Quiz Questions

ITI Quiz - 04-Mar-2026 06:52 PM (ITISKILL4632ED)

Q-Paper A-Paper
Question 1 1 Marks
What is the possible reason for gear slip?
A
Wrong selection gear shift lever
B
Excessive end float of gear
C
Wrong clutch engagement
D
Wornout clutch plate
Question 2 1 Marks
Which type of gear will not produce axial thrust but it neutralizes the axial thrust?
A
Bevel gear
B
Herring bone gears
C
Spur gear
D
Worm gear
Question 3 1 Marks
Which system making the drive cabin comfortable for driving?
A
HVAC system
B
Starting system
C
Steering system
D
Charging system
Question 4 1 Marks
Which system provides DC power source for the various units of the vehicles?
A
Storage system
B
Charging system
C
Lighting system
D
Steering system
Question 5 1 Marks
What is the advantage of using single plate hydraulic clutch?
A
Minimize the force to operate the clutch
B
Effective frictional force obtained
C
Reduce the wear on the clutch plate
D
Easy repair and maintance
Question 6 1 Marks
What is the necessity of square cut seals?
A
Prevent fluid leakage
B
Prevent the seal rolling in groove
C
Provide cushioning effect
D
Withstand radial movement
Question 7 1 Marks
Which part of dual mass fly wheel isolate the fly wheel mass system of the engine?
A
Gear box
B
Vibration damper
C
Crank shaft
D
Cam shaft
Question 8 1 Marks
What is the role of ABS brakes?
A
Provide positive braking
B
Increase frictional power
C
Prevents skidding of vehicles
D
Reduce the brake failures
Question 9 1 Marks
Which instrument is used to check the face out of the fly wheel?
A
Dial indicator
B
Bore dial gauge
C
Outside micrometer
D
Inside micrometer
Question 10 1 Marks
Which system not connected with electrical system?
A
Steering system
B
Charging system
C
Transmission system
D
Suspension system
Question 11 1 Marks
Which type of gear box eliminates the defect of gear wheels move on the shaft to mesh with each other?
A
Sliding mesh gear box
B
Synchromesh gear box
C
Constant mesh gear box
D
Compound wheel mesh gear box
Question 12 1 Marks
Which type of drive line used in high gears and high speed applications?
A
Front wheel drive line
B
Rear wheel drive line
C
All wheel drive line
D
Center wheel drive line
Question 13 1 Marks
Which type of clutch provides more frictional area and simple in construction?
A
Diaphragm spring clutch
B
Cone clutch
C
Dog clutch
D
Multi plate clutch
Question 14 1 Marks
Which type of gear will not produce axial thrust while transmitting torque
A
Helical gears
B
Worm gears
C
Spiral bevel gear
D
Spur gear
Question 15 1 Marks
What is the function of clutch?
A
Increase and decrease the RPM of engine
B
Connect and disconnect power flow engine to gear box
C
Reduce the noise during engine running
D
Prevent malfunctioning of fly wheel
Question 16 1 Marks
Which type of gear converts rotary motion in to linear motion and vice versa?
A
Helical gears
B
Rack and Pinion
C
Spur gear
D
Bevel gear
Question 17 1 Marks
Why synchromesh action is needed in a gear box?
A
Provide noise in gear shifting
B
Prevent cushioning effect during gear shifting
C
Easy gear shifting when vehicle in motion
D
Damage the gear teeth during gear change
Question 18 1 Marks
Which type of synchromesh gear box will produce torque more than three times of other types?
A
Baulk type
B
Baulk ring type
C
Multi and Double cone
D
Porche type
Question 19 1 Marks
Which type of synchromesh gear box used for heavy commercial vehicles?
A
Baulk type
B
Multi and double cone type
C
Baulk ring type
D
Porche type
Question 20 1 Marks
Which system deals with alternator?
A
Steering system
B
Starting system
C
Charging system
D
HVAC system
Question 21 1 Marks
What is the advantage of using constant mesh gear box?
A
Quick change of gear obtained
B
Wrong adjustment of gear will not affect the function
C
Smooth power transmission
D
Efficient lubrication possible
Question 22 1 Marks
What is the permitted range of pedal play observed in the heavy vehicle?
A
6 -10 mm
B
2 -4 mm
C
15 -18 mm
D
16 -20 mm
Question 23 1 Marks
Which part connects propeller shaft?
A
Clutch shaft and fly wheel
B
Gear box and final drive
C
Cam shaft and clutch shaft
D
Crankshaft and final drive
Question 24 1 Marks
What is the reason of gear locked in one gear position?
A
Synchronizer wornout
B
Gear teeth wornout
C
Synchronizing unit stuck
D
In adequate lubrication
Question 25 1 Marks
What is the permitted diffraction angle of pot joint?
A
18 Degree
B
20 Degree
C
22 Degree
D
26 Degree
Question 26 1 Marks
Which type of gear teeth are straight and parallel to the gear axis
A
Spur gear
B
Helical gear
C
Worm gear
D
Bevel gear
Question 27 1 Marks
What is the advantage of mechanical actuated type clutches?
A
Less maintenance and repair
B
Less pedal effort
C
Smooth functioning
D
Easy to operate
Question 28 1 Marks
What is the advantage of using power steering system?
A
To increase the engine power
B
To reduce the fuel consumption
C
To enhance the fuel efficiency
D
To turn and control vehicle with less effort
Question 29 1 Marks
Which factor does not affect the torque transmission by clutch?
A
Size of clutch plat
B
Co-efficient of friction
C
Number of clutch plates used
D
Axial load on the clutch
Question 30 1 Marks
Which type of gear box can be operated even by unskilled driver?
A
Synchromesh gear box
B
Sliding mesh gear box
C
Constant mesh gear box
D
Compound wheel mesh gear box
Question 31 1 Marks
Which type of system is to isolate the vehicle body from road shock and vibration?
A
Control system
B
Suspension system
C
Hydraulic system
D
Steering system
Question 32 1 Marks
Which is noise free clutch?
A
Single plate clutch
B
Diaphragm spring type clutch
C
Multi plate clutch
D
Dog clutch
Question 33 1 Marks
What causes noisy gear box in neutral position?
A
Synchronizing unit stuck
B
Bearing worn out or dry
C
Synchronizer defective
D
Synchronizer worn-out
Question 34 1 Marks
What is the working principle of clutch?
A
Sliding
B
Centripetal
C
Friction
D
Screw and Nut
Question 35 1 Marks
Which type of seal allows a controlled amount of fluid leakage to lubricant moving parts?
A
Static seal
B
Positive seal
C
Non - positive seal
D
Dynamic seal
Question 36 1 Marks
What is the advantage of dual mass fly wheel?
A
Prevent wrong clutch engagements
B
Reduction of gear box and body noises
C
Transmit the torque with less effort
D
Reduce the possibility of clutch slip
Question 37 1 Marks
Which part of heavy vehicle deals with static and dynamic loads without deflection or distortion?
A
Engine
B
Power trains
C
Control system
D
Chassis and frames
Question 38 1 Marks
Which type of gear will have more than one tooth in contact at the same time
A
Spur gear
B
Rack and Pinion
C
Helical gear
D
Spur bevel gear
Question 39 1 Marks
Which way the steering system increase the tire life?
A
By maintaining proper angle between tyres
B
Providing adequate lubrication
C
By applying grease on the steering controls
D
Providing proper brake adjustment
Question 40 1 Marks
What will be the result of defective clutch?
A
Noise in gear shifting
B
Gear slip
C
Gear locked in one gear
D
Gear clash during shifting
Question 41 1 Marks
What is the function of steering system?
A
To control the braking system
B
To increase the engine RPM
C
To guide the vehicle
D
To control the fuel system
Question 42 1 Marks
What is the main feature of hydraulic actuated clutches?
A
Pedal effort transmitted through linkage
B
Pedal effort transmitted through spring
C
Pedal effort transmitted through fluid
D
Pedal effort transmitted through coupling
Question 43 1 Marks
What is the battery system used for heavy vehicles?
A
6 volts
B
12 volts
C
24 volts
D
Provide caution to the driver
Question 44 1 Marks
What is the permitted diffraction angle of double joint?
A
50 Degree
B
62 Degree
C
58 Degree
D
72 Degree
Question 45 1 Marks
Which type of gear box provided with helical gears?
A
Auto synchromesh gear box
B
Constant mesh gear box
C
Sliding mesh gear box
D
Synchromesh gear box
Question 46 1 Marks
What is the advantage of dog clutch?
A
No possibility of slip
B
More frictional area
C
Less pedal force to operate
D
Easy maintenance and repair
Question 47 1 Marks
How to rectify the hard gear shifting?
A
Lubricate the unit
B
Check and realign
C
Adjust clutch pedal free play
D
Re - install springs correctly
Question 48 1 Marks
What is the permitted diffraction angle of tripod joint?
A
13 Degree
B
18 Degree
C
26 Degree
D
32 Degree
Question 49 1 Marks
Which type of joint permit small diffraction angle and linear variations?
A
Flexible discs
B
Double joint
C
Pot joint
D
Tripod joint
Question 50 1 Marks
What is the cause of hard gear shifting?
A
Bearing worn out
B
Synchronizing unit damaged
C
Synchronizing unit stuck
D
Fly wheel ring wornout
Question 51 1 Marks
What is the name of seal used between two parts that do not move in relation to each other?
A
Dynamic seal
B
Static seal
C
Square cut seal
D
Teflow seal
Question 52 1 Marks
Which gear will produce clicking noise during teeth contact?
A
Spur gear
B
Bevel gear
C
Helical gear
D
Worm gear
Question 53 1 Marks
Which part provides flexible connection and permits smooth transfer of torque from gear box to the rear axle?
A
Universal joint
B
Fly wheel
C
Half shaft
D
Clutch shaft
Question 54 1 Marks
Which type of spring suspension responds quickly to road shocks? |
A
Compression spring
B
Coil spring
C
Helical spring
D
Transverse spring
Question 55 1 Marks
What is the effect of weak suspension?
A
Directional unstability of vehicle
B
Carrying excessive payload of vehicle
C
Unequal weight distribution of weight
D
Vibration damping is more effective
Question 56 1 Marks
What is the purpose of beads and plys provided in the tyre?
A
Provide strength to tyre
B
Provide grippness on the surface
C
Prevent tyre slip
D
Resist vibration
Question 57 1 Marks
What is the aspect ratio in the tyre structure?
A
Percentage rartio of tyre height to Rim width
B
Ratio between tyre height to tyre dia
C
Percentage ratio of tyre height to tyre width
D
Ratio between tyre width to Rim width
Question 58 1 Marks
What is the purpose of spokes provided in the wheel?
A
Provide accurate rounds of rim
B
Distribute pre load evenly
C
Provide directional stability of vehicle
D
Suport the chassis frame of vehicle
Question 59 1 Marks
What is the advantage of electronic power steering?
A
Compact in size
B
Energy being consumed only while steering
C
Less ocupation of space
D
Number of components are less
Question 60 1 Marks
What is the purpose of air suspension?
A
Used for leveling purpose
B
Reduce the suspension weight
C
Increase the directional stability
D
Reduce the space ocupation
Question 61 1 Marks
What causes abnormal tyre wear, tyre slip and poor steering stability?
A
Incorrect toe - in and toe - out
B
Malfunctioning of torsion bar
C
Presence of air in the break fluid
D
Front axle bend/twist
Question 62 1 Marks
Which is the heart of integral power steering system?
A
Flow control valve
B
Rotary control valve
C
Pressure relief valve
D
Unloading valves
Question 63 1 Marks
Which type of shock absorber absorbs shocks with the help of friction disc and spring?
A
Hydraulic type
B
Electrical type
C
Mechanical type
D
Pneumatic type
Question 64 1 Marks
What is the recommended valve of combined angle in the steering system?
A
5 - 8 Degree
B
9 - 10 Degree
C
12 - 15 Degree
D
15 - 18 Degree
Question 65 1 Marks
Which device in the air suspension system observe vibration of low amplitude and high frequency?
A
Shock absorber
B
Suspension spring
C
Air bags in the system
D
Leaf spring
Question 66 1 Marks
What is the maximum air pressure supplied by the compressor in the air suspension system?
A
100 to 115 PSI
B
180 to 210 PSI
C
120 to 125 PSI
D
200 to 215 PSI
Question 67 1 Marks
What is the disadvantage of rigid axle suspension system?
A
Spring weight is less
B
Vibration damping is less effective
C
This is a complicated arrangement
D
Maintanance cost is more
Question 68 1 Marks
Why the alternate spokes are screwed to slope forward and backward towards the rim in the wire wheel?
A
To take the uneven load
B
To provide cusioning effect
C
To observe braking and driving torque
D
To distribute the load evanly
Question 69 1 Marks
What is the reason of faster wear out of tyre edges?
A
Under inflated tyre
B
Over inflated tyre
C
Un equal load distribution
D
Defective suspension system
Question 70 1 Marks
What is the advantage of using non reactive suspension arrangement on multi-axle vehicles?
A
Good braking efficiency in both rear wheels
B
Better riding comfort
C
Increased spring life
D
Prevention of ratting
Question 71 1 Marks
Why vibration damper are not used inside the helical spring?
A
Possibility of stuck in one position
B
Not economical
C
Fitting and removing time consuming
D
No effect on load carrying capacity
Question 72 1 Marks
Which type of independent suspension system simple in construction and allow more deflection of the front wheel without effect on the steering?
A
Torsion bar suspension
B
Strut type suspension
C
Coil spring suspension
D
Conventional suspension
Question 73 1 Marks
Which system provided between axles and chassis frame?
A
Braking system
B
Suspension system
C
Steering system
D
Cooling system
Question 74 1 Marks
Which is not the function of suspension system?
A
It maintains body level
B
It gives cushioning effects
C
It transfer braking torque to the chassis
D
It increase steering stability
Question 75 1 Marks
What is the cause of ?Poor self centering? in a vehicle?
A
Filter chocked
B
Improper wheel alignment
C
Loose wheel level
D
Low oil level
Question 76 1 Marks
Which device in electronic power steering converts the steering torque input and its direction in to voltage signals?
A
Rotation sensor
B
Torque sensor
C
Hall effect sensor
D
Temperature sensor
Question 77 1 Marks
Which angle helps in self centering of wheels after negotiating a turn?
A
Castor angle
B
King pin inclination
C
Camber angle
D
Included angle
Question 78 1 Marks
Which type of wheel consist two separate discs are clamped together?
A
Split wheel
B
Wire wheel
C
Disc wheel
D
Heavy vehicle
Question 79 1 Marks
Where the airbags are located in the air suspension system?
A
Betweeen frame and vehicle axle
B
Between high control valve and frame
C
Between air pressure regulator and front axle
D
Between brake tank and vehicle axle
Question 80 1 Marks
What is the advantage of coil spring?
A
Good load carrying capacity
B
High steering and stability
C
Low space requirement
D
Provide greater pay load
Question 81 1 Marks
Which type of spring will have good load carrying capacity and do not have noise in the suspension system?
A
Monoleaf springs
B
Coil spring
C
Multiple - leaf spring
D
Fibre composite springs
Question 82 1 Marks
Which part of tyre referred as 'Crown'?
A
Thread width
B
Rim width
C
Tyre width
D
Thread radious
Question 83 1 Marks
What is the advantage of using nitrogen in the tyres?
A
Provide positive road grip
B
Increase the tyre life
C
Provide cusioning effect on the vehicle
D
Oberve shocks and vibration
Question 84 1 Marks
What is the role of recirculating balls in the integral power steering?
A
Affect steering stability
B
Prevent control in event of hydraulic failure
C
Combine high mechanical efficiency with smooth operation
D
Provide hard steering
Question 85 1 Marks
Which type of shock absorber maintain vehicle ride at a pre - set level according to the load placed over the rear axle?
A
Gas pressurised shock absorber
B
Hydraulic shock absorber
C
Automatic load adjustable shock absorber
D
Mechanical shock absorber
Question 86 1 Marks
What is the use of compact spare tyres?
A
Used for breakdown
B
Used for high altitude
C
Withstand heavy load
D
Withstand high temperature
Question 87 1 Marks
Which is not the benefit of power steering?
A
Effort less steering
B
Quick response
C
Absolute control during driving
D
Positive breaking system
Question 88 1 Marks
What is the cause of 'Wheel wobbling'?
A
Improper tyre pressure
B
King pin wornout
C
Drop in pressure
D
Wrong hose size
Question 89 1 Marks
Which type of suspension spring made of fibre glass, laminated and bonded together by tough polyster resins?
A
Coil springs
B
Multiple leaf springs
C
Monoleaf springs
D
Fiber composite springs
Question 90 1 Marks
Which part of electronic power steering revert back to manual steering in case of failure in power steering?
A
Solenoid valve
B
Phase compensator
C
Fail safe relay
D
Current controller
Question 91 1 Marks
What is the advantage of using run flat tyres?
A
Less cost and maintance
B
Eliminate head for spare tyre and jack
C
Resist vibration
D
Provide equal distribution of load
Question 92 1 Marks
What is the cause of ? low pressure? in the hydraulic power steering system?
A
Low oil level
B
Wrong flow control valve setting
C
Air in the system
D
Wornout sealing ring
Question 93 1 Marks
What causes the deffect of ?Hard steering? in the hydraulic power steering system?
A
Improper position of drop arm
B
Tie rod loose fitting
C
Band axle beam
D
Improper size of tyre
Question 94 1 Marks
What will effect in case of over inflated tyres?
A
Tyre will wearout at centre
B
Tyre will wear out at edges
C
Tyre will crack at edges
D
Tyre will crack at centre
Question 95 1 Marks
What is the disadvantage of excessive positive camber in the wheel aslignment?
A
Tyre outer edge will wearout fast
B
Tyre centre will wearout
C
Tyre bleeding wire wear out
D
Tyre thread wear out
Question 96 1 Marks
What is the impact of larger scrub radious?
A
Wear on the outer edge of tyre
B
Unequal braking on the front wheel
C
Wear on the centre part of tyre
D
Bending of steering linkage point
Question 97 1 Marks
What is the cause of noise in steering?
A
High fluid level
B
Presence of air in the fluid
C
Defective flow control valve
D
Defective torsion bar
Question 98 1 Marks
Which part of coil spring allows angular movement of linkages?
A
Ball joint
B
Stabiliser bar
C
Torsion bar
D
Lower control arm
Question 99 1 Marks
Why tyre wear found abnormal in the vehicle?
A
Loose wheel nut
B
Improper linkage adjustment
C
Improper tol-in and tol - out
D
Improper tyre pressure
Question 100 1 Marks
What will be the effect of negative camber excessive in the wheel alignment?
A
Outer edge of tyre wearout faster
B
Centreof tyre wearout faster
C
Inner edge of tyre wear out faster
D
Cracks developed in the tyre tread
Question 101 1 Marks
Which steering system will provide assistance even when the engine is not running?
A
Integral power steering
B
Linkage power steering
C
Electronic power steering
D
Manual steering
Question 102 1 Marks
What is the main cause for wear on one side of tyre?
A
Improper camber
B
Improper caster
C
Over inflation
D
Under inflation
Question 103 1 Marks
How the tyre is specified?
A
Shoulder width, Boad circle dia. Ply rating
B
Shoulder dia, Bead circle dia, Ply rating
C
Shoulder width, Tyre thickness
D
Ply rating, tyre inner circle dia, shoulder width
Question 104 1 Marks
What is the purpose of castor in wheel alignment?
A
Maintain directional stability and control
B
Reduce tyre wear
C
Reduce abnormal vibration
D
Convert steering torque input into voltage signal
Question 105 1 Marks
Why light weight cars use low steering ratio?
A
To obtain low steering effect
B
To obtain large steering effect
C
To obtain constant steering effect
D
To obtain no steering effect
Question 106 1 Marks
What is the disadvantage of independent suspension system?
A
More maintanance cost
B
Vibration damping is less effective
C
Shocks transmitted from one wheel to other
D
Spring weight is more
Question 107 1 Marks
Which part of integral power steering reduce fluid pressure?
A
Torsion bar
B
Rotary valve
C
Unloading valve
D
Flow control valve
Question 108 1 Marks
What is the steering linkage ratio if the pitman arm length twice of steering arm length?
A
02:01
B
02:01
C
01:02
D
02:03
Question 109 1 Marks
Why rubber buffer is provided in the main spring of suspension system?
A
Transfer pay load smoothly
B
Protect chassis frame from heavy jerk
C
Transfer the load equaly
D
Provide steering control stability
Question 110 1 Marks
Which advantage does not suit to wheel alignment?
A
Minimise tyre wear
B
Reduce driver effort
C
Achieve self centering after turning
D
Achieve easy torque transmission
Question 111 1 Marks
Which type of suspension spring can not transfer wheel guidence forces?
A
Helical springs
B
Coil springs
C
Leaf springs
D
Compression springs
Question 112 1 Marks
What is the average power steering gear ratio followed in general?
A
40% less than manual steering
B
Equal to manual steering
C
20% less than manual steering
D
10% more than manual steering
Question 113 1 Marks
What causes 'Air suction' in pump of hydraulic power steering system?
A
Noise
B
High fluid level
C
Low pressure
D
Steering wheel play
Question 114 1 Marks
When the driver is warned of difference in tyre pressure?
A
Difference in pressure exceeds 30%
B
Difference in pressure more than 10%
C
Difference in pressure more than 20%
D
Difference in pressure exceeds 40%
Question 115 1 Marks
Where the tyre pressure sensor secured in the wheel assembly?
A
Secured in the wheel hub
B
Secured in the tyre outer edges
C
Bolted to metal valve
D
Bolted to the rim centre
Question 116 1 Marks
What is the advantage of using independent suspension system?
A
This is simple arrangement
B
Shocks are transmitted from one wheel to other
C
Spring weight is less
D
Maintance cost is less
Question 117 1 Marks
What will be effect of unequal castor in the vehicle?
A
Vehicle pull to one side wheel
B
Vehicle will not move
C
Driver have to use less effort on steering
D
Increase steering stability
Question 118 1 Marks
How to rectify the defect of noise in hydraulic steering?
A
Replace the with new fluid
B
Fill fluid to correct level and bleed the system
C
Adjust the torsion bar linkage
D
Replace the flow control valve
Question 119 1 Marks
Which type of shock absorber is easy for replacement and handling?
A
Vane type
B
Piston type
C
Mechanical type
D
Telescopic type
Question 120 1 Marks
What is the reason of steering wheel play excess?
A
Improper pre load defective steering
B
Low oil level
C
Drop in pressure
D
Wornout sealing rings
Question 121 1 Marks
What is the function of Rim in the wheel construction?
A
Support the axle
B
Provides balancing of vehicle
C
Holds the tyre in correct position
D
Distribute the load equally
Question 122 1 Marks
What is the range of steering ratio available in general?
A
8 : 2 to 22 : 2
B
11 : 2 to 22 : 2
C
11 : 1 to 24 : 1
D
10 : 1 to 18 :1
Question 123 1 Marks
How the tyre height is calculated?
A
Rim dia - tyre outer dia
B
Tyre outer dia - Rim dia
C
Thread width + Tyre width
D
Tyre width + Bead circle dia
Question 124 1 Marks
What does the no: 14PR denotes in the tyre specification 9? x 14 - 14PR?
A
Shoulder width
B
Bead circle dia
C
Ply rating
D
Tyre thickness
Question 125 1 Marks
Which facor affecting suspension?
A
Damaged chassis frame
B
Wornout spring
C
More shocks, uncomfortable riding
D
Abnormal tyre wear
Question 126 1 Marks
What will be the effect of negative scrub radious?
A
Wheel is caused to toe - out
B
Wheel is kept in straight position
C
The tyre centre portion wear out
D
Wheel is caused to toe - in
Question 127 1 Marks
Which rating indicate the braking capablities of the tire to the consumer?
A
Ply rating
B
Tyre rating
C
Traction rating
D
Temperature rating
Question 128 1 Marks
What will be the result of improper brake adjustment?
A
Hard steering
B
Wheel wobbling
C
Steering wheel play
D
Vehicle pulling to one side
Question 129 1 Marks
What is the name of distance between most protruding portions on both sides of tyre?
A
Tyre outer diameter
B
Tyre height
C
Tyre width
D
Thread radious
Question 130 1 Marks
What is the advantage of using independent suspension system?
A
This is simple arrangement
B
Shocks are transmitted from one wheel to other
C
Spring weight is less
D
Maintance cost is less
Question 131 1 Marks
What is the material constituent of semi metallic brake lining?
A
Carbon fiber
B
Aluminium oxide
C
Fine polished steel wool
D
Carbon composite
Question 132 1 Marks
What is the purpose of beads and plys provided in the tyre?
A
Provide strength to tyre
B
Provide grippness on the surface
C
Prevent tyre slip
D
Resist vibration
Question 133 1 Marks
What will be the effect of negative camber excessive in the wheel alignment?
A
Outer edge of tyre wearout faster
B
Centreof tyre wearout faster
C
Inner edge of tyre wear out faster
D
Cracks developed in the tyre tread
Question 134 1 Marks
Which type of shock absorber maintain vehicle ride at a pre - set level according to the load placed over the rear axle?
A
Gas pressurised shock absorber
B
Hydraulic shock absorber
C
Automatic load adjustable shock absorber
D
Mechanical shock absorber
Question 135 1 Marks
What is the disadvantage of excessive positive camber in the wheel aslignment?
A
Tyre outer edge will wearout fast
B
Tyre centre will wearout
C
Tyre bleeding wire wear out
D
Tyre thread wear out
Question 136 1 Marks
Where the non-return valve is located in the centre feed master cylinder?
A
On the reservoir
B
On the cylinder head
C
On the bypass port
D
On the pistons head
Question 137 1 Marks
What is the brake pedal free play range permitted while adjusting?
A
4 mm to 8 mm
B
8 mm to 10 mm
C
6 mm to 12 mm
D
13 mm to 18 mm
Question 138 1 Marks
Which principle is applicable for hydraulic brakes?
A
Pascal's law
B
Boyle's law
C
Newton's law of motion
D
Hooke's law
Question 139 1 Marks
Which device in electronic power steering converts the steering torque input and its direction in to voltage signals?
A
Rotation sensor
B
Torque sensor
C
Hall effect sensor
D
Temperature sensor
Question 140 1 Marks
Which rating indicate the braking capablities of the tire to the consumer?
A
Ply rating
B
Tyre rating
C
Traction rating
D
Temperature rating
Question 141 1 Marks
Which part of electronic power steering revert back to manual steering in case of failure in power steering?
A
Solenoid valve
B
Phase compensator
C
Fail safe relay
D
Current controller
Question 142 1 Marks
What is the purpose of brake proportioning valves in the braking system?
A
Reduces brake pedal effort
B
Increase braking efficiency
C
Provide balanced braking
D
Prevent front wheel lockup
Question 143 1 Marks
What is the advantage of using non reactive suspension arrangement on multi-axle vehicles?
A
Good braking efficiency in both rear wheels
B
Better riding comfort
C
Increased spring life
D
Prevention of ratting
Question 144 1 Marks
What is the effect of weak suspension?
A
Directional unstability of vehicle
B
Carrying excessive payload of vehicle
C
Unequal weight distribution of weight
D
Vibration damping is more effective
Question 145 1 Marks
What is the purpose of air suspension?
A
Used for leveling purpose
B
Reduce the suspension weight
C
Increase the directional stability
D
Reduce the space ocupation
Question 146 1 Marks
Which is the heart of integral power steering system?
A
Flow control valve
B
Rotary control valve
C
Pressure relief valve
D
Unloading valves
Question 147 1 Marks
What is the reason of steering wheel play excess?
A
Improper pre load defective steering
B
Low oil level
C
Drop in pressure
D
Wornout sealing rings
Question 148 1 Marks
What is the use of compact spare tyres?
A
Used for breakdown
B
Used for high altitude
C
Withstand heavy load
D
Withstand high temperature
Question 149 1 Marks
What is the precautionary measures to be adapted while removing secondary piston to prevent damage
A
Remove the circlip before
B
Remove the retaining spring before
C
Remove the stopper bolt before
D
Remove the return spring before
Question 150 1 Marks
Which is not the function of suspension system?
A
It maintains body level
B
It gives cushioning effects
C
It transfer braking torque to the chassis
D
It increase steering stability
Question 151 1 Marks
How to rectify the defect of noise in hydraulic steering?
A
Replace the with new fluid
B
Fill fluid to correct level and bleed the system
C
Adjust the torsion bar linkage
D
Replace the flow control valve
Question 152 1 Marks
Which type of suspension spring can not transfer wheel guidence forces?
A
Helical springs
B
Coil springs
C
Leaf springs
D
Compression springs
Question 153 1 Marks
Which device detect the driven wheel spin through sensor?
A
EBD
B
ECU
C
TCS
D
ELSD
Question 154 1 Marks
What is the advantage of electronic power steering?
A
Compact in size
B
Energy being consumed only while steering
C
Less ocupation of space
D
Number of components are less
Question 155 1 Marks
What is the aspect ratio in the tyre structure?
A
Percentage rartio of tyre height to Rim width
B
Ratio between tyre height to tyre dia
C
Percentage ratio of tyre height to tyre width
D
Ratio between tyre width to Rim width
Question 156 1 Marks
What will be the effect of negative scrub radious?
A
Wheel is caused to toe - out
B
Wheel is kept in straight position
C
The tyre centre portion wear out
D
Wheel is caused to toe - in
Question 157 1 Marks
What will be effect of unequal castor in the vehicle?
A
Vehicle pull to one side wheel
B
Vehicle will not move
C
Driver have to use less effort on steering
D
Increase steering stability
Question 158 1 Marks
What is the binding material used in organic brake lining?
A
Resin
B
Mica
C
Asbestos
D
Fibre glass
Question 159 1 Marks
What is the steering linkage ratio if the pitman arm length twice of steering arm length?
A
02:01
B
02:01
C
01:02
D
02:03
Question 160 1 Marks
How the tyre height is calculated?
A
Rim dia - tyre outer dia
B
Tyre outer dia - Rim dia
C
Thread width + Tyre width
D
Tyre width + Bead circle dia
Question 161 1 Marks
What is the disadvantage of rigid axle suspension system?
A
Spring weight is less
B
Vibration damping is less effective
C
This is a complicated arrangement
D
Maintanance cost is more
Question 162 1 Marks
What is the cause of ?Poor self centering? in a vehicle?
A
Filter chocked
B
Improper wheel alignment
C
Loose wheel level
D
Low oil level
Question 163 1 Marks
Which device in the air suspension system observe vibration of low amplitude and high frequency?
A
Shock absorber
B
Suspension spring
C
Air bags in the system
D
Leaf spring
Question 164 1 Marks
Which type of spring suspension responds quickly to road shocks? |
A
Compression spring
B
Coil spring
C
Helical spring
D
Transverse spring
Question 165 1 Marks
What is the function of Rim in the wheel construction?
A
Support the axle
B
Provides balancing of vehicle
C
Holds the tyre in correct position
D
Distribute the load equally
Question 166 1 Marks
When the driver is warned of difference in tyre pressure?
A
Difference in pressure exceeds 30%
B
Difference in pressure more than 10%
C
Difference in pressure more than 20%
D
Difference in pressure exceeds 40%
Question 167 1 Marks
What is the role of recirculating balls in the integral power steering?
A
Affect steering stability
B
Prevent control in event of hydraulic failure
C
Combine high mechanical efficiency with smooth operation
D
Provide hard steering
Question 168 1 Marks
Which type of shock absorber absorbs shocks with the help of friction disc and spring?
A
Hydraulic type
B
Electrical type
C
Mechanical type
D
Pneumatic type
Question 169 1 Marks
What is the cause of 'Wheel wobbling'?
A
Improper tyre pressure
B
King pin wornout
C
Drop in pressure
D
Wrong hose size
Question 170 1 Marks
Which type of wheel consist two separate discs are clamped together?
A
Split wheel
B
Wire wheel
C
Disc wheel
D
Heavy vehicle
Question 171 1 Marks
Which type of independent suspension system simple in construction and allow more deflection of the front wheel without effect on the steering?
A
Torsion bar suspension
B
Strut type suspension
C
Coil spring suspension
D
Conventional suspension
Question 172 1 Marks
What is the permitted brake pedal travel in the hydraulic brake system?
A
2 to 12 mm
B
6 to 12 mm
C
7 to 12 mm
D
9 to 12 mm
Question 173 1 Marks
Which advantage does not suit to wheel alignment?
A
Minimise tyre wear
B
Reduce driver effort
C
Achieve self centering after turning
D
Achieve easy torque transmission
Question 174 1 Marks
Why light weight cars use low steering ratio?
A
To obtain low steering effect
B
To obtain large steering effect
C
To obtain constant steering effect
D
To obtain no steering effect
Question 175 1 Marks
What does the no: 14PR denotes in the tyre specification 9? x 14 - 14PR?
A
Shoulder width
B
Bead circle dia
C
Ply rating
D
Tyre thickness
Question 176 1 Marks
What is the material used to make brake drum?
A
Stainless steel
B
High carbon steel
C
Special type castiron
D
High speed steel
Question 177 1 Marks
What is the range of steering ratio available in general?
A
8 : 2 to 22 : 2
B
11 : 2 to 22 : 2
C
11 : 1 to 24 : 1
D
10 : 1 to 18 :1
Question 178 1 Marks
Why rubber buffer is provided in the main spring of suspension system?
A
Transfer pay load smoothly
B
Protect chassis frame from heavy jerk
C
Transfer the load equaly
D
Provide steering control stability
Question 179 1 Marks
What is the impact of larger scrub radious?
A
Wear on the outer edge of tyre
B
Unequal braking on the front wheel
C
Wear on the centre part of tyre
D
Bending of steering linkage point
Question 180 1 Marks
Which type of shock absorber is easy for replacement and handling?
A
Vane type
B
Piston type
C
Mechanical type
D
Telescopic type
Question 181 1 Marks
Which material is used for brake rotors and brake pads for aircraft and racing cars?
A
Sintered alloy
B
Carbon fiber reinforced carbon composite
C
Asbestos
D
Copper, brass, steel
Question 182 1 Marks
Which part of integral power steering reduce fluid pressure?
A
Torsion bar
B
Rotary valve
C
Unloading valve
D
Flow control valve
Question 183 1 Marks
How the tyre is specified?
A
Shoulder width, Boad circle dia. Ply rating
B
Shoulder dia, Bead circle dia, Ply rating
C
Shoulder width, Tyre thickness
D
Ply rating, tyre inner circle dia, shoulder width
Question 184 1 Marks
What will effect in case of over inflated tyres?
A
Tyre will wearout at centre
B
Tyre will wear out at edges
C
Tyre will crack at edges
D
Tyre will crack at centre
Question 185 1 Marks
What causes abnormal tyre wear, tyre slip and poor steering stability?
A
Incorrect toe - in and toe - out
B
Malfunctioning of torsion bar
C
Presence of air in the break fluid
D
Front axle bend/twist
Question 186 1 Marks
Why the alternate spokes are screwed to slope forward and backward towards the rim in the wire wheel?
A
To take the uneven load
B
To provide cusioning effect
C
To observe braking and driving torque
D
To distribute the load evanly
Question 187 1 Marks
What is the advantage of using nitrogen in the tyres?
A
Provide positive road grip
B
Increase the tyre life
C
Provide cusioning effect on the vehicle
D
Oberve shocks and vibration
Question 188 1 Marks
Why tyre wear found abnormal in the vehicle?
A
Loose wheel nut
B
Improper linkage adjustment
C
Improper tol-in and tol - out
D
Improper tyre pressure
Question 189 1 Marks
What is the name of distance between most protruding portions on both sides of tyre?
A
Tyre outer diameter
B
Tyre height
C
Tyre width
D
Thread radious
Question 190 1 Marks
Where the airbags are located in the air suspension system?
A
Betweeen frame and vehicle axle
B
Between high control valve and frame
C
Between air pressure regulator and front axle
D
Between brake tank and vehicle axle
Question 191 1 Marks
What is the function of EBD (Electronic Brake - Force Distribution) in anti lock brake system?
A
It control the slip of the front wheel
B
It controls the slip of the rear wheel
C
It increase brake pressure to the rear wheel
D
It improve directional stability of vehicle
Question 192 1 Marks
What is the advantage of TCS/ELSD brake circuit of wheel?
A
Reduce the pressure at wheel cylinder
B
Reduce fluid pressure
C
Automatic adjustment of engine torque to the grip rates
D
Avoid wheel lockup by releasing pressure
Question 193 1 Marks
What is the main cause for wear on one side of tyre?
A
Improper camber
B
Improper caster
C
Over inflation
D
Under inflation
Question 194 1 Marks
Which type of spring will have good load carrying capacity and do not have noise in the suspension system?
A
Monoleaf springs
B
Coil spring
C
Multiple - leaf spring
D
Fibre composite springs
Question 195 1 Marks
What is the purpose of castor in wheel alignment?
A
Maintain directional stability and control
B
Reduce tyre wear
C
Reduce abnormal vibration
D
Convert steering torque input into voltage signal
Question 196 1 Marks
What causes 'Air suction' in pump of hydraulic power steering system?
A
Noise
B
High fluid level
C
Low pressure
D
Steering wheel play
Question 197 1 Marks
What is the function of traction control system?
A
Prevent wheel spinning
B
Release the pressure to expansion tank
C
Reduce the engine torque
D
Reduce steering effort
Question 198 1 Marks
Which is not the benefit of power steering?
A
Effort less steering
B
Quick response
C
Absolute control during driving
D
Positive breaking system
Question 199 1 Marks
What is the purpose of 'G' sensor
A
Locking pressure inside wheel cylinder
B
Measuring deceleration rate of vehicle
C
Reduce pressure at wheel cylinder
D
Detect wheel lock up condition
Question 200 1 Marks
What is the purpose of spokes provided in the wheel?
A
Provide accurate rounds of rim
B
Distribute pre load evenly
C
Provide directional stability of vehicle
D
Suport the chassis frame of vehicle
Question 201 1 Marks
Which angle helps in self centering of wheels after negotiating a turn?
A
Castor angle
B
King pin inclination
C
Camber angle
D
Included angle
Question 202 1 Marks
What will be the result of improper brake adjustment?
A
Hard steering
B
Wheel wobbling
C
Steering wheel play
D
Vehicle pulling to one side
Question 203 1 Marks
Why vibration damper are not used inside the helical spring?
A
Possibility of stuck in one position
B
Not economical
C
Fitting and removing time consuming
D
No effect on load carrying capacity
Question 204 1 Marks
Which facor affecting suspension?
A
Damaged chassis frame
B
Wornout spring
C
More shocks, uncomfortable riding
D
Abnormal tyre wear
Question 205 1 Marks
What is the cause of ? low pressure? in the hydraulic power steering system?
A
Low oil level
B
Wrong flow control valve setting
C
Air in the system
D
Wornout sealing ring
Question 206 1 Marks
Which steering system will provide assistance even when the engine is not running?
A
Integral power steering
B
Linkage power steering
C
Electronic power steering
D
Manual steering
Question 207 1 Marks
Which system provided between axles and chassis frame?
A
Braking system
B
Suspension system
C
Steering system
D
Cooling system
Question 208 1 Marks
How the EBD (Electronic Brake Force Distribution) failure indicated to the driver?
A
Peep sound in the cabin
B
Indication lamp the dash board
C
Glowing the parking lamp
D
Flickering the tail lamp
Question 209 1 Marks
Which type of suspension spring made of fibre glass, laminated and bonded together by tough polyster resins?
A
Coil springs
B
Multiple leaf springs
C
Monoleaf springs
D
Fiber composite springs
Question 210 1 Marks
What is the average power steering gear ratio followed in general?
A
40% less than manual steering
B
Equal to manual steering
C
20% less than manual steering
D
10% more than manual steering
Question 211 1 Marks
What is the recommended valve of combined angle in the steering system?
A
5 - 8 Degree
B
9 - 10 Degree
C
12 - 15 Degree
D
15 - 18 Degree
Question 212 1 Marks
What is the cause of noise in steering?
A
High fluid level
B
Presence of air in the fluid
C
Defective flow control valve
D
Defective torsion bar
Question 213 1 Marks
What is the disadvantage of independent suspension system?
A
More maintanance cost
B
Vibration damping is less effective
C
Shocks transmitted from one wheel to other
D
Spring weight is more
Question 214 1 Marks
What is the advantage of coil spring?
A
Good load carrying capacity
B
High steering and stability
C
Low space requirement
D
Provide greater pay load
Question 215 1 Marks
Which part of tyre referred as 'Crown'?
A
Thread width
B
Rim width
C
Tyre width
D
Thread radious
Question 216 1 Marks
What causes the deffect of ?Hard steering? in the hydraulic power steering system?
A
Improper position of drop arm
B
Tie rod loose fitting
C
Band axle beam
D
Improper size of tyre
Question 217 1 Marks
What is the reason of faster wear out of tyre edges?
A
Under inflated tyre
B
Over inflated tyre
C
Un equal load distribution
D
Defective suspension system
Question 218 1 Marks
Which part of coil spring allows angular movement of linkages?
A
Ball joint
B
Stabiliser bar
C
Torsion bar
D
Lower control arm
Question 219 1 Marks
What is the maximum air pressure supplied by the compressor in the air suspension system?
A
100 to 115 PSI
B
180 to 210 PSI
C
120 to 125 PSI
D
200 to 215 PSI
Question 220 1 Marks
Where the tyre pressure sensor secured in the wheel assembly?
A
Secured in the wheel hub
B
Secured in the tyre outer edges
C
Bolted to metal valve
D
Bolted to the rim centre
Question 221 1 Marks
Which device permits air to the air brake
system?
A
Hand control valve
B
Spring brake actuator
C
System protection valve
D
Brake valve
Question 222 1 Marks
What is the advantage of using run flat tyres?
A
Less cost and maintance
B
Eliminate head for spare tyre and jack
C
Resist vibration
D
Provide equal distribution of load
Question 223 1 Marks
What is the cause for high oil consumption?
A
Coolant level
B
Clogged oil filter
C
Clogged air cleaner
D
Weak compression
Question 224 1 Marks
What is the possible cause of engine runs erratically?
A
Weak compression
B
High compression
C
Air lock in fuel system
D
Poor oil circulation
Question 225 1 Marks
What is to be checked for low power generation of engine?
A
Water level
B
Clogged oil filter
C
Battery condition
D
Clogged air cleaner
Question 226 1 Marks
What is to be checked up if the engine overheats?
A
Hydraulic fluid level
B
Fuel level
C
Coolant level
D
Electrolyte level
Question 227 1 Marks
What is the cause for high fuel consumption in diesel engine?
A
Oil level high
B
Piston ring worn-out
C
Fuel level in tank is high
D
High compression pressure
Question 228 1 Marks
What is the cause for engine fails to start?
A
Defective oil pump
B
Defective thermostat
C
Defective water pump
D
Defective starter motor
Question 229 1 Marks
What is the effect of defective oil pump?
A
Engine seized
B
High oil pressure
C
Low oil pressure
D
Detonation occur
Question 230 1 Marks
What is the mechanical cause of engine does not start?
A
Radiator cap blocked
B
Fuel tank cap vent hole blocked
C
Oil filter blocked
D
Oil pump gear worn out
Question 231 1 Marks
What is the effect of discharged battery?
A
Engine does not crank
B
Abnormal noise in the engine
C
Engine back fire
D
Air lock in the fuel system
Question 232 1 Marks
Which is the cause for high oil consumption?
A
Low oil level
B
Oil filter clogged
C
Oil viscosity high
D
Worn-out valve guides
Question 233 1 Marks
Why a diesel engine starts but not running idle?
A
Low fuel level in tank
B
Low charged battery
C
Clogged nozzle
D
No air in fuel system
Question 234 1 Marks
What is the effect of defective injector?
A
Engine does not start
B
Engine over heated
C
High fuel pressure
D
High oil pressure
Question 235 1 Marks
What is reason for low oil pressure?
A
Oil level is high
B
Clogged air filter
C
Clogged oil filter
D
Defective pressure release valve
Question 236 1 Marks
What is the possible cause of high fuel consumption?
A
High fuel in the tank
B
Low fuel in the tank
C
Wrong injection timing
D
High compression pressure
Question 237 1 Marks
Which type of sensor used to monitor the injection timing and ignition timing of engine?
A
Pressure sensor
B
Throttle position sensor
C
Crank and cam, shaft position sensor
D
Engine knocking sensor
Question 238 1 Marks
Which type of sensor located at the exhaust manifold?
A
Hall effect sensor
B
Oxygen sensor
C
Air vertex sensor
D
Mass air flow sensor
Question 239 1 Marks
What is the purpose of condensor in the ignition system?
A
Distribute high tension current to spark
B
Insulate spark plug electrodes
C
Prevents arcs at the points
D
Open and close the primary circuit
Question 240 1 Marks
Which electronic control system prevent stalling of engine when additional loads are placed on the engine?
A
Fuel injection control system
B
Fuel pump control system
C
Idle speed control system
D
Ignition control system
Question 241 1 Marks
What is the purpose of breaker plate in the distributor?
A
Acts as contact breaker
B
Prevents dirt, carbon into distributor
C
Conduct the ignition surge to the electrode
D
Distribute high tension surge to ignition coil
Question 242 1 Marks
What is the temperature limit set to ON/OFF for the radiator control system?
A
ON and OFF at below 98 Degree Centigrade and 93 Degree Centigrade
B
ON and OFF at above 98 Degree Centigrade and 93 Degree Centigrade
C
ON and OFF at below 93 Degree Centigrade and 84 Degree Centigrade
D
ON and OFF at above 90 Degree Centigrade and 81 Degree Centigrade
Question 243 1 Marks
Which part of ignition system connects and disconnects primary circuit?
A
Distributor
B
Condenser
C
Contact breaker
D
Ignition coil
Question 244 1 Marks
How much is the difference in resistance is permitted in the temperature sensor unit?
A
More than 100 ohms
B
More than 150 ohms
C
More than 200 ohms
D
More than 400 ohms
Question 245 1 Marks
Which electronic control system supplies optimum airfuel mixture to the combustion chamber under different driving condition?
A
Idle speed control system
B
Fuel injection control system
C
Ignition control system
D
Oil pump control system
Question 246 1 Marks
Which sensor is used to alert the driver of unseen obstacles?
A
Speed sensor
B
Parking sensor
C
Torque sensor
D
Pressure sensor
Question 247 1 Marks
Which part of cold start system allow additional air to bypass the throttle plate?
A
Auxiliary air valve
B
Air supply relay
C
Thermo time switch
D
Oxygen sensor
Question 248 1 Marks
How many spark plugs are ignited at the same time in the distributor less ignition system?
A
Two
B
Three
C
Four
D
Five
Question 249 1 Marks
Which sensor used to measure the magnitude of a magnetic field?
A
Air vertex sensor
B
Voltage sensor
C
Hall effect sensor
D
Engine knocking sensor
Question 250 1 Marks
What is the permitted spark plug gap in general?
A
2.83 mm
B
2.03 mm
C
2.53 mm
D
2.92 mm
Question 251 1 Marks
What is the firing order for four cylinder engine?
A
1,3,4,2
B
1,2,3,4
C
2,3,1,4
D
3,1,4,2
Question 252 1 Marks
Why many engines use spark plugs with tapered seats?
A
Helps in easy fitting
B
Produce correct alignment
C
Provide clearance space
D
Produce good sealing
Question 253 1 Marks
What is the contributory cause for the engine hard to start - cold?
A
Thermo time switch faulty
B
Defective oil pressure
C
Faulty fuel filter
D
Damaged radiator
Question 254 1 Marks
Where the engine control module installed in the engine?
A
Under side of instrument panel
B
In the gear box assembly
C
Near the fly wheel
D
Front side of radiator
Question 255 1 Marks
What is the special feature of cold start system?
A
Provide additional fuel during starting
B
Provide positive starting
C
Intake manifold
D
Determine timing and sequence of fuel injection
Question 256 1 Marks
What is the cause of electrodes burning in the spark plug?
A
Plug runs too cold
B
Incorrect tappet clearance
C
Plug runs too hot
D
Incorrect fuel mixture
Question 257 1 Marks
Which sensor located in the intake manifold or throttle body?
A
Mass air flow sensor
B
Oxygen sensor
C
Hall effect sensor
D
Air vertex sensor
Question 258 1 Marks
What is the effect on engine performance if air leak in the induction system observed?
A
Engine hard to start - Hot
B
Engine cranks but will not start
C
Pressure regulator
D
Engine produce abnormal noise
Question 259 1 Marks
Which senor is used to sense vibration?
A
Engine knocking sensor
B
Hall effect sensor
C
Air vertex sensor
D
Vehicle speed sensor
Question 260 1 Marks
What is the function of distributor in the battery ignition system?
A
Distribute high tension current from ignition coil to secondary winding
B
Distribute high tension current flow ignition coil to spark plugs
C
Opens and closes the secondary circuit of coil
D
Distribute low tension current to ignition coil
Question 261 1 Marks
What is the function of ignition coil?
A
Step up low voltage to high voltage
B
Step down high voltage to low voltage
C
Connect the primary circuit to ignition switch
D
Disconnect the secondary circuit to
Question 262 1 Marks
What is the function of thermo time switch in engine control module?
A
Sense exhaust gas temperature
B
Sense engine coolant temperature
C
Indicate lubricant temperature
D
Indicate fuel temperature
Question 263 1 Marks
Which instrument indicate engine RPM in the engine control module?
A
Pyno meter
B
Tachometer
C
Galvano meter
D
Hydro meter
Question 264 1 Marks
What is the achived through spark plug end gap design?
A
Improve combustion swirl
B
Increase the fuel pressure
C
Improve fuel atomisation
D
Helps for the complete ignition
Question 265 1 Marks
Which part of electronic fuel injection system controls opening of bypass air passage?
A
Pressure relief valve
B
Idle air control valve
C
Throttle valve
D
Check valve
Question 266 1 Marks
Which law states that the induction of electromotive force in any closed circuit is equal to the rate of change of magnetic flux?
A
Law of resistance
B
Ohms law
C
Charles law
D
Faradays law
Question 267 1 Marks
What is the purpose of tachometer?
A
Indicate coolant temperature
B
Indicate engine RPM
C
Indictae fuel level
D
Indicate oil pressure
Question 268 1 Marks
What will be the effect of the long heat path travel in the spark plug?
A
Spark plug will run cooler
B
Life of spark plug increased
C
Spark plug will run hot
D
Improper atomisation
Question 269 1 Marks
What is the advantage of EFI engine management system?
A
Increased thermal efficiency
B
Increased mechanical efficiency
C
Better starting and acceleration
D
Effective fuel distribution achived
Question 270 1 Marks
What is the adverse effect of fly wheel ring to starter pinion ratio is very high?
A
Reduce the starting torque
B
Damage to starter motor
C
Increase the starting torque
D
Starter motor fails to start
Question 271 1 Marks
What is the possible cause of motor not running and no operating sound of magnetic switch?
A
Burnt commutator
B
Battery discharged
C
Worn brushes
D
Worn pinion tip
Question 272 1 Marks
What is the cause of low voltage output from alternator?
A
Faulty regulator
B
Loose mountings
C
Wornout bearing
D
Loose drive pully
Question 273 1 Marks
Where the starter motor located?
A
Front side of engine
B
Rear side of engine
C
Top side of engine
D
Bottom of engine
Question 274 1 Marks
What is the function of solenoid switch?
A
Open and close the circuit between primary and secondary
B
Stepdown voltage from primary to secondary winding
C
Close the contact between battery and starting motor
D
Shift the lever to engage the plunger
Question 275 1 Marks
What is the contributory cause of starter motor running but not cranking?
A
Abnormally woem brush
B
Over running clutch slipping
C
Faullty ECM circuit
D
Poor contacting action of ignition
Question 276 1 Marks
Which part of bendix drive starting system limit the turning of the sleeve on the armature shaft?
A
Pinion
B
Bendix drive spring
C
Anti drift spring
D
Fly wheel
Question 277 1 Marks
What is the minimum RPM of crank shaft required to start the engine?
A
180 RPM
B
200 RPM
C
100 RPM
D
150 RPM
Question 278 1 Marks
Why anti drift spring is provided in the bendix drive starting system?
A
Provide grip over armature shaft
B
Avoid the side way movement of armature shaft
C
Prevent pinion striking fly wheel
D
Resist wear on the fly wheel
Question 279 1 Marks
How the alternator field terminal is connected to the battery?
A
By ignition switch
B
By indicator lamp
C
By charge indicator
D
By voltage regulator
Question 280 1 Marks
What is the working principle of alternator?
A
Ohms law
B
Law of resistance
C
Electromagnetic induction
D
Lenz's law
Question 281 1 Marks
What is the function of diodes?
A
Convert AC to DC
B
Convert DC to AC
C
Step up voltage
D
Step down voltage
Question 282 1 Marks
What is the function of drive end frame in the alternator?
A
Carriers driving pulley
B
Connecting to spring loaded brush
C
Allow current flow in one direction
D
Support the pre lubricated sealed bearing
Question 283 1 Marks
What causes no charge when engine is running?
A
Drive belt loose
B
Shorted rectifier
C
Sticky regulator
D
Brushes not seating properly
Question 284 1 Marks
What is the function of rotor assembly?
A
Supports pre lubricated scaled bearing
B
Carriers driving pulley and cooling fan
C
Allow the current flow in one direction
D
Supports rectifier mounting plates
Question 285 1 Marks
Why it is necessary to disengage the starter pinion from fly wheel ring gear once the engine has started?
A
Prevent damage to starter motor
B
Prevent wastage of current
C
Reduce the wear on commutator
D
Increase the fuel efficiency
Question 286 1 Marks
What causes charges at high rate in the alternator?
A
Open rectifier circuit
B
Open field current
C
Voltage regulator setting too low
D
Voltage regulator setting too high
Question 287 1 Marks
Why the brushes are provided with a curvature at the bottom in the starting system?
A
Prevent wear on commutator
B
Provide more contact with commutator
C
Ensure proper heat dessipation
D
Provide ventilation to commutator
Question 288 1 Marks
What is the function of over running clutch in the starting system?
A
Protect armature from damge
B
Prevent sliding movement of pinion
C
Operate the solenoid
D
Drive the armature shaft
Question 289 1 Marks
What is the purpose of ?V? pulley in the
charging system?
A
Drive the cam shaft
B
Rotate the alternator rotor
C
Drive the crank shaft
D
Support rectifiter mounting plates
Question 290 1 Marks
What is the purpose of slot provided in the laminated cylindrical iron core of stator assembly?
A
For lubricantion
B
For fitting insulated windings
C
For easy fitting
D
Provide space for cooling
Question 291 1 Marks
What will be the result of worn teeth of ring gear in the starting system?
A
Motor running but too fast
B
Motor not running no operating sound of magentic switch
C
Starter motor running too slow
D
Starter motor running but not cranking
Question 292 1 Marks
Which type of winding is connected to the starter switch in the solenoid switch?
A
Pull in winding
B
Hold in winding
C
Compound winding
D
Primary winding
Question 293 1 Marks
What is the advantage of series winding type starter motor?
A
Produce high starting torque
B
Produce constant starting torue
C
Increase the life of armature
D
Less cost of maintance
Question 294 1 Marks
What is the material used to make diodes?
A
Mica
B
Silicon
C
Alumina foil
D
Graphite
Question 295 1 Marks
Which device used to prevent damage to the battery and other electrical accessories?
A
Voltage regulator
B
Current regulator
C
Distributor assembly
D
Alternator
Question 296 1 Marks
How the armature winding ends are connected with commutator?
A
By welding
B
By soldering
C
By riveting
D
By brazing
Question 297 1 Marks
Which type of DC starter motor generally used in automoniles?
A
Series type
B
Shunt type
C
Compound type
D
Parallel type
Question 298 1 Marks
What will be the result of loose drive pulley in the alternator?
A
Charges at high rate
B
Low voltage output from alternator
C
No change when engine running
D
Alternator noisy
Question 299 1 Marks
What is the purpose of alternator?
A
Produce more electricity at high RPM
B
Produce more electricity at low RPM
C
Produce constant electric supply at high RPM
D
Produce variable electric supply at high RPM
Question 300 1 Marks
What is the purpose of indexing pin provided in the bulb case?
A
Complete the circuit
B
Retain the bulb in the socket
C
Prevent damage to light
D
For easy identification
Question 301 1 Marks
Which type of lights provide maximum brightness in a shorter time?
A
LED light
B
LCD light
C
Halogan light
D
Neon light
Question 302 1 Marks
Which circuit provide miniature bulbs to know the working gauges?
A
Panel light circuit
B
Head light circuit
C
Parking light circuit
D
Stop light circuit
Question 303 1 Marks
What is the colour of pilot lamp provided in the vehicle?
A
Red
B
Green
C
White
D
Orange
Question 304 1 Marks
What is the expansion of LED?
A
Long electrical diodes
B
Light electronic diodes
C
Light emitting diodes
D
Limited electrical data
Question 305 1 Marks
What is the gas filled in the sealed beam head lights?
A
Oxygen gas
B
Nitrogen gas
C
Argon gas
D
Hydrogen gas
Question 306 1 Marks
What is the use of two small lamps fitted front and rear of vehicle?
A
Used for visibility
B
Provide illumination
C
Used for parking on the road
D
Question 307 1 Marks
What is the advantage of using side indicator in a vehicle?
A
Prevent accident while turning left and right
B
Provide effective illumination
C
Indicate the vehicle behind
D
Provide enough visibility
Question 308 1 Marks
What is the colour of front indicator lamps?
A
Red
B
White
C
Green
D
Orange
Question 309 1 Marks
What is the use of tail light?
A
Indication to vehicle behind
B
Indication to slowing down
C
Provide interior illumination
D
Provide enough visibility
Question 310 1 Marks
What is the use of cornering light in a vehicle?
A
Provide interior illumination
B
Highlight the blind spot during bend
C
Indicate traffic behind vehicle
D
Provide enough visibility to driver
Question 311 1 Marks
What is the use of single red lamp of 24 watts fitted at the rear?
A
Provide enough visibility
B
Give indication the traffic behind
C
Help driver to see full width of road
D
Provide interior illumination
Question 312 1 Marks
What is the purpose of dome light circuit?
A
Panel board gauges indication
B
Interior illumination
C
Used for parking vehicle on road
D
Provide enough visibility to driver
Question 313 1 Marks
Which type of head light provide 25% more light than sealed beam head lights?
A
Neon type head light
B
Halogon head light
C
LED type head light
D
LCD type head light
Question 314 1 Marks
Which lighting circuit provided with dip and dim switch?
A
Parking light circuit
B
Head light circuit
C
Panel light circuit
D
Fog light circuit
Question 315 1 Marks
Which light provide effective illumination during snowfall?
A
Head light
B
Parking light
C
Fog light
D
Stop light
Question 316 1 Marks
Which light give indication to the traffic behind the vehicle for slowing down?
A
Stop light
B
Fog light
C
Dome light
D
Head light
Question 317 1 Marks
Where the red colour indicator lamps are provided in the vehicle?
A
Front side
B
Pilot lamp
C
Side of vehicle
D
Rear side
Question 318 1 Marks
Which type of wipers are used for heavy motor vehicles?
A
Hand operated wiper
B
Vacuum operated wiper
C
Hydraulically operated wiper
D
Compressed air operated wiper
Question 319 1 Marks
Why seat belt and air bag systems are necessary in the vehicle?
A
Provide ventilation inside vehicle
B
Prevent the steering wheel from turning
C
To protect the driver and passenger
D
To track the stolen car
Question 320 1 Marks
What is the purpose of engine immobilizer?
A
Electric opening and closing of door
B
Used to operate horn relay
C
Prevent from starting the engine
D
o compensate from sun light entering vehicle
Question 321 1 Marks
What is the necessicity of wiper unit?
A
To see road and traffic clearly
B
To provide easy steering
C
To reduce effert on the steering
D
To provide balancing of vehicle
Question 322 1 Marks
Which type of horn consist electically driven air pump forces air through plastic trumpet?
A
Wind horn
B
Wind horn
C
Air horn
D
Electric horn
Question 323 1 Marks
What is the expansion of ICAT in the vehicle safety system?
A
Indian computer advanced technology
B
Inteligent computerized anti theft system
C
Inteligent computer advanced techonlogy
D
Indian combat advanced technology
Question 324 1 Marks
What is the possible cause for immobilizer antenna error?
A
ECM problem
B
Unregistered ignition key
C
Poor transponder in key
D
Blown fuse
Question 325 1 Marks
What is the expansion of GPS in vehicle safety system?
A
Global Placing Satellites
B
Global Positioning Satellites
C
General Positioning Satellites
D
Global Preventing Systems
Question 326 1 Marks
What is the advantage of multiplex network?
A
Improve vehicle safety system
B
Prevent malfunctioning of air bag system
C
Reduce system cost and weight
D
Determine vehicle tracking system
Question 327 1 Marks
Why horn produces low improper sound?
A
Cracked diaphragm
B
Fuse blown off
C
Relay points stuck up
D
Open field coil winding
Question 328 1 Marks
Which is the most commonly used wiper in all motor vehicles?
A
Electrically operated wipers
B
Hydraulically operated wipers
C
Vacuum operated wipers
D
Compressed air operated wipers
Question 329 1 Marks
What is the purpose of seat belt pre tensioners?
A
Hold the ocupant tightly in the seat
B
Detect passengers weight
C
Prevent the side way movement of seat
D
Protect the occupant from head injury
Question 330 1 Marks
What is the cause of window glass is not lifting while motor running properly?
A
Glass door channels unserviceable
B
Motor is defective
C
Window glass lifting regulator defective
D
Power window switch defective
Question 331 1 Marks
Why power windows are provided with lock out switch controlled by a driver?
A
Prevent accident
B
Provide effective operation
C
Improve easy handling
D
Prevent damage to windows
Question 332 1 Marks
How to confirm the satisfactory function of air bag system?
A
Air bag warming light come on during starting and stopping
B
Warming light on with engine running throught
C
Warning light on and flash few times and go out during starting
D
Peep sound on during starting
Question 333 1 Marks
How much is the current consumption of wind shield wiper motor?
A
2.7 to 3.4 Amps
B
2.2 to 3.2 Amps
C
1.8 to 3.2 Amps
D
3.5 to 5.2 Amps
Question 334 1 Marks
Which sensor used for safer parking of vehicle?
A
Infrared sensor
B
Proximity sensor
C
Crash sensor
D
Air bag sensor
Question 335 1 Marks
What causes horn sounds continuously even switch is in off position?
A
Fuse blown off
B
Incorrectly adjusted relay
C
Relay point stuck up
D
Low battery voltage
Question 336 1 Marks
Which device inflate the air bag in few milli seconds during vehicle collision?
A
Seat belt pre tensioners
B
Steering lock
C
GPS tracker
D
Inflator module
Question 337 1 Marks
Which system determine the vehicles location by forming a triangle with a group of four or more satallites?
A
Triangulation
B
Reflective displays
C
Telematic
D
Networking and Multiplexing
Question 338 1 Marks
What is the cause of horn does not produce any sound?
A
Relay point stuck up
B
Fuse blown off
C
Low voltage at horn terminal
D
Tone disc damaged
Question 339 1 Marks
Which part of air conditioning system absorbs moisture in the system?
A
Expansion valve
B
Receiver
C
Condenser
D
Evaporator
Question 340 1 Marks
What is the function ambient temperature sensor in the air conditioning system?
A
Monitor air temperature inside vehicle
B
Monitor air temperature outside vehicle
C
Monitor air temperature in driver cabin
D
Monitor air temperature at the exhaust
Question 341 1 Marks
What should be the high air flow rate permitted while doing performance checking in automobile AC system?
A
4 kg per min
B
6 kg per min
C
8 kg per min
D
10 kg per min
Question 342 1 Marks
What is the function of condenser?
A
Control the refrigerant flow
B
Absorbs moisture in the system
C
Cool the hot refrigerant
D
Convert refrigerant to vapour
Question 343 1 Marks
Which is not the part of servo motor assembly?
A
Gear reduction unit
B
Normal DC motor
C
Position sensor
D
Expansion valve
Question 344 1 Marks
What is the boiling point of refrigerant R-134a?
A
20.5 Degree Centigrade
B
22.0 Degree Centigrade
C
26.5 Degree Centigrade
D
27.8 Degree Centigrade
Question 345 1 Marks
Which type of flow mode is selected if outside is dusty and contaminated in car AC system?
A
Recirculation mode
B
Fresh mode
C
Heating mode
D
Defroster mode
Question 346 1 Marks
What is the function of magnetic clutch in air conditioning system?
A
Cool the hot refrigerant
B
Connect and disconnect drive to compressor
C
Absorbs moisture in the system
D
Control the refrigerant flow to evaporator
Question 347 1 Marks
Which sensor measures the actual body temperature of passengers?
A
Smog sensor
B
Sun load sensor
C
Infrared sensor
D
Interior temperature sensor
Question 348 1 Marks
What is the advantage of using servo motor in air conditioning system?
A
High speed operation possible
B
Suitable for precision control of rotation
C
Low cost of maintenance
D
Suitable to prevent vibration
Question 349 1 Marks
Which sensor causes off the outside air inlet or other odours?
A
Infrared sensor
B
Smog sensor
C
Sunload sensor
D
Temperature sensor
Question 350 1 Marks
Where the ambient temperature sensor is located in the vehicle?
A
Behind the grill
B
Rear side of engine
C
Front axle
D
Top of servo motor
Question 351 1 Marks
Which part of air conditioning system remove heat from air and transfer to the refrigerant?
A
Evaporator
B
Condenser
C
Receiver
D
Blower
Question 352 1 Marks
How much DC supply voltage required for servo motor?
A
4 V to 8 V
B
4.8 V to 6 V
C
3.5 V to 8 V
D
5V to 7.5 V
Question 353 1 Marks
Which device acts as an evaporator temperature sensing switch?
A
Thermostatic switch
B
Blower switch
C
Heater switch
D
Defroster switch
Question 354 1 Marks
Which wire of servo motor connected to power supply?
A
White
B
Yellow
C
Black
D
Red
Question 355 1 Marks
Which type of manual give details about sequence of operation of the vehicle?
A
Shop manual
B
Owners manual
C
Repair manual
D
Labour guide
Question 356 1 Marks
What is the motive of vehicle information report?
A
Provide information about vehicle registration history
B
Provide information about tracking of vehicle
C
Provide information about vehicle safety
D
Provide information about warming system
Question 357 1 Marks
What is the function of vehicle control module?
A
Control actuators of engine
B
Control engine and vehicle performance
C
Handle transmission
D
Control anti clock brake system
Question 358 1 Marks
Which type of ECU is the combination of ECM and TCM in the vehicle?
A
PCM
B
EBCM
C
BCM
D
VCM
Question 359 1 Marks
Which manual provide information regarding employment in india laws framed by state and central goverments?
A
Shop manual
B
Labour guide
C
Owners manual
D
Repair manual
Question 360 1 Marks
Which type of manual provide information about engine no, chassis no and engine capacity?
A
Shop manual
B
Labour guide
C
Repair manual
D
Owners manual
Question 361 1 Marks
What does the 3rd digit code no 9. indicate system trouble in scan tool letter codes?
A
Ignition system
B
Input/out signal and controls
C
Emission system
D
Computer system
Question 362 1 Marks
Which type of ECU control actuators of engine?
A
VCM
B
TCM
C
ECM
D
EBCM
Question 363 1 Marks
Which labour act provide information regarding accidents death, or disability?
A
Employees statate insuracne act 1948
B
Employees P.F act 1952
C
Workers compensation act 1923
D
Minimum wages act 1948
Question 364 1 Marks
What does the first unit identify in the scan tool letter code?
A
Manufacturer unique number
B
Trouble code reference system
C
Type of error
D
Specific failure
Question 365 1 Marks
Which act regulate the payment of wages to certain class of persons?
A
Payment of wages act 1936
B
Trade union act 1926
C
Minimum wages act 1948
D
Equal remuneration act 1976
Question 366 1 Marks
What does the third digit of system trouble code no.6 deals with in scan tool letter code?
A
Ignition system
B
Emision system
C
Computer system
D
Transmission system
Question 367 1 Marks
Which type of ECU control the power windows of vehicle?
A
ECM
B
EBCM
C
BCM
D
VCM