Quiz Questions

Question 1 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 2 1 Marks

What is the working principle of alternator?

A

Ohms law

B

Law of resistance

C

Electromagnetic induction

D

Lenz's law

Question 3 1 Marks

What is the material used to make diodes?

A

Mica

B

Silicon

C

Alumina foil

D

Graphite

Question 4 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 5 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 6 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 7 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 8 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 9 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 10 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 11 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 12 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 13 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 14 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 15 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 16 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 17 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 18 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 19 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 20 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

What is the purpose of ?V? pulley in the charging system?