Quiz Questions - ITI Quiz - 11-Jun-2026 03:15 PM

Question 1 1 Marks

What is the full form of the abbreviation PMMC meter?

A

Parallel Magnet Moving Coil meter

B

Position Magnet Moving Coil meter

C

Principle Magnet Moving Coil meter

D

Permanent Magnet Moving Coil meter

Question 2 1 Marks

Which type of wave is generated in Schmitt trigger circuit?

A

Sine wave

B

Square wave

C

Saw tooth wave

D

Triangular wave

Question 3 1 Marks

Which electrode controls brightness of the image on the screen of oscilloscope?

A

Anode

B

Cathode

C

Control grid

D

Focussing electrode

Question 4 1 Marks

Which parameter is measured by a multimeter?

A

Voltage

B

Energy

C

Frequency

D

Time duration

Question 5 1 Marks

Which torque is used in PMMC meter movement?

A

Low torque

B

High torque

C

Moderate torque

D

Insufficient torque

Question 6 1 Marks

Which instrument used to measure resistance, capacitance and inductance?

A

LCR bridge

B

Wein bridge

C

Kelvin bridge

D

Wheatstone bridge

Question 7 1 Marks

Find the value of shunt resistance required for 1 mA meter to extend the range and measure 10 mA (RM = 27 Ohm) ?

A

1 Ohm

B

2 Ohms

C

3 Ohms

D

4 Ohms

Question 8 1 Marks

In which arrangement the high value of resistor is connected to extend the range of voltmeter?

A

Star

B

Delta

C

Series

D

Parallel

Question 9 1 Marks

In which analog meter the battery is provided?

A

Ammeter

B

Voltmeter

C

Ohm meter

D

Watt meter

Question 10 1 Marks

Which function control in CRO, adjust the trace sharper?

A

Focus

B

Intensity

C

Time/Div trigger

D

Amplitude (V/Div)

Question 11 1 Marks

Which meter uses a moving coil for measurement?

A

LCR meter

B

PMMC meter

C

MI repulsion type

D

MI attraction type

Question 12 1 Marks

Which parameter is used in the working of moving coil meter?

A

Spring control

B

Stray magnetic fields

C

Eddy current damping

D

Permanent magnetic fields

Question 13 1 Marks

What is the advantage of using digital multimeter?

A

Accuracy

B

Linear scale

C

Easy portability

D

Logarithmic scale

Question 14 1 Marks

Which meter movement is not affected by stray magnetic fields?

A

PMMC meter

B

Thermo couple meter

C

MI meter - attraction type

D

MI meter - Repulsion type

Question 15 1 Marks

Which characteristics enable the deflection of pointer in the attraction type moving iron meter?

A

Weight of the soft iron pieces

B

Deflection is inversely proportional to current

C

Deflection is independent of current direction

D

Deflecting and controlling torques are

Question 16 1 Marks

Which control is used in repulsion type moving iron instrument to keep the pointer at zero position?

A

Spring control

B

Air damping control

C

Magnetic repulsion control

D

Magnetic attraction control

Question 17 1 Marks

Which frame is used for winding the coil of PMMC meter?

A

Steel frame

B

Wooden frame

C

Ceramic frame

D

Aluminium frame

Question 18 1 Marks

What is the purpose of damping torque in PMMC meter?

A

Control the pivot point

B

Control the jewel bearing

C

Control the magnetic field

D

Control the swinging of the coil

Question 19 1 Marks

Why the soft iron pieces in the moving iron meter is tongue shaped?

A

To generate heat

B

To damp the oscillations

C

To achieve uniformity of scale

D

To produce magnetic attraction

Question 20 1 Marks

How the sensitivity of voltmeter is determined?

A

FSD current

B

Meter coil resistance

C

Ohms per volt rating

D

Maximum voltage measurement

Question 21 1 Marks

What is the name of the procedure carried out to ensure the trustworthy standards of the measuring instrument?

A

Calibration

B

Range test

C

Re-alignment

D

Testing standards

Question 22 1 Marks

How the accuracy of amplitude and frequency measured by CRO is checked?

A

By sine wave signal

B

By function generator

C

By complex wave form

D

By built-in calibration signal

Question 23 1 Marks

How power rating is specified for transformers?

A

Watts (W)

B

Voltage (V)

C

Volt ampere (VA)

D

Horse power (HP)

Question 24 1 Marks

Which component opposes any change in current?

A

Diode

B

Resistor

C

Inductor

D

Capacitor

Question 25 1 Marks

What is the unit of inductance?

A

Joule

B

Farad

C

Henry

D

Watts

Question 26 1 Marks

Which value is equal to one picofarad?

A

106 Farad

B

1012 Farad

C

10-6 Farad

D

10-12 Farad

Question 27 1 Marks

Which factor determines the inductance value?

A

Material of the coil

B

Diameter of the coil

C

Frequency of the current

D

Current flow through the coil

Question 28 1 Marks

What is the colour code for 100 Ohm resistor?

A

Brown, black, red

B

Black, brown, black

C

Brown, black, brown

D

Brown, brown, brown

Question 29 1 Marks

How many ohms is equal to one Mega ohm?

A

10 kW

B

100 kW

C

1000 kW

D

2000 kW

Question 30 1 Marks

Which property of the capacitor stores electrical energy in electrostatic field?

A

Dielectric

B

Capacitance

C

Stray capacitance

D

Capacitive reactance

Question 31 1 Marks

Which unit is used to measure capacitance value?

A

Mho

B

Ohm

C

Farad

D

Henry

Question 32 1 Marks

What is the name of Multi-turn potentiometers?

A

Multi turn dual pots

B

Multi turn trim pots

C

Single turn trim pots

D

Single turn dual pots

Question 33 1 Marks

Which meter is used to find the exact resistance value of resistors?

A

Ammeter

B

Volt meter

C

Ohm meter

D

Watt meter

Question 34 1 Marks

What is the cause of burnt relay contacts?

A

Low contact current

B

Excessive contact current

C

Chatter during a slow release

D

Excessive number of operations

Question 35 1 Marks

At which condition the cold resistance of the low voltage lamp is measured using ohmmeter?

A

Lamp is ON at 100 Degree Centigrade

B

Lamp is ON at 320 Degree Centigrade

C

Lamp is ON at 400 Degree Centigrade

D

Lamp is OFF at room temperature

Question 36 1 Marks

What is the result of hysteresis loss in magnetic material?

A

Back emf increases

B

Eddy current decreases

C

Magnetic flux increases

D

Energy loss takes place

Question 37 1 Marks

What is the phase relationship between the applied voltage and current in the primary of a transformer with open secondary winding?

A

Voltage lags current by 45 Degree

B

Current lags voltage by 90 Degree

C

Voltage leads current by 45 Degree

D

Current leads voltage by 90 Degree

Question 38 1 Marks

What is the purpose of trimmer capacitor?

A

Coupling

B

Filtering

C

Decoupling

D

Fine tuning

Question 39 1 Marks

Find the total resistance value of 10 ohms and 20 ohms connected in parallel.

A

6.666 Ohms

B

66.66 Ohms

C

666.6 Ohms

D

6666 Ohms

Question 40 1 Marks

Find the total inductance value of two inductors 10H and 15H of connected in series.

A

05 H

B

10 H

C

15 H

D

25 H

Question 41 1 Marks

What is the power dissipated if 10mA current flows through a 10K Ohm resistor?

A

1000 milli watts

B

2000 milli watts

C

3000 milli watts

D

4000 milli watts

Question 42 1 Marks

What is the name of effect of changing current in one coil, induces EMF in nearby coil?

A

Coupling

B

Induction

C

Self induction

D

Mutual induction

Question 43 1 Marks

What is the main problem caused for severe pitting in relays?

A

Low contact current

B

Excessive contact current

C

Chatter during a slow release

D

Excessive number of operations

Question 44 1 Marks

What is the effect on the transformer operated below the rated voltage?

A

Burn out windings

B

Leads to interwinding leakage

C

Transformer heated up excessively

D

Delivers reduced secondary voltage

Question 45 1 Marks

What is the purpose of vacuum contactors in electrical panel?

A

Fast switching

B

Slow switching

C

Packet switching

D

Medium switching

Question 46 1 Marks

What is the reason for the use of contactors in control circuits?

A

Supply power to loads

B

To increase load current

C

To decrease load current

D

To protect the load from arcing

Question 47 1 Marks

Why the transformer core is made as thin laminations?

A

To minimize eddy current losses

B

To increase the hysteresis losses

C

To maximize eddy current losses

D

To increase core saturation losses

Question 48 1 Marks

Which part of the relay causes most trouble?

A

Hinges

B

Relay coil

C

Relay contacts

D

Frame and core

Question 49 1 Marks

What type of ripple filter circuit is used for large load current requirements?

A

LC filter

B

RC filter

C

Inductor Input filter

D

Capacitor Input filter

Question 50 1 Marks

How many inputs are available in the 7447 BCD-to-seven segment decoder used to drive the LED display?

A

One

B

Four

C

Seven

D

Eight

Question 51 1 Marks

What is the power supply required to operate the most standard TTL ICs properly?

A

+ 1.5v to +2.5V

B

- 1.5v to - 2.5V

C

+ 4.75v to + 5.25V

D

+ 7.5v to + 12V

Question 52 1 Marks

What is the propagation delay of the standard TTL chip?

A

5 ns

B

8 ns

C

10 ns

D

12 ns

Question 53 1 Marks

What is the power dissipation of the standard TTL chip?

A

5 mW/gate

B

10 mW/gate

C

15 mW/gate

D

20 mW/gate

Question 54 1 Marks

What is the decimal conversion number for the octal number (2374)8?

A

(1266)10

B

(1276)10

C

(1286)10

D

(1296)10

Question 55 1 Marks

What is the digital signal value for the analog signal value 6V?

A

100

B

101

C

110

D

111

Question 56 1 Marks

What is the decimal number for the binary number 0101?

A

4

B

5

C

6

D

7

Question 57 1 Marks

Which IC is used for (DEMUX) function in data transmission?

A

IC 7483

B

IC 7486

C

74 LS 138

D

74 LS 151

Question 58 1 Marks

Which circuits requires the flip - flops for their operation?

A

Amplifier circuits

B

Oscillator circuits

C

Modulator circuits

D

Memory circuits

Question 59 1 Marks

What is the use of flip - flop?

A

It stores energy

B

It stores voltage

C

It stores current

D

It stores binary information

Question 60 1 Marks

Which type of toe caps are used to avoid crushing of feet at the time of shifting equipments?

A

Steel toe caps

B

Plastic toe caps

C

Rubber toe caps

D

Leather toe caps

Question 61 1 Marks

How the gas and liquefied gases are classified

A

Class A fire

B

Class B fire

C

Class C fire

D

Class D fire

Question 62 1 Marks

Which fire extinguisher is used to put off class C type of fire?

A

Foam type

B

Jet of water

C

Dry powdered

D

Carbon-di-oxide

Question 63 1 Marks

Which fire extinguisher is used to put off class A type of fire?

A

Foam type

B

Jet of water

C

Dry powdered

D

Carbon-di-oxide

Question 64 1 Marks

What is the shape of mandatory signs?

A

Square

B

Circular

C

Triangular

D

Rectangular

Question 65 1 Marks

Which method is used for blanketing with foam to extinguish the fire?

A

Cooling

B

Starving

C

Smothering

D

Heating

Question 66 1 Marks

Which material is used for making instrument cabinets?

A

Wood

B

Plastic

C

Hard rubber

D

Sheet metal

Question 67 1 Marks

What is the shape of warning sign board?

A

Square shape

B

Circular shape

C

Triangular shape

D

Hexagonal shape

Question 68 1 Marks

Which class of fire is classified involving metals?

A

Class A

B

Class B

C

Class C

D

Class D

Question 69 1 Marks

Which step is followed for treating a person from electric shock?

A

Provide water

B

Keep the victim cold

C

Cover the victim with a coat

D

Move the victim to a ventilated place

Question 70 1 Marks

What is the shape of prohibition sign?

A

Square

B

Circular

C

Triangular

D

Rectangular

Question 71 1 Marks

Which factor influences the severity of electrical shock?

A

Very low DC voltage

B

Duration of current passing

C

Level of current in micro ampere

D

Person receives the shock

Question 72 1 Marks

Which angle is checked by the try square?

A

45 Degree

B

60 Degree

C

75 Degree

D

90 Degree

Question 73 1 Marks

What is the use of screw driver?

A

Hold the screws

B

Tighten or loosen screws

C

Tighten or loosen bolts

D

Tighten or loosen rivets

Question 74 1 Marks

Which is the maximum size of drill bit used in electrical hand drilling machine?

A

0.35 mm

B

1.5 mm

C

3.5 mm

D

6.5 mm

Question 75 1 Marks

Which tool is used for seaming the funnel like taper?

A

Vices

B

Angle steel

C

Hatchet stake

D

Blow horn stake

Question 76 1 Marks

What is the purpose of wood rasp file?

A

90 Degree corners

B

Cutting metals

C

Finishing flat edges

D

Preliminary rough work

Question 77 1 Marks

What is the first step to rescue the person in electrical contact?

A

Break the contact

B

Call the doctor

C

Switch OFF power supply

D

Pull the person from electrical contact

Question 78 1 Marks

What is the reason for electric fire?

A

Deviation

B

Open circuit

C

Overloading

D

Proper earthing

Question 79 1 Marks

Which artificial respiration method to be avoided to a person with abdomen injury?

A

Schafer's method

B

Mouth-to-nose method

C

Nose-to-mouth method

D

Mouth-to-mouth method

Question 80 1 Marks

What is the cause of injuring at the time of lifting a load?

A

Heavy load

B

Falling object

C

Object striting the load

D

Wrong lifting technique

Question 81 1 Marks

How the overlapping of excess sheet metal causing bulge at seam and edge is prevented?

A

Mallet

B

Notches

C

L - angles

D

Square stake

Question 82 1 Marks

What is the effect of electric shock at very low voltage levels (Less than 40v)?

A

Fibrillation

B

Muscles contact

C

Burning of the skin

D

Unpleasant tingling sensation

Question 83 1 Marks

Electrical conductivity of gold is

A

56%

B

67%

C

94%

D

100%

Question 84 1 Marks

What is stationary electric charges?

A

Static charges

B

Kinetic charges

C

Chemical charges

D

Electrical charges

Question 85 1 Marks

What is the unit of electric charge?

A

Volts

B

Hertz

C

Ampere

D

Coulomb

Question 86 1 Marks

Which material contains eight electrons in valency layer?

A

Insulators

B

Conductors

C

Semiconductors

D

Intrinsic semiconductors

Question 87 1 Marks

Which material is used as electrical insulator?

A

Gallium

B

Porcelain

C

Aluminium

D

Germanium

Question 88 1 Marks

Which electrical parameter opposes the flow of electrons?

A

Power

B

Voltage

C

Current

D

Resistance

Question 89 1 Marks

How the single strand wire is called?

A

Flexible wire

B

Twisted wire

C

Hook up wire

D

Multi strand wire

Question 90 1 Marks

What is the purpose of covering provided over the electrical conductor?

A

Increase current flow

B

Reduce current flow

C

Decrease voltage rating

D

Protection against weather

Question 91 1 Marks

Which cores are used in intermediate frequency transformers?

A

Steel

B

Nickel

C

Cobalt

D

Ferrite

Question 92 1 Marks

Which material conducts electricity?

A

Mica

B

Paper

C

Glass

D

Copper

Question 93 1 Marks

How many electrons are contained in coulomb of electric charge?

A

6.25 x 108 electrons

B

6.25 x 1012 electrons

C

6.25 x 1016 electrons

D

6.25 x 1018 electrons

Question 94 1 Marks

What is the percentage of conductivity of electric current in silver?

A

0.56

B

0.67

C

0.94

D

1

Question 95 1 Marks

What is the percentage of conductivity of electric current in aluminium?

A

0.22

B

0.47

C

0.56

D

0.76

Question 96 1 Marks

How the movement of electrons through a conductor in a particular direction is called?

A

Resistance

B

Inductance

C

Conductance

D

Electric current

Question 97 1 Marks

Which metal has very good conductivity to the electric current?

A

Gold

B

Copper

C

Silver

D

Aluminium

Question 98 1 Marks

Which electrical property opposes the flow of electrons?

A

Power

B

Voltage

C

Current

D

Resistance

Question 99 1 Marks

How the single strand wire is called?

A

Hook - up wire

B

Twisted wire

C

Flexible wire

D

Multistrand wire

Question 100 1 Marks

What is the percentage of conductivity of electric current in copper?

A

0.56

B

0.67

C

0.94

D

1