MCQ for ITI Electrician

1➤ Which is the golden hour for the victim injured on head risk of dying?

First 2 minutes First 10 minutesFirst 15 minutesFirst 30 minutes

2➤ Which type of occupational Health hazard is cause for infection?

Biological hazards Electrical hazardsPhysical hazardsAll of these

3➤ What is the cause for twisting defect in timber?

Improper seasoningUneven shrinkageDefective storageAll of these

4➤ Which conductors are used in distribution lines?

Insulated solid conductorsInsulated conductors Two core cableBare conductors

5➤ What is current rating factor for close excess current protection of cable?

0.811.320.921.23

6➤ What is value of resistance in open circuit

InfinityLow 0Very high

7➤ What is unit of conductance?

MhoOhm-mOhm/mOhm

8➤ What is the application of series circuit?

Fuse in circuit Shunt resistors in ammeters Voltmeter connection Electrical lamps in ohm

9➤ Which type of resistors is used for arc quenching protection in circuit breakers?

SensistorsVariastors Thermistors All of these

10➤ Which material is having negative resistance coefficient property?

Mica Maganin EurekaCopper

11➤ Which is the diamagnetic substance?

Air WaterSteelPlatinum

12➤ Which material is the paramagnetic substance?

CopperCleat wire GraphiteBismuth

13➤ Which factors affects the polarity of the electromagnet?

Lenght of the coilDirection of current Strenght of magnetic fieldAll of these

14➤ What is total inductance 2H and 8H when connected in series?

10H1.6H3H16H

15➤ Which type of capacitors are used in RF coupling circuit?

ElectrolyticTantalumCeramic Monolithic

16➤ What is cause for changing the permeability

Flux densityLenghtField intensify MMF

17➤ What is the function of dielectric insulator in capaciitor?

Protect from short circuit between the plates Increases the strength of capacitance Prevents any current flow between platesHelps to hold the change in capacitor for long period

18➤ What is the unit of susceptance

Mho OhmHenry Farad

19➤ Which quantity is rotating at a constant angular velocity

Scalar quantity Algebraic quantityPhasor quantity All of these

20➤ What is the power factor if one of the wattmeter gives negative reading in two wattmeter method?

Less than 0.50 0.5Unity

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