Electrical Measurements MCQ

Welcome to your Electrical Measurements MCQ

Which of the quantity consists of SI unit as Candela?

Velocity

Impulse

Luminous intensity

Force

None

What is the name of physical quantities which are independent of each other?

Fundamental quantity

Derived quantity

Numerical quantity

None of the above

None

Metric System also called by another name?

CGS system

MKS system

None of the above

None

Which of the two have same dimensions?

Force and strain

Angular velocity & angular frequency

Force & stress

None of the above

None

What is the expression for acceleration?

Mass x Velocity

Change in Velocity / Time

Mass x Acceleration

Force x Displacement

None

Resistance of a VARISTOR varies with

Current

Voltage

Temperature

Both Voltage and Temperature

None

Which of the following method of measurement does a bridge circuit uses?

relative

comparison

absolute

differential

None

What is the most popular method for measuring low resistance?

ducter ohmmeter method

kelvin double bridge method

ammeter-voltmeter method

potentiometer method

None

Null type recorders are

LVDT recorders

Potentiometric recorders

Bridge recorders

Any one of the above

None

10.

The windings of a C.T. are

tied together

shorted

wound over one another

grounded

None

11.

Which of the following determines the rate of measurement cycles?

Multivibrator

Oscillator

Oscilloscope

Amplifier

None

12.

Which of the following determines light intensity in a CRT?

Current

Fluorescent screen

Voltage

Momentum of electrons

None

13.

Which of the following is the main function of auxiliary equipment?

Ramp response

Unit step response

Non-linear response

Linear response

None

14.

Which of the following is the main objective of process control?

To control electrical parameters

To control optical parameters

To control physical parameters

To control mechanical parameters

None

15.

Does an electronic energy meter make use of a particular thing?

Transformer

CRO

Multimeter

None

16.

What is the function of a multiplier?

It multiplies the voltage and current

Divides the alternating voltage and current

Supplies instantaneous voltage and current

Multiplies alternating voltage and current

None

17.

What is the power requirements for electrical transducers?

Infinite

Zero

Minimum

Maximum

None

18.

Swamping resistance is used to compensate

Error due to temperature true variations

Error due to strong magnetic field.

Both A and B

None of these

None

19.

The chemical effect of current is used in

D.C ampere hour meter

D.C ammeter

D.C energy meter

None of the above

None

20.

The high torque to weight ratio in an analog indicating instrument indicates

Low friction loss

High friction loss

Nothing related to friction loss

None of these

None

21.

The internal resistance of a milli-ammeter must be very low for

High sensitivity

High accuracy

High precision

Minimum effect on the current in the circuit

None

22.

Is the potentiometer method of DC voltage measurement more accurate than direct measurement using a voltmeter? Why?

It does not load the circuit at all

It loads the circuit moderately

It uses centre zero galvanometer instead of voltmeter

It loads the circuit to maximum extent

None

23.

Relative error is same as

Ratio of absolute error and true value

Absolute error

True error

None of the above

None

24.

Which of the following is a variable displacement transducer?

Tachometer

Potentiometer

Synchros

None of the above

None

25.

Piezoelectric effect is carried out in

Composite filter

Crystal filter

m derived

Constant k prototype

None

1 out of 25

Electrical Measurements MCQ

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