Electrical Measurements & Units Test Questions

1.

Instruments are subdivided into active and passive based on whether the output of instrument is produced by the quantity being measured simply changes the magnitude of some external power source. The pressure measuring device and the float-type petrol tank level indicator are example of

A. Active instruments

B. Passive instruments

C. Former is active instrument and later is passive instrument

D. Former is passive instrument and later is active instrument

Answer & Solution Discuss in Board

2.

Considering cost of instruments, which is a better choice, active or passive?

A. Active instruments

B. Passive instruments

C. Cost of both active and passive instruments are approximately same

D. None of these

Answer & Solution Discuss in Board

3.

In deadweight gauge, weights are added on the top of piston until the piston reaches a datum level. The datum level is known as

A. Null point, where the downward force balances the fluid pressure

B. Lowest point of the container

C. Highest level of fluid in the container

D. None of these

Answer & Solution Discuss in Board

4.

The accuracy of the deflection type instruments and of the null type instruments depends on

A. Linearity, calibration of spring

B. Calibration of spring, linearity and calibration of weights

C. Linearity and calibration of spring, calibration of weights

D. Both depends on calibration of weight

Answer & Solution Discuss in Board

5.

In terms of usage, deflection type instruments are

A. More convenient than null type instrument

B. Less convenient than null type instruments

C. Both are equally convenient

D. None of these

Answer & Solution Discuss in Board

6.

The output of an analogue instrument varies

A. Continuously and can have an infinite number of values within its range of instruments

B. In discrete steps and can have an infinite number of values within its range of instruments

C. Continuously and can have an finite number of values within its range of instruments

D. In discrete steps and can have an infinite number of values within its range of instruments

Answer & Solution Discuss in Board

7.

The microcomputer performs its computations in

A. Analogue form

B. Digital form

C. Either analogue form or digital form depending on their applications

D. None of these

Answer & Solution Discuss in Board

8.

To read and record a measurement, the indicating type instrument

A. Always requires human intervention

B. Does not requires human intervention

C. Requires human intervention only when the instrument consists of a rotating pointer moving against a scale

D. Requires human intervention only when the instrument consists of a rotating scale moving against a pointer

Answer & Solution Discuss in Board

9.

Accuracy of an measuring instrument indicates the

A. Closeness of the output reading to the true value

B. Ratio of output value to the input value

C. Change in output with each change in input

D. Degree of freedom from random errors

Answer & Solution Discuss in Board

10.

If a pressure gauge of range 0-10 bar has a quoted inaccuracy of ±1.0 % of full scale reading, then it means

A. Minimum expected error in any reading is 0.1 bar

B. Maximum expected error in any reading is 0.1 bar

C. Maximum expected error in any reading is 1 bar

D. Minimum expected error in any reading is 1 bar

Answer & Solution Discuss in Board

Practice MCQ Questions and answers on Electrical Measurements & Units Test Questions

1. Instruments are subdivided into active and passive based on whether the output of instrument is produced by the quantity being measured simply changes the magnitude of some external power source. The pressure measuring device and the float-type petrol tank level indicator are example of

Answer & Solution

2. Considering cost of instruments, which is a better choice, active or passive?

Answer & Solution

3. In deadweight gauge, weights are added on the top of piston until the piston reaches a datum level. The datum level is known as

Answer & Solution

4. The accuracy of the deflection type instruments and of the null type instruments depends on

Answer & Solution

5. In terms of usage, deflection type instruments are

Answer & Solution

6. The output of an analogue instrument varies

Answer & Solution

7. The microcomputer performs its computations in

Answer & Solution

8. To read and record a measurement, the indicating type instrument

Answer & Solution

9. Accuracy of an measuring instrument indicates the

Answer & Solution

10. If a pressure gauge of range 0-10 bar has a quoted inaccuracy of ±1.0 % of full scale reading, then it means

Answer & Solution

Read More Section(Electrical Engineering Questions)

1.

Instruments are subdivided into active and passive based on whether the output of instrument is produced by the quantity being measured simply changes the magnitude of some external power source. The pressure measuring device and the float-type petrol tank level indicator are example of

2.

Considering cost of instruments, which is a better choice, active or passive?

3.

In deadweight gauge, weights are added on the top of piston until the piston reaches a datum level. The datum level is known as

4.

The accuracy of the deflection type instruments and of the null type instruments depends on

5.

In terms of usage, deflection type instruments are

6.

The output of an analogue instrument varies

7.

The microcomputer performs its computations in

8.

To read and record a measurement, the indicating type instrument

9.

Accuracy of an measuring instrument indicates the

10.

If a pressure gauge of range 0-10 bar has a quoted inaccuracy of ±1.0 % of full scale reading, then it means