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MCQ ON MEASURING INSTRUMENT PAGE - 3

1.

Which measuring instrument is an indicating instrument ?

Answer/ Hint      

Answer : C

Explanation :

2.

Which type of control force is an indicating instrument, which can be kept in any position?

Answer/ Hint      

Answer : B

Explanation :

3.

The meter installed at your house to measure electrical energy is an example of …

Answer/ Hint      

Answer : C

Explanation :

4.

Which is the absolute instrument?

Answer/ Hint      

Answer : D

Explanation :

5.

Watt-hour meter is classified as a ..

Answer/ Hint      

Answer : D

Explanation :

6.

Phosphor bronze alloy is used for springs in indicating instruments because the alloy has…

Answer/ Hint      

Answer : B

Explanation :

7.

When an instrument is using gravity control, it can read correctly…

Answer/ Hint      

Answer : B

Explanation :

8.

Which of the following materials is preferred for permanent magnet used in the instrument?

Answer/ Hint      

Answer : D

Explanation :

9.

The precision of measurement depends on the range of the instrument s\elected. What is he general rule for selection of range of instrument? Measured value should be …

Answer/ Hint      

Answer : A

Explanation :

10.

As a general rule before connecting the meters to the circuit, we should see whether pointer is at zero or not. This rule is not applicable in case of ….

 

Answer/ Hint      

Answer : D

Explanation :

11.

A megger is exclusively designed for measuring

Answer/ Hint      

Answer : A

Explanation :

12.

Which instrument is used for measuring the medium resistances directly?

Answer/ Hint      

Answer : C

Explanation :

13.

A current of approximately 5 A and 10 A has to be measured in a circuit . Which one of the following ammeters will you use to have a more accurate reading for both the values?

Answer/ Hint      

Answer : A

Explanation :

14.

Ammeters used for current measurements in circuits with short overload time, differes from other application. Ammeters used in short overload time circuit have..

Answer/ Hint      

Answer : B

Explanation :

15.

Moving coil instrument works on the effect of ..

Answer/ Hint      

Answer : B

Explanation :

16.

Which of the following electrical quantities can you measure with a a moving coil instrument ?

Answer/ Hint      

Answer : A

Explanation :

17.

Which part of the PMMC instrument produces eddy current damping ?

Answer/ Hint      

Answer : D

Explanation :

18.

Which material is used for shunt and multpliler to extend the range of moving coil meters?

Answer/ Hint      

Answer : C

Explanation :

19.

Moving coil instruments has +ve and –ve terminals . What is the colour of +ve terminal in moving coil instrument?

Answer/ Hint      

Answer : C

Explanation :

20.

Shunts and multipliers used in moving coil instruments are made up of manganin. The reason for using the above metal is that it has…

Answer/ Hint      

Answer : D

Explanation :

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