Measuring MCQ - Electrician (Set-1) with Answers

Measuring MCQ - Electrician (Set-1) with Answers

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

Answer is:

Manganin

57) Moving coil instruments has "+ve and -ve" terminals. What is the colour of "+ve" terminal in moving coil instrument ?

Answer is:

Red

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

Answer is:

Very low (practically constant) temperature coefficient of resistance

59) Normally the scale of moving iron instruments will be :

Answer is:

have a un-uniform graduated scale

60) Moving iron instruments are used to measure both A.C. and D.C. quantities. What will happen if the terminals of a moving iron instrument are interchanged in D.C. circuit ?

Answer is:

It will indicate same reading

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