Measuring MCQ - Electrician (Set-1) with Answers

Measuring MCQ - Electrician (Set-1) with Answers

61) Instruments which must not be used in the circuit, when the power is ON are :

Answer is:

ohm meter and megger

62) A house has 4 kW connected loads and is fed by single phase supply. What range energy meter is recommended for the house ?

Answer is:

30 amperes

63) In an induction type energy meter, the speed of rotation of the aluminium disc is proportional to the :

Answer is:

the current in the current coil and voltage in the pressure coil

64) A 3 phase 3 element energy meter of 415 V, 50Hz has its pressure coil rated for

Answer is:

415 volts

65) You are testing an energy meter of 240 volts, 50 Hz 5 amperes, 750 revolutions per kWh for its performance with some load. When the disc rotates 100 revolutions in 10 minutes, what is the energy supplied ?

Answer is:

0.133 kWh

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