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Measurement and Instrumentation

Measurement and Instrumentation
Induction type single phase energy meters measure electric energy in

kWh
kW
Wh
VAR

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Measurement and Instrumentation
The range of a moving iron ac ammeter is extended by

A multiplier
A shunt
None of the listed here
Changing number of turns of operating coil

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Measurement and Instrumentation
A permanent magnet moving coil ammeter is connected in 50 Hz a. c. Circuit in which 5A current is flowing. The meter will read

5 A
None of the listed here
0 A
2.5 A

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Measurement and Instrumentation
The current coil of a wattmeter is connected to the CT of R-phase. The potential coil is connected across Y and B phases. The wattmeter measures

Power proportional to 3 phase power if the load is balanced
Active power of Y phase
Active power in R phase
Reactive power of R phase

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Measurement and Instrumentation
A dynamometer wattmeter can be used for

Any of the listed here
AC only
Both DC and AC
DC only

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Measurement and Instrumentation
Which of the following meters has a linear scale?

Thermocouple meter
Hot wore meter
Moving iron meter
Moving coil meter

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MORE MCQ ON Measurement and Instrumentation

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