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Measurement and Instrumentation

Measurement and Instrumentation
The operating voltage of a megger is about

40 V
12 V
100 V
6 V

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Measurement and Instrumentation
The controlling torque of an indicating instrument ______ as the deflection of the moving system increases.

Increases
Decreases
Remains same
None of the listed here

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Measurement and Instrumentation
A wattmeter reads 30.34 W. The absolute error in the measurement is - 2.22 W. What is the true value of power?

 25.45 W.
 28.12 W.
 32.56 W .
None of these

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Measurement and Instrumentation
The pressure coil of a wattmeter should be connected on the supply side of the current coil when

Load impedance is low
Supply voltage is low
None of these
Load impedance is high

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Measurement and Instrumentation
Swamping resistance is used to compensate

 error due to strong magnetic field.
 error due to temperature true variations.
 none of these.
 both A and B.

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Measurement and Instrumentation
PMMC Instrument can be used for

Both AC and DC
None of the listed here
AC work only
DC work only

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MORE MCQ ON Measurement and Instrumentation

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