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Measurement and Instrumentation

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

None of the listed here
Decreases
Increases
Remains same

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Measurement and Instrumentation
An induction wattmeter can be used for

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

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Measurement and Instrumentation
The transfer instrument which is used for standardization of a polar type AC potentiometer is

 a dynamometer instrument.
 a moving coil instrument.
 an electrostatic instrument.
 a thermal instrument.

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Measurement and Instrumentation
A galvanometer has

Fluid friction damping
Spring coil damping
Air friction damping
Eddy current damping

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Measurement and Instrumentation
To increase Q factor of a coil, the wire should be

 long.
 thick.
 long and thin.
 thin.

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Measurement and Instrumentation
In a single phase energy meter, braking torque is provided by

Fluid friction
Permanent magnet
Air friction
None of the listed here

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MORE MCQ ON Measurement and Instrumentation

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