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Measurement and Instrumentation

Measurement and Instrumentation
PMMC Instrument can be used for

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

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Measurement and Instrumentation
Which instrument has identical calibration for ac as well as dc values?

Hot wire type
Induction type
Moving coil type
Moving iron type

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Measurement and Instrumentation
In a wheatstone bridge, a change of 6 Ω in the unknown arm of bridge is required to produce a change in deflection of 2.4 mm of the galvanometer. The sensitivity is

 2.5 mm/Ω
 0.4 mm/Ω
 5.0 mm/Ω
 0.8 mm/Ω

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Measurement and Instrumentation
The resistance in the circuit of the moving coil of a dynamometer wattmeter should be

High
None of the listed here
Low
Almost zero

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

 thin.
 thick.
 long and thin.
 long.

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Measurement and Instrumentation
In a dynamometer wattmeter, the moving coil is the

Current coil
Current coil and potential coil
None of the listed here
Potential coil

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MORE MCQ ON Measurement and Instrumentation

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