Which is the displacement transducer with excellent sensitivity, linearity and resolution? - Measurements and Instrumentation

Electronics and Communication Engineering (ECE) : Measurements and Instrumentation - Quiz(MCQ)

Which is the displacement transducer with excellent sensitivity, linearity and resolution?

A)

LVDT

B)

Strain gauge

C)

Absolute encoder

D)

Incremental encoder

Correct Answer : Option (A) : LVDT

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In measurements using strain gauge, the dummy strain gauge is used to

A)

compensate for error in voltmeter

B)

compensate for change in temperature

C)

compensate for resistance of strain gauge

D)

compensate for error due to change in voltage of battery

Correct Answer : compensate for change in temperature

A CT is used to feed current coils of wattmeter, energy meter, power factor meter and an ammeter. Then

A)

all coils are in parallel

B)

the coils are in series-parallel

C)

all the coils are in series

D)

None of the above

Correct Answer : all the coils are in series

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B)

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D)

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