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Measurement and Instrumentation - Interview Questions and Answers

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36. The function of shunt in an ammeter is to
A. by pass the current
B. increase the sensitivity of the ammeter
C. increase the resistance of ammeter
D. none of the above
Explanation:
37. The resistance in the circuit of the moving coil of a dynamometer wattmeter should be
A. almost zero
B. low
C. high
D. none of the above
Explanation:
38. The multiplier and the meter coil in a voltmeter are in
A. series
B. parallel
C. series-parallel
D. none of the above
Explanation:
39. In a meggar controlling torque is provided by
A. spring
B. gravity
C. coil
D. eddy current
Explanation:
40. The pressure coil of a wattmeter should be connected on the supply side of the current coil when
A. load impedance is high
B. load impedance is low
C. supply voltage is low
D. none of the above
Explanation:
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