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Measurement and Instrumentation

Measurement and Instrumentation
A null type instrument as compared to a deflected type instrument has

 a higher accuracy.
 a faster response.
 a lower sensitivity.
All of these

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Measurement and Instrumentation
The current coil of a wattmeter is connected to the CT of R-phase. The potential coil is connected across Y and B phases. The wattmeter measures

Reactive power of R phase
Active power in R phase
Active power of Y phase
Power proportional to 3 phase power if the load is balanced

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Measurement and Instrumentation
The difference between the measured value and the true value is called

 relative error
 gross error
 absolute error
 probable error

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Measurement and Instrumentation
A galvanometer has

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

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Measurement and Instrumentation
For measurement of inductance having high value, we should use

Maxwell's bridge
Hay's bridge
Any of the listed here
Maxwell wein bridge

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Measurement and Instrumentation
A rectifier type instrument is connected to 100VDC and is operated in the DC measuring module reads

50V
111V
90V
100V

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MORE MCQ ON Measurement and Instrumentation

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