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Measurement and Instrumentation

Measurement and Instrumentation
The scale of a rectifier instrument is

Either linear or non linear
None of the listed here
Non-linear
Linear

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Measurement and Instrumentation
What is the expression for momentum?

 force × displacement
 change of velocity / time
 mass × velocity
 mass × acceleration

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Measurement and Instrumentation
A sampling wattmeter is used to measure the average power of a load. The peak to peak voltage of a square wave is 10 V and the current is triangular wave of 5 Amp P-P as shown in the figure. The period is 20 ms. The reading in W will be

 50 W.
  0 W.
 100 W.
 25 W.

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Measurement and Instrumentation
The two pressure coils of a single phase power factor meter have

None of these
The same number of turns but different dimensions
The same dimension but different number of turns
The same dimensions and the same number of turns

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Measurement and Instrumentation
In a moving coil instrument, the deflecting torque is proportional to

Current
Squareroot of the current
Sine of the measurand
Square of the current

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Measurement and Instrumentation
The high torque to weight ratio in an analog indicating instrument indicates

 high friction loss.
 nothing related to friction loss.
 low friction loss.
 none of these.

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MORE MCQ ON Measurement and Instrumentation

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