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Measurement and Instrumentation

Measurement and Instrumentation
In two wattmeter method of power measurement if the total power is measured by one wattmeter only then power factor of the system is

 0.
 0.5.
 1.
 none of above.

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

 thin.
 long.
 long and thin.
 thick.

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Measurement and Instrumentation
Basically potential meter is a device for

Comparing two currents
Measuring a current
Measuring a voltage
Comparing two voltages

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Measurement and Instrumentation
_______ is used to measure the flow of air around aeroplane.

 nucleus.
 Venturimeter.
  Anemometer.
 Orifice.

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Measurement and Instrumentation
Consider the following statements : In a measuring instrument, 1. Linearity is more important than sensitivity. 2. High precision indicates high accuracy 3. Accuracy cannot be better than resolution. Of these statements

 1 and 3 are correct
 1 and 2 are correct
 1, 2 and 3 are correct
 2 and 3 are correct

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Measurement and Instrumentation
A galvanometer has

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

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MORE MCQ ON Measurement and Instrumentation

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