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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

 none of above.
 0.
 1.
 0.5.

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

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

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Measurement and Instrumentation
In flux meter, the controlling torque is produced by

 spring.
 weight attached to the moving coil.
 not provided at all.
 crossed coil mechanism.

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Measurement and Instrumentation
Which of the following is a variable displacement transducer?

 synchros
None of these
 tachometer
 potentiometer

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Measurement and Instrumentation
Direct method is used to measure

Voltage
Temperature
Pressure
Length

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Measurement and Instrumentation
A voltmeter using thermocouple measures

 Peak value.
 Average value.
  rms value.
 Peak to peak value.

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