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Measurement and Instrumentation

Measurement and Instrumentation
Dynamic errors are caused by

 environmental error
 human error
 observational error
 instrument not responding fast

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Measurement and Instrumentation
Ratio of readings of two wattmeter connected to measure power in a balanced 3-phase load is 5:3 and the load is inductive. The power factor at load is

 0.6 lead.
 0.917 lead.
 0.6 lag.
 0.917 lag.

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Measurement and Instrumentation
For measuring an AC voltage by an AC potentiometer it is desirable that the supply for the potentiometer is taken from

 A source other than the source of unknown voltage.
 Any of above.
 The same source as the unknown voltage.
 A battery.

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

 nucleus.
  Anemometer.
 Venturimeter.
 Orifice.

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Measurement and Instrumentation
Which of the quantity consists of unit as Pascal ?

 Temperature
 Force
 Pressure
 Impulse

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Measurement and Instrumentation
The scale of hot wire ammeter is

 Absloute linear.
  Non Linear.
 Linear.
 Cramped.

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MORE MCQ ON Measurement and Instrumentation

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