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Measurement and Instrumentation

Measurement and Instrumentation
The best type of meter moment is ______ moment.

D'Arsonval
Dynamometer
None of the listed here
Iron- vane

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Measurement and Instrumentation
A wheatstone bridge cannot be used for precision measurements because errors are introduced into on account of

 Resistance of connecting leads.
 Contact resistance.
 Thermoelectric emfs.
 All of above.

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Measurement and Instrumentation
A power factor meter has

None of the listed here
One current circuit and two pressure circuits
One current circuit and one pressure circuit
Two current circuit and one pressure circuit

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Measurement and Instrumentation
The circuit in figure is used to measure the power consumed by the load. The current coil and the voltage coil of the wattmeter have 0.02 Ω and 1000 Ω resistance respectively. The measured power compared to the load power will be

 0.2% less.
 0.2% more.
 0.4 more.
 0.4% less.

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Measurement and Instrumentation
A spring-controlled moving iron voltmeter draws a current of 1 mA for full scale value of 100V. If it draws a current of 0.5 mA, the meter reading is

 200 V.
 100 V.
 25 V.
 50 V.

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Measurement and Instrumentation
Electrostatic instruments are used as

Wattmeter only
Voltmeters only
Ammeters only
Both ammeter and voltmeter

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MORE MCQ ON Measurement and Instrumentation

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