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Measurement and Instrumentation

Measurement and Instrumentation
A dynamometer wattmeter can be used for

Any of the listed here
Both DC and AC
DC only
AC only

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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 lag.
 0.6 lead.
 0.917 lead.
 0.917 lag.

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Measurement and Instrumentation
The full-scale deflection current of an ammeter is 1 mA and its internal resistance is 100°hm. If this meter is to have full deflection at 5A, what is the value of the shunt resistance to be used?

1 Ohm
1/49.99 ohms
49.99 Ohms
2 Ohms

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Measurement and Instrumentation
Attraction and repulsion type instruments are the two different types of which instrument ?

 Multipliers.
 Dynamo-meter type.
 Induction type.
  Moving iron type.

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Measurement and Instrumentation
Two voltmeters have the same range 0-400V. The internal impedance are 30,000 Ohms and 20,000 Ohms. If they are connected in series and 600V be applied across them, the readings are

400V and 200V
300V each
One of the meters out of the range and other 100V
360V and 240V

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Measurement and Instrumentation
The watt hour meter is ______ instrument.

A transfer
An integrating
A recording
An indicating

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