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Measurement and Instrumentation

Measurement and Instrumentation
Induction type single phase energy meters measure electric energy in

Wh
kW
VAR
kWh

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Measurement and Instrumentation
A galvanometer has

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

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Measurement and Instrumentation
An electrodynamic meter can be used to measure

 AC volatge.
 DC voltage.
  both AC and DC voltage.
 DC current.

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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

 0.5.
 none of above.
 1.
 0.

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Measurement and Instrumentation
A single phase load is connected between R and Y terminals of a 415 V, symmetrical, 3-phase, 4 wire system with phase sequence RYB. A wattmeter is connected in the system as shown in figure. The power factor of the load is 0.8 lagging. The wattmeter will read

 + 597 W.
 + 795 W.
  - 597 W.
 - 795 W.

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Measurement and Instrumentation
For measurement of mutual inductance we can use

Maxwell's bridge
Any of the listed here
Heavyside bridge
Anderson bridge

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MORE MCQ ON Measurement and Instrumentation

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