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Measurement and Instrumentation

Measurement and Instrumentation
In a single phase energy meter, braking torque is provided by

Air friction
None of the listed here
Permanent magnet
Fluid friction

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Measurement and Instrumentation
An oscilloscope indicates

Peak to peak value of voltage
RMS value
Average value
DC value of voltage

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Measurement and Instrumentation
PMMC Instrument can be used for

AC work only
Both AC and DC
DC work only
None of the listed here

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Measurement and Instrumentation
The use of thermocouple meters for AC measurement leads to scale which is

 logarithmic.
 expontial.
 linear.
 square law.

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Measurement and Instrumentation
In figure Z1 = 200∠60° ohm. Z2 = 400∠-90° ohm, Z3 = 300∠0° ohm. Then Z4 for bridge to be balanced is

 600∠-150° ohm.
 300∠90° ohm.
 400∠-90° ohm.
 150∠30° ohm.

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Measurement and Instrumentation
The pointer of an indicating instrument should be

Either light or heavy
None of the listed here
Very heavy
Very light

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MORE MCQ ON Measurement and Instrumentation

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