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Measurement and Instrumentation

Measurement and Instrumentation
If the instrument is to have a wide range, the instrument should have

Exponential scale
Linear scale
Logarithmic scale
Square-law scale

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Measurement and Instrumentation
PMMC Instrument can be used for

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

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Measurement and Instrumentation
Purely mechanical instrument cannot be used for dynamic measurements because they have

 higher response time.
All of these
 large time constant.
 high inertia.

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Measurement and Instrumentation
It is found that 10A current passes through a resistor of 10°hms. The resistor has 5% tolerance . The error in measurement of current can be as high as 5%. What is max error in measurement of power, calculated from measured value of I and the nominal value of resistor?

150W
100W
200W
50W

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Measurement and Instrumentation
Which of the following devices may be used for extending the range of instruments?

Current transformers
Potential transformers
All of the listed here
Shunt

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Measurement and Instrumentation
In flux meter, the controlling torque is produced by

 crossed coil mechanism.
 not provided at all.
 weight attached to the moving coil.
 spring.

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MORE MCQ ON Measurement and Instrumentation

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