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Measurement and Instrumentation

Measurement and Instrumentation
A dynamometer wattmeter can be used for

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

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Measurement and Instrumentation
An Ohmmeter is a

Dynamometer instrument
None of the listed here
Moving coil instrument
Moving iron instrument

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Measurement and Instrumentation
The pointer of an indicating instrument is generally made of _______

Aluminium
Silver
Copper
Soft steel

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Measurement and Instrumentation
The expected value of the voltage across a resistor is 80 V, and the measured value is 79 V. What is the percentage error and relative accuracy of the measurement ?

 1.5% & 99%
 1.5% & 98.75%
 1.25% & 98.75%
 1.25% & 98.25%

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Measurement and Instrumentation
The resistance of a circuit is measured from the relation R= P/I2, where P is the power fed into the circuit and I is the current flowing through it. If the limiting errors in the measurement of power and current are respectively ± 1.0% and ± 1.0%, then what will be the limiting error in measurement of resistance ?

 ±0.5%
 ±3.5%
 ± 3.0%
 ± 1.5%

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Measurement and Instrumentation
_______ is used to measure the flow of air around aeroplane.

 nucleus.
 Venturimeter.
 Orifice.
  Anemometer.

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MORE MCQ ON Measurement and Instrumentation

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