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Measurement and Instrumentation

Measurement and Instrumentation
Which of the two have same dimensions?

None of these
 Angular velocity and angular frequency
 Force and strain
 Force and stress

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Measurement and Instrumentation
A set of independent current measurements taken by four observers was recorded as : 117.02 mA, 117.11 mA, 117.08 mA and 117.03 mA. What is the range of error ?

 ± 0.065
 ± 0.056
 ± 0.045
 ± 0.054

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Measurement and Instrumentation
For measurement of high direct voltage, one would use _____ voltmeter.

Hot wire
PMMC
Moving iron
Electrostatic

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Measurement and Instrumentation
Wagner earthing device is used to eliminate errors due to

Electromagnetic coupling
Electrostatic coupling
None of these
Both A and B

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Measurement and Instrumentation
An average reading digital multimeter reads 10 V when fed a triangular wave, symmetric about the axis. For the same input, an rms reading meter will read

 10.
  10√3.
 20√3.
 20.

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Measurement and Instrumentation
An Ohmmeter is a

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

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