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Measurement and Instrumentation

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

Logarithmic scale
Linear scale
Square-law scale
Exponential scale

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Measurement and Instrumentation
One single phase wattmeter operating on 230V and 5A for 5 hours makes 1940 revolutions. Meter constant in revolutions is 400. What is the power factor of the land?

0.73
1
0.84
0.65

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Measurement and Instrumentation
The resistance of a circuit is found by measuring current flowing and the power fed into the circuit. If the limiting errors in the measurement of power and current are ± 1.5% and ± 1.0% respectively, the limiting error in the measurement of resistance

 ± 3.5%
 ± 1%
 ± 2.5%
 ± 1.5%

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Measurement and Instrumentation
Piezoelectric effect is carried out in

  m derived.
  constant k prototype.
  crystal filter.
  composite filter.

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Measurement and Instrumentation
For the AC bridge circuit shown in figure at balance the value of Rd will be

 (Ra/Rc).Rb.
 (Rc/Rb).Ra.
 (Rb/Rc).Ra.
 (Rc/Ra).Rb.

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Measurement and Instrumentation
Relative error is same as

 true error.
None of these
 absolute error.
 ratio of absolute error and true value.

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MORE MCQ ON Measurement and Instrumentation

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