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Measurement and Instrumentation

Measurement and Instrumentation
An Ohmmeter is a

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

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Measurement and Instrumentation
The errors mainly caused by human mistakes are

 observational error.
 systematic error.
  gross error.
 instrumental error.

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Measurement and Instrumentation
The coil of a moving iron instrument has a resistance of 500 ohm and inductance of 1 H. It reads 250 V when a 250 V DC is applied. It series resistance is 2000 ohms its reading when fed by 250 V, 50 Hz AC will be

 250 V.
 252 V.
 248 V.
 260 V.

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Measurement and Instrumentation
Wien bridge is useful for measuring

Medium frequency
Very high frequency
Low frequency
High frequency

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Measurement and Instrumentation
Piezoelectric effect is carried out in

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

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Measurement and Instrumentation
A slide wire potentiometer has 10 wires of 1 m each. With the help of a standard voltage source of 1.018 V it is standardised by keeping the jockey at 101.8 cm. If the resistance of the potentiometer wires is 1000 ohm, then the value of the working current will be

 0.5 mA.
 1mA.
 10 mA.
 100 mA.

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MORE MCQ ON Measurement and Instrumentation

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