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Measurement and Instrumentation

Measurement and Instrumentation
The rectifier instrument is not free from

Wave shape error
Frequency error
All of the listed here
Temperature error

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Measurement and Instrumentation
Which wave has the least form factor?

Square wave
Sine wave
Triangular wave
Rectangular wave

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Measurement and Instrumentation
For measuring an AC voltage by an AC potentiometer it is desirable that the supply for the potentiometer is taken from

 The same source as the unknown voltage.
 Any of above.
 A battery.
 A source other than the source of unknown voltage.

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Measurement and Instrumentation
Which of the following is a variable displacement transducer?

 synchros
None of these
 tachometer
 potentiometer

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

Both A and B
Electrostatic coupling
None of these
Electromagnetic coupling

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Measurement and Instrumentation
A sinusoidal signal waveform, when observed on an oscilloscope, has a peak to peak amplitude of 6 cm. If the vertical sensitivity setting is 5 v/cm, then rms value of the voltage will be

 11.1 V.
 12.6 V.
 15 V.
  10.6 V.

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MORE MCQ ON Measurement and Instrumentation

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