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Measurement and Instrumentation

Measurement and Instrumentation
The errors introduced by an instrument fall in which category ?

 Gross errors
 Environmental errors
 Systematic errors
 Random errors

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Measurement and Instrumentation
The pressure coil of a wattmeter should be connected on the supply side of the current coil when

Load impedance is high
Load impedance is low
Supply voltage is low
None of these

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

None of these
 tachometer
 potentiometer
 synchros

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Measurement and Instrumentation
A metal strain gauge has a gauge factor of two. Its nominal resistance is 120 ohms. If it undergoes a strain of 10-5, the value of change of resistance in response to the strain is

 0.0012 Ohm.
 0.0024 Ohm.
 120 Ohm.
 240 Ohm.

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Measurement and Instrumentation
The errors mainly caused by human mistakes are

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

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Measurement and Instrumentation
For measurement of mutual inductance we can use

Maxwell's bridge
Anderson bridge
Any of the listed here
Heavyside bridge

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MORE MCQ ON Measurement and Instrumentation

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