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Measurement and Instrumentation

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

 Environmental errors
 Systematic errors
 Gross errors
 Random errors

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Measurement and Instrumentation
A 0 - 200 V voltmeter has a guaranteed accuracy of 1% of full scale reading. The voltage measured by this instrument is 50 V. What is the limiting error?

 5%
 2%
 3%
 4%

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Measurement and Instrumentation
No eddy current and hysteresis losses occur in

Moving iron instruments
Electrodynamo meter instruments
PMMC instruments
Electrostatic instruments

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Measurement and Instrumentation
The meter constant of a single phase 240 V induction watthour meter is 400 revolutions per KWh. The speed of the meter disc for a current of 10 Amperes of 0.8 p.f lagging will be

  12.8 rpm.
 21.1 rpm.
 16.02 rpm.
 18.2 rpm.

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Measurement and Instrumentation
In a CRO which of following is not a part of electron gun?

 Accelerating anode
 Grid
  X-Y plates
 Cathode

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Measurement and Instrumentation
The adjustment of position of shading bands, in an energy meter is done to provide

Breaking torque
None of the listed here
Creep compensation
Friction compensation

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MORE MCQ ON Measurement and Instrumentation

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