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Measurement and Instrumentation

Measurement and Instrumentation
Standardization of potentiometer is done in order that, they become

 accurate.
 precise.
 accurate and direct reading.
 accurate and precise.

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Measurement and Instrumentation
The errors mainly caused by human mistakes are

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

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Measurement and Instrumentation
A moving iron ammeter produces a full scale torque of 240 μNm with a deflection of 120° at a current of 10 A. The rate of change of self induction (μH/radian) of the instrument at full scale is

 4.8 μH/radian.
 12.0 μH/radian.
 114.6 μH/radian.
 2.0 μH/radian.

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Measurement and Instrumentation
Relative permittivity can be measured by _______ bridge

 Desautys.
 Hays.
 Schering.
 Wheatstones.

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Measurement and Instrumentation
When a potentiometer is used for measurement of voltage of an unknown source, the power consumed in the circuit of the unknown source under null condition is

 ideally zero.
 high.
 very high.
 small.

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Measurement and Instrumentation
The effect of stray magnetic fields on the actuating torque of a portable instrument is maximum when the operating field of the instrument and stray fields are

 perpendicular.
 parallel.
 inclined at 60o.
 inclined at 30o.

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MORE MCQ ON Measurement and Instrumentation

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