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Measurement and Instrumentation

Measurement and Instrumentation
An induction wattmeter can be used for

Any of the listed here
Ac only
Both DC and AC
Dc only

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Measurement and Instrumentation
To the y input of a CRO a signal defined by 10sin100t is applied. To the x input the signal 10cos100t is fed. The gain for both x-channel and y-channel is the same. The screen shows

 an ellipse.
  a circle.
 sinisoidal.
 a straight line.

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Measurement and Instrumentation
For measurement of inductance having high value, we should use

Hay's bridge
Maxwell's bridge
Any of the listed here
Maxwell wein bridge

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Measurement and Instrumentation
Standard resistor ia made from

Nichrome
Manganin
Silver
Platinum

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Measurement and Instrumentation
A spring controlled indicating instrument has a deflection of 90deg for maximum current I. The corresponding deflection for a gravity controlled instrument is

0°
30°
90°
120°

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Measurement and Instrumentation
The power factor of a single phase load can be calculated if the instruments available are

One voltmeter, one ammeter and one wattmeter
One ammeter, one voltmeter and one energy meter
One voltmeter and one ammeter
Any of the listed here

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MORE MCQ ON Measurement and Instrumentation

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