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Measurement and Instrumentation
A moving iron instrument can be used for
DC only
AC only
None of the listed here
Both DC& AC
DC only
AC only
None of the listed here
Both DC& AC
Answer
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Measurement and Instrumentation
If two meters X and Y require 40 mA and 50 mA respectively, to give full scale deflection, then
Both X and Y are equally sensitive.
It would not be possible to assess the sensitivity on the basis of the given data.
X is more sensitive.
Y is more sensitive.
Both X and Y are equally sensitive.
It would not be possible to assess the sensitivity on the basis of the given data.
X is more sensitive.
Y is more sensitive.
Answer
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Measurement and Instrumentation
For measuring a very high resistance we should use
None of the listed here
Kelvin's double bridge
Megger
Wheat stone bridge
None of the listed here
Kelvin's double bridge
Megger
Wheat stone bridge
Answer
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Measurement and Instrumentation
An oscilloscope indicates
DC value of voltage
Peak to peak value of voltage
Average value
RMS value
DC value of voltage
Peak to peak value of voltage
Average value
RMS value
Answer
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Measurement and Instrumentation
In a moving iron meter, the deflecting torque is proportional to
Squareroot of the measurand
Square of the current through the coil
Sine of the measurand
Current through the coil
Squareroot of the measurand
Square of the current through the coil
Sine of the measurand
Current through the coil
Answer
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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 and one ammeter
One ammeter, one voltmeter and one energy meter
Any of the listed here
One voltmeter, one ammeter and one wattmeter
One voltmeter and one ammeter
One ammeter, one voltmeter and one energy meter
Any of the listed here
One voltmeter, one ammeter and one wattmeter
Answer
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