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Electronics and Communication Engineering - Measurements and Instrumentation

Exercise : Measurements and Instrumentation - Section 8
36.
For measuring current at a high frequency we should use
moving iron instrument
electrostatic instrument
thermocouple instrument
moving coil instrument
Answer: Option
Explanation:
No answer description is available. Let's discuss.
37.
A moving iron instrument can be used for dc as well as ac.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
38.
Two wattmeter method of 3-phase power measurement can be used to find
total active power
total active power and power factor
total active power and reactive power
total active power, power factor, apparent power, and reactive power
Answer: Option
Explanation:
No answer description is available. Let's discuss.
39.
The multiplier resistance and meter coil in a voltmeter are in
series
parallel
series-parallel
either (a) or (b)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
40.
The adjustment of position of shading bands, in an energy meter, is done to provide
friction compensation
creep compensation
braking torque
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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