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Electronics and Communication Engineering - Measurements and Instrumentation

Exercise : Measurements and Instrumentation - Section 5
36.
A voltage of about 200 V dc can be measured
directly by dc potentiometer
by dc potentiometer in conjunction with a volt ratio box
a dc potentiometer in conjunction with a known resistance
both (b) and (c)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
37.
In a low power factor wattmeter, compensation for pressure coil current is provided.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
38.
De Sauty bridge is very widely used due to
simplicity
perfect balance for imperfect capacitor
perfect balance for air capacitors
maximum sensitivity
Answer: Option
Explanation:
No answer description is available. Let's discuss.
39.
A Weston synchronoscope is a
moving coils instrument
moving iron instrument
dynamometer instrument
induction instrument
Answer: Option
Explanation:
No answer description is available. Let's discuss.
40.
In a dynamometer 3 phase power factor meter, the planes of the two moving coils are at
60°
0°
120°
90°
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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