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Electronics and Communication Engineering - Measurements and Instrumentation

Exercise : Measurements and Instrumentation - Section 5
6.
An induction wattmeter can be used for ac only.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
7.
To measure a resistance of about 8 ohms we should use
Kelvin's double bridge
Wheatstone bridge
Meggar
Either (b) or (c)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
8.
For measuring temperatures below 800°C with high accuracy, the best instrument is
optical pyrometer
thermistor based thermometer
GaAs junction diode thermometer
platinum resistance thermometer
Answer: Option
Explanation:
No answer description is available. Let's discuss.
9.
Panel instruments are generally mounted vertically.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
10.

Assertion (A): Many instruments use eddy current damping.

Reason (R): Eddy currents set up a magnetic flux which opposes the original movement which generates them.

Both A and R are true and R is correct explanation of A
Both A and R are true but R is not correct explanation of A
A is true R is false
A is false R is true
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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