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Electronics and Communication Engineering - Measurements and Instrumentation

Exercise : Measurements and Instrumentation - Section 8
11.
A Q meter uses the principle of
variation of self inductance
variation of mutual inductance
series resonance
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.
In semiconductor strain gauge
resistance increases with strain
resistance decreases with strain
resistance increases with strain in p type and decreases with strain in n type
resistance increases with strain in n type and decreases with strain in p type
Answer: Option
Explanation:
No answer description is available. Let's discuss.
13.
Four terminal approach is used in measuring low resistance because it
eliminates thermoelectric energy
eliminates stray capacitance
eliminates stray inductance
eliminates the effect of leads and contacts
Answer: Option
Explanation:
No answer description is available. Let's discuss.
14.
In Weston synchronoscope the fixed coils are connected across
bus bars
incoming alternator
lamp
either (a) or (b)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
15.
Which of the following is not a transducer in true sense?
Thermocouple
Piezo electric
Photo electric cell
LCD
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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