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Electronics and Communication Engineering - Measurements and Instrumentation

Exercise : Measurements and Instrumentation - Section 8
41.
The numbers of accelerating anodes in a CRO is
1
2
3
4
Answer: Option
Explanation:
No answer description is available. Let's discuss.
42.
Consider the following statements regarding phase sensitive detector
  1. The detector reads zero when phases of input signal and reference signal are different.
  2. The detector acts as a linear rectifier.
  3. The detector can be used as vector voltmeter.
Of the above statements which are correct?
1, 2, 3
1 and 2
2 and 3
1 and 3
Answer: Option
Explanation:
No answer description is available. Let's discuss.
43.
In a Weston synchronoscope, the moving coil is connected across
bus bar
incoming alternator
lamp
fixed coils
Answer: Option
Explanation:
No answer description is available. Let's discuss.
44.
The coding system generally used in digital telemetry is
PPM (Pulse position modulation)
PAM (Pulse amplitude modulation)
PCM (Pulse code modulation)
PDM (Pulse duration modulation)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
45.
The advantage of semiconductor strain gauge over resistance strain gauge is
it is more sensitve
it is more linear
it is less temperature dependent
it is cheaper
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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