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Electronics and Communication Engineering - Measurements and Instrumentation

Exercise : Measurements and Instrumentation - Section 7
41.
Pirani gauge is used to measure
very low pressure
high pressure
pressure in the range of 1 atmosphere
fluid flow
Answer: Option
Explanation:
No answer description is available. Let's discuss.
42.

Assertion (A): CRT is the most important component of a CRO.

Reason (R): When an electron beam strikes the screen of CRT, a spot of light is produced.

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.
43.
A capacitance transducer has two plates each of area 5 mm2. The coil gap is 2 mm. Displacement sensitivity due to change in gap length is
11.1 pF/cm
44.2 pF/cm
52.3 pF/cm
66.3 pF/cm
Answer: Option
Explanation:
No answer description is available. Let's discuss.
44.
Four capacitors are in parallel. Their values are 36.3 μF, 3.85 μF, 34.002 μF and 850 μF with an uncertainty of digit in the last place. The total capacitance in significant figures is
75.0 μF
75.0 ± 0.1 μF
75.1 ± 0.1 μF
75.002 ± 0.1 μF
Answer: Option
Explanation:
No answer description is available. Let's discuss.
45.
In figure, C0 is distributed capacitance and C is tuning capacitor. If C = C1 for fundamental frequency and C = C2 for second harmonic, then C0 =
C1 - 2C2
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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