Exercise: Measurements And Instrumentation

Questions for: Measurements And Instrumentation

Which of the following is active transducer?
A:
Photoelectric
B:
Photovoltaic
C:
Photoconductive
D:
Photoemissive
Answer: B
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Magnetic deflection sensitivity is defined as
A:
deflection/flux density
B:
(deflection/flux density)0.5
C:
(Deflection)0.5/flux density
D:
none of the above
Answer: A
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In Maxwell's bridge the unknown inductance is measured by comparing it with a standard capacitor.
A:
True
B:
False
C:
D:
Answer: B
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Assertion (A): The sign and magnitude of displacement can be measured by an LVDT.

Reason (R): LVDT is based on the principle of mutual inductance.

A:
Both A and R are true and R is correct explanation of A
B:
Both A and R are true but R is not correct explanation of A
C:
A is true R is false
D:
A is false R is true
Answer: B
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Which of the following effects is used in measurement of magnetic flux?
A:
Hall effect
B:
Seeback effect
C:
Piezo electric effect
D:
Photoelectric effect
Answer: A
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