Exercise: Measurements And Instrumentation

Questions for: Measurements And Instrumentation

A universal RLC bridge uses
A:
Maxwell bridge for measurement of inductance and De Sauty's bridge for measurement of capacitance
B:
Maxwell's bridge for measurement of inductance and modified De Sauty bridge for measurement of capacitance
C:
Maxwell Wien bridge for measurement of inductance and modified De Sauty bridge for measurement of inductance
D:
Maxwell Wien bridge for measurement of inductance and Wien bridge for measurement of capacitance
Answer: C
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The pressure coil of a wattmeter should be connected to the supply side of the current coil when
A:
load impedance in high
B:
load impedance is low
C:
voltage is high
D:
voltage is low
Answer: A
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The output of a Piezoelectric crystal has
A:
low amplitude and low impedance
B:
high amplitude and low impedance
C:
low amplitude and high impedance
D:
high amplitude and high impedance
Answer: C
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Assertion (A): A radiation pyrometer is very suitable for high temperature measurement.

Reason (R): When temperature is high, a physical contact between hot body and thermometer is not desirable.

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: A
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Assertion (A): A power factor meter operates on dynamometer principle.

Reason (R): A power factor meter does not have a control spring.

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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