Exercise: Measurements And Instrumentation

Questions for: Measurements And Instrumentation

The braking torque in single phase energy meter is proportional to speed of disc.
A:
True
B:
False
C:
D:
Answer: A
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A current of 3.25 A is flowing through a resistance of 34.98 Ω. The voltage drop across resistance to the appropriate number of significant figures is
A:
113.685 V
B:
113.68 V
C:
113.6 V
D:
114 V
Answer: D
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A current of 3.18 A is flowing through resistance of 35.68 Ω. The voltage drop across resistance to the appropriate number of significant figures is
A:
113.4624 V
B:
113.462 V
C:
113.46 V
D:
113 V
Answer: D
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Piezoelectric effect can be used to measure
A:
force
B:
strain
C:
acceleration
D:
all of the above
Answer: D
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The two pressure coils in a single phase power factor meter of turns
A:
the same dimension and the same numbers of turns
B:
the same dimension but different number of turns
C:
different dimension and different numbers of turns
D:
different dimension but the same numbers of turns
Answer: A
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