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Measurement and Instrumentation - Interview Questions and Answers

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21. An ohmmeter is a
A. moving iron instrument
B. moving coil instrument
C. dynamometer instrument
D. none of the above
Explanation:
22. In a low power factor wattmeter the pressure coil is connected
A. to the supply side of the current coil
B. to the load side of the current coil
C. in any of the two meters at connection
D. none of the above
Explanation:
23. Which of the following essential features is possessed by an indicating instrument ?
A. Deflecting device
B. Controlling device
C. Damping device
D. All of the above
Explanation:
24. Murray loop test can be used for location of
A. ground fault on a cable
B. short circuit fault on a cable
C. both the ground fault and the short-circuit fault
D. none of the above
Explanation:
25. An induction wattmeter can be used for
A. both D.C. and A.C.
B. D.C. only
C. A.C. only
D. any of the above
Explanation:
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