Measurement and Instrumentation - Interview Questions | Exam2Win

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41. In a single phase power factor meter the phase difference between the currents in the two pressure coils is

A. exactly 0�

B. approximately 0�

C. exactly 90�

D. approximately 90�

Explanation:

42. For measurements on high voltage capacitors, the suitable bridge is

A. Wein bridge

B. Modified De Santy's bridge

C. Schering bridge

D. Any of the above

Explanation:

43. If an inductance is connected in one arm of bridge and resistances in the remaining three arms

A. the bridge can always be balanced

B. the bridge cannot be balanced

C. the bridge can be balanced if the resistances have some specific values

D. the bridge cannot be balanced

Explanation:

44. To measure a resistance with the help of a potentiometer it is

A. necessary to standardise the potentiometer

B. not necessary to standardise the potentiometer

C. necessary to use a volt ratio box in conjunction with the potentiometer

D. none of the above

Explanation:

45. _____ instruments are those which measure the total quantity of electricity delivered in a particular time.

A. Absolute

B. Indicating

C. Recording

D. Integrating

Explanation: