DC Generators - Interview Questions | Exam2Win

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86. In case of a flat compounded generator

A. voltage generated is less than the rated voltage

B. generated voltage is proportional to the load on the generator

C. voltage remains constant irrespec�tive of the load

D. speed varies in proportion to the load on the generator

Explanation:

87. In over compounded generator, full load terminal voltage is

A. almost zero

B. less than noload terminal voltage

C. more than noload terminal voltage

D. equal to no-load terminal voltage

Explanation:

88. A sinusoidal voltage of 5 Hz is applied to the field of a shunt generator. The armature voltage wave

A. will be zero

B. will be of 5 Hz

C. willbeof5xiVHz

D. will be of v Hz 5

Explanation:

89. When two D.C. series generators are running in parallel, an equilizer bar is used

A. to increase the speed and hence generated e.m.f.

B. to increase the series flux

C. so that two similar machines will pass approximately equal currents to the load

D. to reduce the combined effect of ar-mature reaction of both machines

Explanation:

90. In case of D.C. machines, mechanical losses are primary function of

A. current

B. voltage

C. speed

D. none of above

Explanation: