In a separately excited generator supplying rated load the armature reaction:

A. Is always present

B. Is always absent

C. May be sometimes present

D. None of the above

Answer: Option A

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Related Questions on D.C. Generators

Inter-pole flux should be sufficient to

A. Neutralize the commutating self induced e.m.f.

B. Neutralize the armature reaction flux

C. Neutralize both the armature reaction flux as well as commutating e.m.f. induced in the coil

D. Perform none of the above functions

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 irrespective of the load

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

Which of the following statement about D.C. generators is false?

A. Compensating winding in a D.C. machine helps in commutation

B. In a D. C. generator interpoles winding is connected in series with the armature winding

C. Back pitch and front pitch are both odd and approximately equal to the pole pitch

D. Equalizing bus bars are used with parallel running of D.C. shunt generators