The number of brushes in a commutator depends on______________?

Related Mcqs:

The bearings used to support the rotor shafts are generally______________?

A. ball bearings B. bush bearings C. magnetic bearmgs D. needle bearings...

Laminations of core are generally made of________________?

A. case iron B. carbon C. silicon steel D. stainless steel...

D.C. generators are connected to the busbars or disconnected from them only under the floating condition________________?

A. to avoid sudden loading of the primemover B. to avoid mechanicaljerk to the shaft C. to avoid burning of switch contacts D. all above...

In a D.C. generator in case the resistance of the field winding is increased, then output voltage will____________?

A. increase B. decrease C. remain unaffected D. fluctuate heavily...

The e.m.f. generated in a D.C. generator is directly proportional to____________?

A. flux/pole B. speed of armature C. number of poles D. all of the above...