In lap winding, the number of brushes is always_____________?

Related Mcqs:

In a four-pole D.C. machine____________?

A. all the four poles are north poles B. alternate poles are north and south C. all the four poles are south poles D. two north poles follow two south poles...

Laminations of core are generally made of________________?

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

In a D.C. machine stray loss is the sum of_____________?

A. total copper loss and mechanical loss B. armature copper loss and iron loss C. shunt field copper loss and mechanical loss D. iron loss and mechanical loss...

Which of the following D.C. generators will be in a position to build up without any residual magnetism in the poles?

A. Series generator B. Shunt generator C. Compound generator D. None of the above...

In a D.C. generator the critical resistance can be increased by_____________?

A. increasing its field resistance B. decreasing its field resistance C. increasing its speed D. decreasing its speed...