In D.C. generators, lap winding is used for______________?

Related Mcqs:

In lap winding, the number of brushes is always_____________?

A. double the number of poles B. same as the number of poles C. half the number of poles D. two...

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. 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...

A shunt generator running at 1000 r.p.m. has generated e.m.f. as 200 V. If the speed increases to 1200 r.p.m., the generated e.m.f. will be nearly_______________?

A. 150 V B. 175 V C. 240 V D. 290 V...

If a self excited D.C. generator after being installed, fails to build up on its first trial run, the first thing to do is to______________?

A. reverse the field connections B. increase the field resistance C. increase the speed of primemover D. check armature insulation resistance...