A 220 V D.C. generator is run at full speed without any excitation. The open circuit voltage will be_____________?

Related Mcqs:

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

A. current B. voltage C. speed D. none of above...

Iron losses in a D.C. machine are independent of variations in_____________?

A. speed B. load C. voltage D. speed and voltage...

The e.m.f. induced in the armature of a shunt generator is 600 V. The armature resistance is 0.1 ohm. If the armature current is 200 A, the terminal voltage will be_____________?

A. 640 V B. 620 V C. 600 V D. 580 V...

In over compounded generator, full load terminal voltage is______________?

A. almost zero B. less than no load terminal voltage C. more than no load terminal voltage D. equal to no-load terminal voltage...

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...