The terminal voltage of a D.C. shunt generator drops on load because of all of the following reasons except:_____________?

Related Mcqs:

1. The terminal voltage of a series generator is 150 V when the load current is 5 A. If the load current is increased to 10 A, the terminal voltage will be____________?

   A. 150 V
   B. less than 150 V
   C. greater than 150 V
   D. none of the above

2. 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

3. Which of the following generator will have negligible terminal voltage while running on no-load?

   A. Series generator
   B. Shunt generator
   C. Compound generator
   D. Separately excited generator

4. A sinusoidal voltage of 5 Hz is applied to the field of a shunt generator. The armature voltage wave will_____________?

   A. will be zero
   B. will be of 5 Hz
   C. will be of 5 xiVHz
   D. will be of v Hz 5

5. 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

6. In a level compounded D.C. generator, full load terminal voltage is______________?

   A. negligibly low
   B. equal to no-load terminal voltage
   C. more than no-load terminal voltage
   D. less than no-load terminal voltage

7. The open circuit voltage of a compound generator is 250 V. At full load the terminal voltage____________?

   A. will be less than 250 V
   B. will always be 250 V
   C. may be greater or less than 250 V
   D. none of the above

8. The e.m.f. generated by a shunt wound D.C. generator isE. Now while pole flux remains constant, if the speed of the generator is doubled, the e.m.f. generated will be_______________?

   A. E/2
   B. 2E
   C. slightly less than E
   D. E

9. Two generators A and B have 6-poles each. Generator A has wave wound armature while generator B has lap wound armature. The ratio of the induced e.m.f. is generator A and B will be_______________?

   A. 2 : 3
   B. 3 : 1
   C. 3 : 2
   D. 1 : 3

10. Two D.C. shunt generators, each with armature resistance of 0.02 ohm and field resistance of 50 ohm run in parallel and supply a total current of 1000 amperes to the load circuit. If their e.m.fs. are 270 V and 265 V, their bus bar voltage will be_____________________?

    A. 270 V
    B. 267.5 V
    C. 265 V
    D. 257.4 V