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_______________?

Related Mcqs:

1. 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

2. 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

3. The number of armature parallel paths in a two-pole D.C. generator having duplex lap winding is______________?

   A. 2
   B. 4
   C. 6
   D. 8

4. For a D.C. generator when the number of poles and the number of armature conductors is fixed, then which winding will give the higher e.m.f___________ ?

   A. Lap winding
   B. Wave winding
   C. Either of A. and B. above
   D. Depends on other features of design

5. 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

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

   A. high voltage, high current
   B. low voltage, high current
   C. high voltage, low current
   D. low voltage, low current

7. 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

8. Two generators are running in parallel. One of the generators may run as motor for which of the following reasons ?

   A. The direction of that generator is reversed
   B. The speed of that generator is increased
   C. The field of that generator is weakened
   D. That generator takes large share of loads

9. In case of a 4-pole D.C. generator provided with a two layer lap winding with sixteen coils, the pole pitch will be__________________?

   A. 4
   B. 8
   C. 16
   D. 32

10. In D.C. generators, current to the external circuit from armature is given through_____________?

    A. commutator
    B. solid connection
    C. slip rings
    D. none of above