A. zero
B. about 2 V
C. about 50 V
D. 220 V
A. 150 V
B. 175 V
C. 240 V
D. 290 V
A. will be zero
B. will be of 5 Hz
C. will be of 5 xiVHz
D. will be of v Hz 5
A. to reduce eddy current losses
B. to enhance flux density
C. to amplify voltage
D. to provide mechanical balance for the rotor
The purpose of providing dummy coils in a generator is____________? Read More »
D.C. Generators A. sinusoidal
B. triangular
C. pulsating
D. flat topped
In D.C. generators on no-load, the air gap flux distribution in space is______________? Read More »
D.C. Generators A. armature reaction
B. armature resistance drop
C. field weakening due to armature reaction and armature
D. commutation
A. interpoles
B. dummy coils
C. compensating winding
D. shifting of axis of brushes
A. there is no load on|he generator
B. the generator runs on full load
C. the generator runs on overload
D. the generator runs on designed speed
A. negligibly low
B. equal to no-load terminal voltage
C. more than no-load terminal voltage
D. less than no-load terminal voltage
In a level compounded D.C. generator, full load terminal voltage is______________? Read More »
D.C. Generators A. flux/pole
B. speed of armature
C. number of poles
D. all of the above
The e.m.f. generated in a D.C. generator is directly proportional to____________? Read More »
D.C. Generators