Computer Programming MCQs

A. Only if the load current is zero
B. Only if the load current is not zero
C. Irrespective of the value of load current
D. None of the above

A. Shunt generators
B. Series generators
C. Compound generators
D. None of the above

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

A. Only if the resistance of the field circuit is less than critical value
B. Only if the resistance of the field circuit is greater than critical value
C. Irrespective of the value of the resistance in the field circuit
D. None

A. Field
B. Brushes
C. Armature
D. Load

A. To increase the speed and hence generated e.m.f.
B. To increase the series flux
C. So that two similar machines will pass approximately equal currents to the load
D. To reduce the combined effect of ar-mature reaction of both machines

A. Self-excited generator
B. Separately excited generator
C. Level compounded generator
D. All of the above

A. External resistance = internal char-acteristic – armature reaction
B. Internal characteristic = magnetisation characteristic – ohmic drop
C. External characteristic = magnetisation characteristic – ohmic drop – armature reaction
D. Magnetisation characteristic = external characteristic

A. Any even number of conductors
B. Any odd number of conductors
C. That even number which is exact multiple of poles + 2
D. That even number which is exact multiple of poles

A. Is always present
B. Is always absent
C. May be sometimes present
D. None of the above