|
The speed of a p-pole synchronous machine in r.p.m. is ___
|
|
0
|
180
|
September 9, 2021
|
|
Salient pole type alternators are ___
|
|
0
|
110
|
September 9, 2021
|
|
The speed of a p-pole synchronous machine in ___
|
|
0
|
122
|
September 9, 2021
|
|
In an alternator one of the advantages of ___
|
|
0
|
372
|
September 9, 2021
|
|
In an alternator, the armature reaction ___
|
|
0
|
162
|
September 9, 2021
|
|
At leading power factor, the armature flux in ___
|
|
0
|
571
|
September 9, 2021
|
|
If two alternators are running in parallel and the excitation of one of the alternators is ___
|
|
0
|
149
|
September 8, 2021
|
|
Which of the following coils in an alternator will have e.m.f. closer to sine waveform?
|
|
0
|
366
|
September 8, 2021
|
|
If two alternators are running in proper synchronism and the voltage of ___
|
|
0
|
201
|
September 8, 2021
|
|
In a larger generator dampers ___
|
|
0
|
234
|
September 8, 2021
|
|
The power factor of an alternator is determined by ___
|
|
0
|
219
|
September 8, 2021
|
|
In an alternator, armature reaction is considered equivalent to ___
|
|
0
|
185
|
September 8, 2021
|
|
Non-salient pole type of rotor construction is usually provided in ___
|
|
0
|
163
|
September 8, 2021
|
|
Which harmonic will be totally eliminated in an alternator by using a fractional pitch of 4/5?
|
|
0
|
444
|
September 8, 2021
|
|
In a star connected armature winding ___
|
|
0
|
179
|
September 8, 2021
|
|
Large-diameter salient-pole rotors have short axial length mainly because ___
|
|
0
|
157
|
September 8, 2021
|
|
For parallel operation of the two alternators, desirable feature is ___
|
|
0
|
197
|
September 8, 2021
|
|
Two alternators '1' and '2' are sharing an inductive load equally ___
|
|
0
|
180
|
September 8, 2021
|
|
An alternator driven by a Francis hydraulic turbine is ___
|
|
0
|
254
|
September 8, 2021
|
|
The power drawn by the prime-mover of an alternator, under ___
|
|
0
|
148
|
September 8, 2021
|
|
Salient pole rotors are used where ___
|
|
0
|
115
|
September 8, 2021
|
|
In an alternator short-circuit current is limited by ___
|
|
0
|
262
|
September 8, 2021
|
|
Alternator of a central power station will have ___
|
|
0
|
236
|
September 8, 2021
|
|
In an alternator the armature reaction is mainly influenced by ___
|
|
0
|
234
|
September 8, 2021
|
|
An infinite bus bar has ___
|
|
0
|
120
|
September 8, 2021
|
|
In a synchronous machine, all of the following losses are ___
|
|
0
|
155
|
September 8, 2021
|
|
Alternators are usually designed to ___
|
|
0
|
193
|
September 8, 2021
|
|
The number of poles in turbo-alternator is ___
|
|
0
|
137
|
September 8, 2021
|
|
An alternator coupled to which primemover will usually have the highest rotating speed?
|
|
0
|
201
|
September 8, 2021
|
|
Due to which of the following reasons, for aircraft alternators high frequency is used?
|
|
0
|
169
|
September 8, 2021
|