|
At no-load, the armature current in ___
|
|
0
|
293
|
November 5, 2021
|
|
A synchronous motor can develop synchronous ___
|
|
0
|
93
|
November 5, 2021
|
|
Exciters of synchronous machines are ___
|
|
0
|
97
|
November 5, 2021
|
|
The size of a synchronous motor decreases with ___
|
|
0
|
57
|
November 5, 2021
|
|
The magnitude of field flux in a 3-phase synchronous ___
|
|
0
|
95
|
November 5, 2021
|
|
In a synchronous motor, the maximum power developed depends on ___
|
|
0
|
81
|
November 5, 2021
|
|
A synchronous motor is running with ___
|
|
0
|
64
|
November 5, 2021
|
|
If in a synchronous motor, driving mechanical load and ___
|
|
0
|
79
|
November 5, 2021
|
|
The angle between the rotating stator flux and rotor poles is ___
|
|
0
|
65
|
November 5, 2021
|
|
When the voltage applied to a synchronous motor is increased, which of the following will reduce?
|
|
0
|
122
|
November 5, 2021
|
|
In which of the following motors the stator and rotor magnetic field rotate at the same speed?
|
|
0
|
68
|
November 5, 2021
|
|
The speed regulation of a synchronous motor is ___
|
|
0
|
89
|
November 5, 2021
|
|
If load (or torque) angle of a 4-pole synchronous motor is ___
|
|
0
|
86
|
November 5, 2021
|
|
A synchronous motor is running on a load with ___
|
|
0
|
67
|
November 5, 2021
|
|
A synchronous motor can operate at ___
|
|
0
|
75
|
November 5, 2021
|
|
The maximum torque which a synchronous motor will develop at ___
|
|
0
|
67
|
November 5, 2021
|
|
Which of the following losses, in a synchronous motor, does not vary with load?
|
|
0
|
76
|
November 5, 2021
|
|
A 3-phase synchronous motor is ___
|
|
0
|
67
|
November 5, 2021
|
|
Due to which of the following reasons a synchronous motor fails to ___
|
|
0
|
63
|
November 5, 2021
|
|
If in a synchronous motor, driving a given mechanical load and ___
|
|
0
|
70
|
November 5, 2021
|
|
Which of the following motors will be used in electric clocks?
|
|
0
|
80
|
November 5, 2021
|
|
In a synchronous motor running with fixed excitation, when the ___
|
|
0
|
95
|
November 5, 2021
|
|
An over-excited synchronous motor is ___
|
|
0
|
69
|
November 5, 2021
|
|
When the stator windings are connected in such a fashion that ___
|
|
0
|
78
|
November 5, 2021
|
|
When the field of a synchronous motor is under-excited, the ___
|
|
0
|
70
|
November 5, 2021
|
|
A synchronous motor can be used as a synchronous capacitor when ___
|
|
0
|
112
|
November 4, 2021
|
|
In a synchronous motor, the breakdown torque is ___
|
|
0
|
87
|
November 4, 2021
|
|
For power factor correction, synchronous motors operate at ___
|
|
0
|
87
|
November 4, 2021
|
|
In a synchronous motor, the armature current has ___
|
|
0
|
72
|
November 4, 2021
|
|
Which of the following motors is nonself starting?
|
|
0
|
80
|
November 4, 2021
|
