Subject Repository
Electrical Engineering Mcqs
Showing 2481 – 2500 of 3,699 verified multiple choice questions with answers and explanations.
Q2482NTS / FPSC / PPSC
Synchronsizing power of a synchronous machine is_____________?
Q2483NTS / FPSC / PPSC
When the stator windings are connected in such a fashion that the number of poles are made half, the speed of the rotor of a synchronous motor___________?
Q2484NTS / FPSC / PPSC
When load on an over-excited or under excited synchronous*motor is increased, rate of change of its armature current as compared with that of power factor is___________?
Q2485NTS / FPSC / PPSC
Riunting in a synchronous motor takes place___________?
Q2486NTS / FPSC / PPSC
The percentage slip in case of a synchronous motor is____________?
Q2487NTS / FPSC / PPSC
When the field of a synchronous motor is under-excited, the power factor will be____________?
Q2488NTS / FPSC / PPSC
The oscillations in a synchronous motor can be damped out by_______________?
Q2489NTS / FPSC / PPSC
A synchronous motor can operate at____________?
Q2490NTS / FPSC / PPSC
If load (or torque) angle of a 4-pole synchronous motor is 6° electrical, its value in mechanical degrees is__________?
Q2491NTS / FPSC / PPSC
The minimum armature current of the synchronous motor corresponds to operation at______________?
Q2492NTS / FPSC / PPSC
Synchronous motor always runs at______________?
Q2493NTS / FPSC / PPSC
Under which of the following conditions hunting of synchronous motor is likely to occur?
Q2494NTS / FPSC / PPSC
A synchronous motor is running on a load with normal excitation. Now if the load on the motor is increased
Q2495NTS / FPSC / PPSC
As the load is applied to a synchronous motor, the motor takes more armature current because
Q2496NTS / FPSC / PPSC
The power developed by a synchronous motor will be maximum when the load angle is____________?
Q2497NTS / FPSC / PPSC