Subject Repository
Electrical Engineering Mcqs
Showing 2501 – 2520 of 3,699 verified multiple choice questions with answers and explanations.
Q2501NTS / FPSC / PPSC
Mostly, synchronous motors are of_____________?
Q2502NTS / FPSC / PPSC
The working of a synchronous motor is similar to_____________?
Q2503NTS / FPSC / PPSC
In a synchronous motor, the magnitude of stator back e.m.f. & depends on_______________?
Q2504NTS / FPSC / PPSC
The back e.m.f. of a synchronous motor depends on______________?
Q2505NTS / FPSC / PPSC
A synchronous motor can be made self starting by providing?
Q2506NTS / FPSC / PPSC
The shaft of synchronous motor is made of____________?
Q2507NTS / FPSC / PPSC
The operating speed of a synchronous motor can be changed to new fixed value by___________?
Q2508NTS / FPSC / PPSC
The maximum power developed in a synchronous motor occurs at a coupling angle of____________?
Q2509NTS / FPSC / PPSC
In which of the following motors the stator and rotor magnetic field rotate at the same speed?
Q2510NTS / FPSC / PPSC
A synchronous motor running with normal excitation adjusts to load increases essentially by increase in______________?
Q2511NTS / FPSC / PPSC
The efficiency of a properly designed synchronous motor will usually fall in range___________?
Q2512NTS / FPSC / PPSC
The armature current of the synchronous motor has higher values for_____________?
Q2513NTS / FPSC / PPSC
When the rotor speed, in a synchronous machine, becomes more than the synchronous speed during hunting, the damper bars develop_________________?
Q2514NTS / FPSC / PPSC
While starting a synchronous motor by induction motor action, field winding is usually_____________?
Q2515NTS / FPSC / PPSC
Armature of a synchronous machine is____________?
Q2516NTS / FPSC / PPSC
The power factor of a synchronous motor is better than that of induction motor because
Q2517NTS / FPSC / PPSC
If one-phase of a 3-phase synchronous motor is short-circuited, motor will ______________?
Q2518NTS / FPSC / PPSC