EE MCQ
EE MCQ
Home
Quiz
Contact Us
Synchronous Motors
For the same active power consumed, the stator current of a synchronous motor is ______ that of a 3 phase induction motor.
Less than
None of the listed here
The same as
More than
Less than
None of the listed here
The same as
More than
Answer
Download EE MCQ app
Related Question
Synchronous Motors
For power factor correction, synchronous motors operate at
no-load and greatly over-excited fields
normal load with zero excitation
no-load and under-excited fields
normal load with minimum excitation
no-load and greatly over-excited fields
normal load with zero excitation
no-load and under-excited fields
normal load with minimum excitation
Answer
Download EE MCQ app
Synchronous Motors
As the load is applied to a synchronous motor, the motor takes more armature current because
The rotor strengthens the rotating field causing more motor current
The increased load has to take more current
The back e.m.f. decreases causing an increase in motor current
The rotor by shifting its phase backward causes motor to take more current
The rotor strengthens the rotating field causing more motor current
The increased load has to take more current
The back e.m.f. decreases causing an increase in motor current
The rotor by shifting its phase backward causes motor to take more current
Answer
Download EE MCQ app
Synchronous Motors
The back e.m.f. of a synchronous motor depends on
load
load angle
All of these
speed
load
load angle
All of these
speed
Answer
Download EE MCQ app
Synchronous Motors
A synchronous machine with low value of short-circuit ratio has
high stability limit
good voltage regulation
good speed regulation
lower stability limit
high stability limit
good voltage regulation
good speed regulation
lower stability limit
Answer
Download EE MCQ app
Synchronous Motors
In a synchronous motor which loss varies with load ?
Copper loss
Core loss
Windage loss
Bearing friction loss
Copper loss
Core loss
Windage loss
Bearing friction loss
Answer
Download EE MCQ app
Search
Login here
Google
Download our application
Android
Apple
Follow Us
Facebook
Telegram
Instagram