Variation in the dc excitation of a synchronous motor causes variation – McqOptions

MCQOPTIONS

1.	Variation in the dc excitation of a synchronous motor causes variation in ___________
A.	armature current and power factor
B.	power factor
C.	armature current
D.	speed
Answer» B. power factor

Discussion

No Comment Found

Related MCQs

Which motor can conveniently operate at lagging as well as leading power factor?
Variation in the dc excitation of a synchronous motor causes variation in ___________
In a synchronous motor the back emf peak set up in the stator depends on ___________
The operation of a synchronous motor operating on constant excitation across infinite bus will not be stable if power angle ?
Electromagnetic torque is present in rotating machines when ____________
For a 4-pole 3 phase, 400V alternator has synchronizing power of 300 units. Then the synchronizing power per mechanical degree is?
Which of the following is/are used in synchronous machines to maintain mechanical stability?
Which of the following makes synchronizing power to come to play in the machine?
Synchronizing power is __________
As load angle is increased, degree of stability __________