DC machines have ________ windings and synchronous machines use ______ – McqOptions

MCQOPTIONS

1.	DC machines have ________ windings and synchronous machines use ______ windings.
A.	closed,open
B.	open, closed
C.	open, open
D.	closed, closed
Answer» B. open, closed

Discussion

No Comment Found

Related MCQs

Consider a dc machine having its armature wound in lap fashion having 12 coils and each resistance 0.1 ohms. If it is measured resistance between two adjacent commutator segments, the result will be _________
A 6-pole lap wound DC generator has a developed power of P watts and brush voltage of E volts. Three adjacent brushes of the machine had been found worn out and got open circuited. If the machine is operated with the remaining brushes, voltage and power that could be obtained from the machine are _________
While doing regular checks on the dc machine with the lap connected winding, it is reported to have ammeter fluctuations, this can be due to _________
For a given dc machine it is advised to use the dummy windings for a stable operation. But if it has be replaced as it unused component in the machine, then we must _________
In AC machines we should prefer double layer winding over single layer windings because _________
We can employ dummy coils in a DC machine to _________
Commutator segments in a DC shunt machine is equal to the number of _________
The commutator pitch for a simplex lap winding is equal to _________
The simplex lap winding has the range of winding pitch of _________
We can place closed windings in _________