WINDING -5

41. The following are the demerits of concentric winding, except __________.
due to overlapping of coils, this type of winding has less space for cooling
skilled labour is required to insert the coils in the slots
a stepped former is required
. not as efficient as basket winding
42. Pole pitch in electrical degrees = ________
90
180
270
360
43. ____________ is the closed coil winding.
AC stator winding
field winding
DC armature winding
none of the above
44. That part of a coil which does not lie in the slot is known as the ______ of a coil.
active side
inactive side
coil side
none of the above
45. ___________ is also equal to the coil pitch.
back pitch
front pitch
average pitch
commutator pitch
46. The front pitch is greater than the back pitch in _________ winding.
progressive winding
retrogressive winding
single layer winding
double layer winding
47. The commutator pitch of a simplex progressive lap winding is equal to _____ segments.
+1
-1
+2
-2
48. The width of brush is equal to __________ segments in a quadruplex lap or wave winding.
1
2
3
4
49. There is a parallel combination of two simplex wave windings is known as _________.
duplex wave winding
. triplex wave winding
quadruplex wave winding
none of the above
50. Among the following windings, such a winding is not used much.
single layer winding
double layer winding
two layer winding
multi coil winding
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