Explore topic-wise MCQs in Dc Machines.

This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Dc Machines knowledge and support exam preparation. Choose a topic below to get started.

1.

For a wave wounded machine number of brushes for small, large machines respectively is ________ _________

A. 2, 2
B. 4, 2
C. 2, P
D. Both values depend on the given conditions
Answer» D. Both values depend on the given conditions
Discussion
2.

Wave winding machines are used in ______ currents applications.

A. High
B. Moderate
C. Low
D. Can be used anywhere
Answer» D. Can be used anywhere
Discussion
3.

For a wave winding when a machine is 6-pole DC armature with 16 slots having 2-coil sides per slot and single-turn coil, Yf value is ____

A. 5
B. 3
C. 2
D. 7
Answer» B. 3
Discussion
4.

For a progressive wave winding Yc = ______

A. 2C/P
B. 2(C+1)/P
C. 2(C-1)/P
D. 2C/(P+1)
Answer» C. 2(C-1)/P
Discussion
5.

What will be the value of “Yf + Yb” for a wave winding?

A. Equal to Yc
B. Half of the Yc value
C. Double of the Yc value
D. Four times Yc value
Answer» D. Four times Yc value
Discussion
6.

WAVE_WINDING_MACHINES_ARE_USED_IN________CURRENTS_APPLICATIONS.?$

A. High
B. Moderate
C. Low
D. Can be used anywhere
Answer» D. Can be used anywhere
Discussion
7.

For_a_wave_wounded_machine_number_of_brushes_for_small,_large_machines_respectively_is___________________$

A. 2, 2
B. 4, 2
C. 2, P
D. Both values depend on the given conditions
Answer» D. Both values depend on the given conditions
Discussion
8.

For a wave winding when a machine is 6-pole DC armature with 16 slots having 2-coil sides per slot and single-turn coil, Yf value is ___?

A. 5
B. 3
C. 2
D. 7
Answer» B. 3
Discussion
9.

Equalizer rings are needed in the wave winding.

A. True
B. False
Answer» C.
Discussion
10.

For a conductor current equal to 4mA, Current carried by a particular brush in a 2-pole machine will be _____

A. 16mA
B. 8mA
C. 2mA
D. 10mA
Answer» C. 2mA
Discussion
11.

What is the relation between conductor current and armature current in wave winding?

A. Ic = Ia
B. Ic = 2Ia
C. Ic = 4Ia
D. Ic = Ia/2
Answer» E.
Discussion
12.

What is the spacing between the brushes for a wave winding when a machine is 6-pole DC armature with 16 slots having 2-coil sides per slot and single-turn coils.

A. 4 segments
B. 8 segments
C. 16 segments
D. 12 segments
Answer» C. 16 segments
Discussion
13.

Number of parallel paths in wave winding are ______

A. Equal to P
B. Equal to P/2
C. 2
D. Depends on other parameters
Answer» D. Depends on other parameters
Discussion
14.

For a progressive wave winding Yc = ______

A. 2C/P
B. 2(C+1)/P
C. 2(C-1)/P
D. 2C/(P+1)
Answer» C. 2(C-1)/P
Discussion
15.

What will be the value of “Yf + Yb” for a wave winding?

A. Equal to Y<sub>c</sub>
B. Half of the Y<sub>c</sub> value
C. Double of the Y<sub>c</sub> value
D. Four times Y<sub>c</sub> value
Answer» D. Four times Y<sub>c</sub> value
Discussion