Explore topic-wise MCQs in Dc Machines.

This section includes 3 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.

DC Shunt Motor has a disadvantage __________

A. Constant speed
B. Less expensive
C. Not suitable for rapidly changing loads
D. Cannot be determined
Answer» D. Cannot be determined
Discussion
2.

Correct equation of speed-torque characteristic of DC shunt motor is____________

A. [V<sub>t</sub> / k ] [R<sub>a</sub> / k<sup>l</sup> <sup>2</sup>] T
B. [V<sub>t</sub> / k <sup>2</sup>] [R<sub>a</sub> / k<sup>l</sup> <sup>2</sup>] T
C. [V<sub>t</sub> / k ] [R<sub>a</sub> / k<sup>l</sup> ] T
D. [V<sub>t</sub> / k <sup>2</sup>] [R<sub>a</sub> / k<sup>l</sup> <sup>2</sup>] T
Answer» B. [V<sub>t</sub> / k <sup>2</sup>] [R<sub>a</sub> / k<sup>l</sup> <sup>2</sup>] T
Discussion
3.

As the load is increased the speed of DC shunt motor will ___________

A. Reduce slightly
B. Increase slightly
C. Increase proportionately
D. Reduce rapidly
Answer» B. Increase slightly
Discussion