Electrical Engineering Questions And Answers :: Dc Motors: part3



Electrical Engineering : Dc Motors QUESTIONS AND ANSWERS :: part3 : 6 to 10

Following Electrical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2014 and IES 2014 examinations :

6.Speed control by Ward Leonard method gives uniform speed variation

in one direction
in both directions
below normal speed only
above normal speed only.

7.Which of the following motor has the poorest speed regulation ?

Shunt motor
Series motor
Differential compound motor
Cumulative compound motor

8.Three point starter can be used for

series motor only
shunt motor only
compound motor only
both shunt and compound motor

9.Flywheel is used with D.C. compound motor to reduce the peak demand by the motor, compound motor will have to be

level compounded
under compounded
cumulatively compounded
differentially compounded

10.Which one of the following is not necessarily the advantage of D.C. motors over A.C. motors ?

Low cost
Wide speed range
Stability
High starting torque.

More Dc Motors QUESTIONS AND ANSWERS available in next pages

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