Electrical Engineering Questions And Answers :: Dc Motors: part5



Electrical Engineering : Dc Motors QUESTIONS AND ANSWERS :: part5 : 1 to 5

Following Electrical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :

1.D.C. motor is to a drive a load which is almost nil for certain part of the load cycle and peak value for short duration. We will select this

series motor
shunt motor
compound motor
any of the above

2.Where D.C. motor of H.P. 12 or more requires frequent starting, stopping, reversing and speed control

drum type controller is used
three point starter is used
four point starter is used
all above can be used

3.D.C. generators are normally designed for maximum efficiency around

full-load
rated r.p.m.
rated voltage
all of the above

4.The purpose of retardation test on D.C. shunt machines is to find out

stray losses
eddy current losses
field copper losses
windage losses

5.D.C. motor is to drive a load which has certain minimum value for most of the time and some peak value for short duration. We will select the

series motor
shunt motor
compound motor
any of the above

More Dc Motors QUESTIONS AND ANSWERS available in next pages

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