Electrical Machine Design QUESTIONS AND ANSWERS

Electrical Engineering : Electrical Machine Design QUESTIONS AND ANSWERS :: part4 : 6 to 10

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

6.In D.C. machines the number of slots per pole usually lies

between 2 to 4

between 6 to 8

between 9 to 16

between 20 to 30

7.The laminations of the armature of a D.C. machine are usually _____ thick.

0.1 to 0.2 mm

0.2 to 0.3 mm

0.3 to 0.4 mm

0.4 to 0.5 mm

8.The weight of copper of both armature and field windings decreases with _____ in number of poles.

increase

decrease

either of the above

none of the above

9.Which of the following brushes can be used for high values of current density ?

Metal graphite brushes

Hard carbon brushes

Electro-graphitic brushes

Natural graphite brushes

10.In D.C. machines the usual limit of slot pitch is

between 5 to 10 mm

between 10 to 15 mm

between 15 to 20 mm

between 25 to 35 mm

More Electrical Machine Design QUESTIONS AND ANSWERS available in next pages

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Electrical Engineering Questions And Answers :: Electrical Machine Design: part4

Electrical Machine Design QUESTIONS AND ANSWERS

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