Electrical Engineering Questions And Answers :: Dc Generators: part1

Exam2win > Engineering > Electrical Engineering > Dc Generators > part1

Electrical Engineering : Dc Generators QUESTIONS AND ANSWERS :: part1 : 16 to 20

Following Electrical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2021 and IES 2021 examinations :

16.In D.C. generators, current to the external circuit from armature is given through

solid connection
slip rings
none of above

17.In a commutator

copper is harder than mica
mica and copper are equally hard
mica is harder than copper
none of the above

18.If B is the flux density, I the length of conductor and v the velocity of conductor, then induced e.m.f. is given by


19.The material for commutator brushes is generally

cast iron

20.Copper brushes in D.C. machine are used

where low voltage and high currents are involved
where high voltage and small cur-rents are involved
in both of the above cases
in none of the above cases

More Dc Generators QUESTIONS AND ANSWERS available in next pages

    Health is the greatest gift, contentment is the greatest wealth -Buddha
Identify your problems but give your power and energy to solutions- Tony Robbins