1000+ Alternator MCQ Questions and Answers Pdf - 1
Question: 1
Turbo alternators are generally used to run at
(A) 1000 r.p.m.
(B) 1500 r.p.m.
(C) 3000 r.p.m.
(D) 5000 r.p.m.
Ans: C
3000 r.p.m.
Question: 2
Harmonic component of generated e.m.f. will be more in
(A) long pitch coil
(B) short pitch coil
(C) full pitch coil
(D) none of above coils
Ans: C
full pitch coil
Question: 3
Which of the following is a prime mover?
(A) electric heater
(B) solar energy
(C) steam turbine
(D) none of the above
Ans: C
steam turbine
Question: 4
When the speed of an alternator increases
(A) the frequency changes
(B) the frequency remains same
(C) the frequency increases
(D) the frequency decrease
Ans: C
the frequency increases
Question: 5
Generated e.m.f. for same field current and double speed will be
(A) double
(B) same
(C) less than double
(D) more than double
Ans: A
double
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