7000+ Electrical Engineering Previous Year Question Paper Pdf Download - 2

Question: 6

Direct conversion of heat into electric power is possible through

(A) thermionic converter

(B) batteries

(C) fuel cell

(D) all of the above

Question: 7

If the speed of a D.C. shunt motor is increased the back e.m.f. of the motor will

(A) increase

(B) decrease

(C) become zero

(D) remain same

Question: 8

Which of the following load normally needs starting torque more than the rated torque?

(A) air compressors

(B) blowers

(C) conveyors

(D) centrifugal pumps

Question: 9

Which of the following drives is suitable for mines where explosive gas exists?

(A) battery locomotive

(B) diesel engine

(C) steam engine

(D) any of the above

Question: 10

On which of the following variables heat convected depends?

(A) gravitational constant

(B) thermal resistivity, density, specific heat

(C) temperature difference between heated surface and coolant

(D) all the above