7000+ Electrical Power Sources MCQ Questions & Answers - 2

Question: 6

The efficiency of a boiler used in modern steam power plant is of the order of

(A) 30%

(B) 50%

(C) 80%

(D) 85%

Question: 7

The coal of the lowest calorific value is

(A) Anthracite

(B) Steam coal

(C) Bituminous coal

(D) Lignite

Question: 8

The commercial sources of energy are

(A) Wood, animal wastes and agricultural wastes

(B) Solar, wind, biomass

(C) Fossile fuels, water and radioactive substances

(D) None of the above

Question: 9

Turbines installed at Bhakra Nangal are

(A) Properller turbines

(B) Kaplan turbines

(C) Francis turbines

(D) Pelton wheels

Question: 10

Location of a surge tank, in an hydroelectric power station, is near

(A) Dam

(B) Reservoir

(C) Tail race

(D) Turbine