GATE Solved Question Papers for Mechanical Engineering Free Download - 1
Question: 1
Solar cells are made of
(A) aluminium
(B) silver
(C) germanium
(D) silicon
Ans: D
silicon
Question: 2
When pulverised fuel is not used, the equipment used for feeding coal to the boiler is
(A) stoker
(B) feedpump
(C) regenerator
(D) heater
Ans: A
stoker
Question: 3
Which of the following method can be used for heating wood?
(A) oil burner heating
(B) dielectric heating
(C) tungsten arc heating
(D) carbon arc heating
Ans: B
dielectric heating
Question: 4
The device used to generate power utilising energy of wind is called
(A) wind generator
(B) windmill
(C) aerogenerator
(D) air motor
Ans: B
windmill
Question: 5
Coal used in power plants is also known as
(A) soft coal
(B) coke
(C) steam coal
(D) charcoal
Ans: C
steam coal
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