1000+ Heat Engines MCQ Questions and Answers Pdf - 2

Question: 6

For the same temperature limits and heat input the most efficient cycle is

(A) Brayton

(B) Carnot

(C) Diesel

(D) Otto

Question: 7

Which one of the following is not a constituent of coal?

(A) inorganic matter

(B) manganese

(C) hydrogen

(D) nitrogen

Question: 8

According to Charle’s law

(A) at constant volume, the absolute pressure is proportional to the temperature

(B) at constant temperature, pressure of a gas is proportional to its volume

(C) at constant temperature, pressure is proportional to temperature

(D) at constant pressure the volume of a gas is proportional to its absolute temperature

Question: 9

The function of a condenser in a steam power plant is

(A) to act as a heat sink

(B) to reduce back pressure

(C) to preheat feed water exhaust steam

(D) to utilize heat of exhaust steam

Question: 10

A regenerator in a gas turbine

(A) permits use of fuels of inferior quality

(B) improves thermal efficiency

(C) permits use of higher compression ratio

(D) reduces heat loss in exhaust