1000+ Heat Engines Questions and Answers Pdf - 2

Question: 6

Cooking is

(A) producing lumps of coal from fine powders with the help of a binder

(B) burning of coal in a furnace

(C) heating of coal in absence of air driving carbon and leaving behind the residue of carbon

(D) formation of lumps or masses of coke in boiler furnaces at high temperature

Question: 7

Intake air filters are provided on air compressor for

(A) removing impurities of air

(B) reducing pressure of suction pressure

(C) reducing temperature of suction air

(D) removing dirt and dust from suction air

Question: 8

Latent heat is

(A) heat cannot be detected

(B) heat required to change the state or condition under which the substance exists

(C) heat that does not follow first law of thermodynamics

(D) heat required to change the substance from solid to gaseous state

Question: 9

For minimum work in multistage compression, the work done on

(A) first stage should be least

(B) last stage should be least

(C) there is no such consideration

(D) all stage should be equal

Question: 10

Thermodynamic equilibrium is completely defined by the specification of the

(A) generalized displacements

(B) internal energy

(C) enthalpy

(D) all of the above together