A.Formation of lumps or masses of coke in boiler furnaces at high temperatures
B.Heating of coal in absence of air driving carbon and leaving behind the residue of carbon
C.Burning of coal in a furnace
D.Producing lumps of coal from fine powders with the help of a binder
E.None of the above
A.Valve sticky
B.Valves leaky
C.Compression poor
D.Insufficient fuel supply to cylinders
E.Air cleaner plugged
A.The working fluid is air for which the specific heats are constant
B.There is no chemical reaction inside the engine clinder
C.Expansion and compression are adiabatic
D.There is always thermal and chemical equilibrium
E.The engine operates at mederate rpm
A.Otto cycle is more efficient
B.Diesel cycle is more efficient
C.Both are equally efficient
A.Higher
B.Lower
C.Same
D.Varies considerably
E.Depends on other factors
A.Brittle when heated
B.Brittle when cold
C.Ductile at low temperatures
D.Ductile at high temperatures
E.None of the above
A.Higher fuel consumption
B.Lower thermal efficiency
C.Higher thermal efficiency
D.Higher exhaust temperatures
E.None of the above
A.To increase the power output of engine
B.To reduce specific fuel consumption
C.To reduce the noise of engine
D.To improve cooling of cylinders
E.None of the above
