Internal Combustion MCQ Question with Answer

Question No : 57
Iso-octane (C₈H₁₈) has octane number of

Question No : 58
As compared to air standard cycle, in actual working, the effect of variation in specific heats is to

Question No : 59
The operation of forcing additional air under pressure in the engine cylinder is known as

Question No : 60
The brake power (B.P.) of the engine is given by (where W = Brake load or dead load in newtons, l = Length of arm in metres, N = Speed of engine in r.p.m., S = Spring balance reading in newtons, D = Dia. of brake drum in metres, and d = Dia. of rope in metres)

Question No : 61
The pressure at the end of compression, in diesel engines, is approximately

Question No : 62
The mean effective pressure obtained from engine indicator indicates the

Question No : 63
The ignition quality of petrol is expressed by