Internal Combustion Engines The ratio of the indicated thermal efficiency to the air standard efficiency is known as Overall efficiency Volumetric efficiency Mechanical efficiency Relative efficiency Overall efficiency Volumetric efficiency Mechanical efficiency Relative efficiency ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In petrol engine, using a fixed octane rating fuel and fixed compression ratio, supercharging will _________ the knocking tendency. None of these Not effected Decrease Increase None of these Not effected Decrease Increase ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines When a body, floating in a liquid, is given a small angular displacement, it starts oscillating about a point known as Centre of buoyancy Metacentre Centre of pressure Centre of gravity Centre of buoyancy Metacentre Centre of pressure Centre of gravity ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The working cycle in case of four stroke engine is completed in following number of revolutions of crankshaft 4 43832 2 1 4 43832 2 1 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The minimum cranking speed in case of petrol engine is about Half the operating speed One fourth of operating speed 60 - 80 rpm 250 - 300 rpm Half the operating speed One fourth of operating speed 60 - 80 rpm 250 - 300 rpm ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In a four stroke cycle engine, the sequence of operations is Suction, compression, expansion and exhaust Suction, expansion, compression and exhaust Expansion, compression, suction and exhaust Compression, expansion, suction and exhaust Suction, compression, expansion and exhaust Suction, expansion, compression and exhaust Expansion, compression, suction and exhaust Compression, expansion, suction and exhaust ANSWER DOWNLOAD EXAMIANS APP
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