Internal Combustion Engines In petrol engine, using a fixed octane rating fuel and fixed compression ratio, supercharging will _________ the knocking tendency. Not effected None of these Increase Decrease Not effected None of these Increase Decrease ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The ratio of the work obtained at the crankshaft in a given time to the energy supplied during the same time is called Volumetric efficiency Indicated thermal efficiency Mechanical efficiency Overall efficiency Volumetric efficiency Indicated thermal efficiency Mechanical efficiency Overall efficiency ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The effective inhibitor of pre-ignition is Lead None of these Water Alcohol Lead None of these Water Alcohol ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The air standard efficiency of an I.C. engine is given by (where r = Compression ratio, and γ = Ratio of specific heats) 1 - rγ - 1 1 + rγ - 1 None of these 1 - (1/rγ - 1) 1 - rγ - 1 1 + rγ - 1 None of these 1 - (1/rγ - 1) ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Which of the following is false statement?Excess quantities of sulphur in diesel fuel are Objectionable because it may cause the following Formation of hard coating on piston skirts Piston ring and cylinder wear Detonation Oil sludge in the engine crank case Formation of hard coating on piston skirts Piston ring and cylinder wear Detonation Oil sludge in the engine crank case ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In a diesel engine, the duration between the time of injection and ignition, is known as Burning period Delay period Period of ignition Pre-ignition period Burning period Delay period Period of ignition Pre-ignition period ANSWER DOWNLOAD EXAMIANS APP
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