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 - (1/rγ - 1) 1 + rγ - 1 1 - rγ - 1 None of these 1 - (1/rγ - 1) 1 + rγ - 1 1 - rγ - 1 None of these ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In order to eliminate knocking in compression ignition engines, there should be Late auto-ignition High self ignition temperature of fuel Short delay period Low compression ratio Late auto-ignition High self ignition temperature of fuel Short delay period Low compression ratio ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In order to mix air and petrol in the required proportion and to supply it to the engine during suction stroke, then ___ is employed. Fuel pump Injector None of the listed here Carburettor Fuel pump Injector None of the listed here Carburettor ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines If the compression ratio in I.C. engine increases, then its thermal efficiency will None of these Decrease Increase Remain same None of these Decrease Increase Remain same 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 2 43832 1 4 2 43832 1 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The compensating jet in a carburettor supplies almost constant amount of petrol at all speeds because the Jet area is automatically varied depending on the suction The flow from the main jet is diverted to the compensating jet with increase in speed Flow is produced due to the static head in the float chamber The diameter of the jet is constant and the discharge coefficient is invariant Jet area is automatically varied depending on the suction The flow from the main jet is diverted to the compensating jet with increase in speed Flow is produced due to the static head in the float chamber The diameter of the jet is constant and the discharge coefficient is invariant ANSWER DOWNLOAD EXAMIANS APP
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