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) None of these 1 - rγ - 1 1 - (1/rγ - 1) 1 + rγ - 1 None of these 1 - rγ - 1 1 - (1/rγ - 1) 1 + rγ - 1 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines A stoichiometric air-fuel ratio is Lean mixture Chemically correct mixture Rich mixture for idling Rich mixture for over loads Lean mixture Chemically correct mixture Rich mixture for idling Rich mixture for over loads ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The scavenging efficiency of a four stroke cycle diesel engine is Between 95 and 100% Between 50 and 85% Below 50% Between 85 and 95% Between 95 and 100% Between 50 and 85% Below 50% Between 85 and 95% ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The term scavenging is generally associated with High efficiency engines 2-stroke cycle engines 4-stroke cycle engines Aeroplane engines High efficiency engines 2-stroke cycle engines 4-stroke cycle engines Aeroplane engines ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines A petrol engine has compression ratio from 10 to 15 15 to 25 6 to 10 25 to 40 10 to 15 15 to 25 6 to 10 25 to 40 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines A diesel engine, during suction stroke, draws Diesel only Air only None of these A mixture of diesel and air Diesel only Air only None of these A mixture of diesel and air ANSWER DOWNLOAD EXAMIANS APP
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