Internal Combustion Engines The advancing of spark timing in spark ignition engines will ___ knocking tendency. Reduce Not effect None of the listed here Increase Reduce Not effect None of the listed here Increase ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In a cycle, the spark lasts roughly for 0.01 sec 0.001 sec 1 sec 0.1 sec 0.01 sec 0.001 sec 1 sec 0.1 sec ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Number of working strokes per min. for a two stroke cycle engine is ____ the speed of the engine in r.p.m. Twice Equal to One-half Four-times Twice Equal to One-half Four-times ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Compression ratio of I.C. Engines is The ratio of volumes of air in cylinder before compression stroke and after compression stroke Swept volume/cylinder volume Volume displaced by piston per stroke and clearance volume in cylinder Ratio of pressure after compression and before compression The ratio of volumes of air in cylinder before compression stroke and after compression stroke Swept volume/cylinder volume Volume displaced by piston per stroke and clearance volume in cylinder Ratio of pressure after compression and before compression 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 - (1/rγ - 1) None of these 1 - rγ - 1 1 + rγ - 1 1 - (1/rγ - 1) None of these 1 - rγ - 1 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The pressure at the end of compression, in petrol engines, is approximately 25 bar 20 bar 35 bar 10 bar 25 bar 20 bar 35 bar 10 bar ANSWER DOWNLOAD EXAMIANS APP
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