Internal Combustion Engines The knocking in diesel engines may be prevented by Raising the compression ratio All of these Reducing the delay period Increasing the inlet pressure of air Raising the compression ratio All of these Reducing the delay period Increasing the inlet pressure of air ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The advancing of spark timing in spark ignition engines will ___ knocking tendency. Reduce None of the listed here Increase Not effect Reduce None of the listed here Increase Not effect ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The fuels in order of decreasing knock tendency for spark ignition engines are Napthene, aromatics, paraffin Paraffin, aromatic, napthene Napthene, paraffin, aromatic Paraffin, napthene, aromatic Napthene, aromatics, paraffin Paraffin, aromatic, napthene Napthene, paraffin, aromatic Paraffin, napthene, aromatic ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In a typical medium speed 4-stroke cycle diesel engine the inlet valve Opens at 10° after top dead center and closes 20° before the bottom dead center Opens at top dead center and closes at bottom dead center May open or close anywhere Opens at 20° before top dead center and closes at 35° after the bottom dead center Opens at 10° after top dead center and closes 20° before the bottom dead center Opens at top dead center and closes at bottom dead center May open or close anywhere Opens at 20° before top dead center and closes at 35° after the bottom dead center ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Number of working strokes per min. for a four stroke cycle engine are _________ the speed of the engine in r.p.m. One-half Equal to Four-times Twice One-half Equal to Four-times Twice ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The ratio of the volume of charge admitted at N.T.P. to the swept volume of the piston is called Mechanical efficiency Relative efficiency Volumetric efficiency Overall efficiency Mechanical efficiency Relative efficiency Volumetric efficiency Overall efficiency ANSWER DOWNLOAD EXAMIANS APP
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