Internal Combustion Engines By higher octane number of spark ignition fuel, it is meant that the fuel has Higher heating value Longer ignition delay Higher flash point Lower volatility Higher heating value Longer ignition delay Higher flash point Lower volatility ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The fuel valve in a four stroke cycle diesel engine Opens at 15° before top dead center and closes at 20° after top dead center May open and close anywhere Opens at top dead center and closes at bottom dead center Opens at 15° after top dead center and closes at 20° before bottom dead center Opens at 15° before top dead center and closes at 20° after top dead center May open and close anywhere Opens at top dead center and closes at bottom dead center Opens at 15° after top dead center and closes at 20° before bottom dead center ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The volumetric efficiency of a well designed engine may be 60 to 70% 40 to 60% 30 to 40% 75 to 90% 60 to 70% 40 to 60% 30 to 40% 75 to 90% ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The thermal efficiency of a diesel cycle having fixed compression ratio, with increase in cut-off ratio will Increase Be independent May increase or decrease depending on other factors Decrease Increase Be independent May increase or decrease depending on other factors Decrease ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The pressure at the end of compression, in diesel engines, is approximately 35 bar 25 bar 10 bar 20 bar 35 bar 25 bar 10 bar 20 bar ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines If petrol is used in a diesel engine, then Higher knocking will occur Efficiency will be low Black smoke will be produced Low power will be produced Higher knocking will occur Efficiency will be low Black smoke will be produced Low power will be produced ANSWER DOWNLOAD EXAMIANS APP
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