Internal Combustion Engines The cetane number of diesel oil, generally available, is 20 to 25 40 to 55 30 to 40 25 to 30 20 to 25 40 to 55 30 to 40 25 to 30 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The exhaust valve in a four stroke cycle petrol engine Opens at bottom dead center and closes at top dead center May open and close anywhere Opens at 50° after bottom dead center and closes at 15° before top dead center Opens at 50° before bottom dead center and closes at 15° after top dead center Opens at bottom dead center and closes at top dead center May open and close anywhere Opens at 50° after bottom dead center and closes at 15° before top dead center Opens at 50° before bottom dead center and closes at 15° after top dead center ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The air standard efficiency of an I.C. engine depends on Speed of engine Compression ratio Fuel used None of these Speed of engine Compression ratio Fuel used None of these ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The ratio of the work obtained at the crankshaft in a given time to the energy supplied during the same time is called Volumetric efficiency Overall efficiency Indicated thermal efficiency Mechanical efficiency Volumetric efficiency Overall efficiency Indicated thermal efficiency Mechanical efficiency ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Pre-ignition is caused by the spontaneous combustion of the mixture before the end of the compression stroke, and is due to Any one of the listed here Cylinder walls being too hot Red hot carbon deposits on cylinder walls Overheated spark plug points Any one of the listed here Cylinder walls being too hot Red hot carbon deposits on cylinder walls Overheated spark plug points ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Supercharging is the process of supplying the intake air to the engine cylinder at a density ___ the density of the surrounding atmosphere. Equal to Greater than None of the listed here Less than Equal to Greater than None of the listed here Less than ANSWER DOWNLOAD EXAMIANS APP
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