Internal Combustion Engines In a typical medium speed 4-stroke cycle diesel engines May open and close anywhere Exhaust valve opens at bottom dead center and closes at top dead center Exhaust valve opens just after bottom dead center and closes just before top dead center Exhaust valve opens at 35° before bottom dead center and closes at 20° after top dead center May open and close anywhere Exhaust valve opens at bottom dead center and closes at top dead center Exhaust valve opens just after bottom dead center and closes just before top dead center Exhaust valve opens at 35° before bottom dead center and closes at 20° after top dead center 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 Red hot carbon deposits on cylinder walls Cylinder walls being too hot Overheated spark plug points Any one of the listed here Red hot carbon deposits on cylinder walls Cylinder walls being too hot Overheated spark plug points Any one of the listed here ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Diesel fuel, compared to petrol is Less difficult to ignite Highly ignitable Just about the same difficult to ignite More difficult to ignite Less difficult to ignite Highly ignitable Just about the same difficult to ignite More difficult to ignite ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The increase in intake temperature of internal combustion engines will ___ efficiency. Increase None of the listed here Have no effect on Decrease Increase None of the listed here Have no effect on Decrease ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Which of the following statement is correct regarding normal cetane? It is a standard fuel used for knock rating of diesel engines Its chemical name is normal hexadecane All of these It has long carbon chain structure It is a standard fuel used for knock rating of diesel engines Its chemical name is normal hexadecane All of these It has long carbon chain structure ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Does the supply of scavenging air at a density greater than that of atmosphere mean engine is supercharged? To some extent No Unpredictable Yes To some extent No Unpredictable Yes ANSWER DOWNLOAD EXAMIANS APP
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