Internal Combustion Engines The knocking tendency in spark ignition engines may be decreased by Reducing the compression ratio Controlling the ignition timing Controlling the air-fuel mixture Controlling the exhaust temperature Reducing the compression ratio Controlling the ignition timing Controlling the air-fuel mixture Controlling the exhaust temperature ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines A diesel engine is ___ as compared to petrol engine, both running at rated load. Equally efficient None of the listed here More efficient Less efficient Equally efficient None of the listed here More efficient Less efficient ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines As compared to air standard cycle, in actual working, the effect of variation in specific heats is to Increase maximum pressure and decrease maximum temperature Reduce maximum pressure and maximum temperature Decrease maximum pressure and increase maximum temperature Increase maximum pressure and maximum temperature Increase maximum pressure and decrease maximum temperature Reduce maximum pressure and maximum temperature Decrease maximum pressure and increase maximum temperature Increase maximum pressure and maximum temperature ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The air standard efficiency of an Otto cycle compared to diesel cycle for the given compression ratio is More Less More or less depending on power rating Same More Less More or less depending on power rating Same 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. Twice Equal to One-half Four-times Twice Equal to One-half Four-times ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The air-fuel ratio in petrol engines is controlled by Controlling valve opening/closing Governing Carburetion Injection Controlling valve opening/closing Governing Carburetion Injection ANSWER DOWNLOAD EXAMIANS APP
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