Internal Combustion Engines The knocking tendency in spark ignition engines may be decreased by Controlling the ignition timing Controlling the air-fuel mixture Reducing the compression ratio Controlling the exhaust temperature Controlling the ignition timing Controlling the air-fuel mixture Reducing the compression ratio Controlling the exhaust temperature ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The specific fuel consumption of a petrol engine compared to diesel engine of same H.P. is More Less or more depending on operating conditions Same Less More Less or more depending on operating conditions Same Less ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines If Vâ‚ is the jet velocity and Vâ‚€ is the vehicle velocity, then the propulsive efficiency of a rocket is given by [2(Vâ‚€/Vâ‚)]/ [1 + (Vâ‚€/Vâ‚)²] Vâ‚/(Vâ‚€ + Vâ‚) (Vâ‚€/Vâ‚)/ [1 + (Vâ‚€/Vâ‚)²] Vâ‚€/(Vâ‚€ + Vâ‚) [2(Vâ‚€/Vâ‚)]/ [1 + (Vâ‚€/Vâ‚)²] Vâ‚/(Vâ‚€ + Vâ‚) (Vâ‚€/Vâ‚)/ [1 + (Vâ‚€/Vâ‚)²] Vâ‚€/(Vâ‚€ + Vâ‚) ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The thermal efficiency of diesel engines on weak mixtures is Unaffected Lower Dependent on other factors Higher Unaffected Lower Dependent on other factors Higher ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Which of the following statement is correct regarding petrol engines? All of these The fuel supplied to the engine cylinder is mixed with necessary amount of air and the mixture in ignited with the help of a spark plug The fuel is first evaporated after passing through a carburettor and is mixed with air before ignition A fine fuel spray mixed with air is ignited by the heat of compression which is at a high pressure All of these The fuel supplied to the engine cylinder is mixed with necessary amount of air and the mixture in ignited with the help of a spark plug The fuel is first evaporated after passing through a carburettor and is mixed with air before ignition A fine fuel spray mixed with air is ignited by the heat of compression which is at a high pressure ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In a four stroke cycle petrol engine, the pressure inside the engine cylinder during the suction stroke is __________ the atmospheric pressure. Below None of these Above Equal to Below None of these Above Equal to ANSWER DOWNLOAD EXAMIANS APP
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