Internal Combustion Engines Which of the following statement is correct regarding petrol engines? 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 All of these A fine fuel spray mixed with air is ignited by the heat of compression which is at a high pressure 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 All of these 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 expansion May start and end anywhere Starts at top dead center and ends at bottom dead center Starts at 30° after top dead center and ends at 50° after bottom dead center Starts at 30° before top dead center and ends at 50° before bottom dead center May start and end anywhere Starts at top dead center and ends at bottom dead center Starts at 30° after top dead center and ends at 50° after bottom dead center Starts at 30° before top dead center and ends at 50° before bottom dead center 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? No To some extent Yes Unpredictable No To some extent Yes Unpredictable ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The volumetric efficiency of a well designed engine may be 75 to 90% 40 to 60% 30 to 40% 60 to 70% 75 to 90% 40 to 60% 30 to 40% 60 to 70% ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines High speed compression engines operate on Dual combustion cycle Otto cycle Diesel cycle All of these Dual combustion cycle Otto cycle Diesel cycle All of these ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The output of a diesel engine can be increased without increasing the engine revolution or size in following way Supercharging Heating incoming air Scavenging Feeding more fuel Supercharging Heating incoming air Scavenging Feeding more fuel ANSWER DOWNLOAD EXAMIANS APP
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