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 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 All of these ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The knocking in diesel engines may be prevented by All of these Reducing the delay period Raising the compression ratio Increasing the inlet pressure of air All of these Reducing the delay period Raising the compression ratio Increasing the inlet pressure of air ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In a four stroke cycle diesel engine, the exhaust valve Opens at 30° after bottom dead centre and closes at 10° before top dead centre May open and close anywhere Opens at bottom dead centre and closes at top dead centre Opens at 30° before bottom dead centre and closes at 10° after top dead centre Opens at 30° after bottom dead centre and closes at 10° before top dead centre May open and close anywhere Opens at bottom dead centre and closes at top dead centre Opens at 30° before bottom dead centre and closes at 10° after top dead centre ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In a four stroke cycle petrol engine, the compression Starts at 40° before bottom dead centre and ends at 30° after bottom dead centre Starts at bottom dead centre and ends at top dead centre May start and end anywhere Starts at 40° after bottom dead centre and ends at 30° before top dead centre Starts at 40° before bottom dead centre and ends at 30° after bottom dead centre Starts at bottom dead centre and ends at top dead centre May start and end anywhere Starts at 40° after bottom dead centre and ends at 30° before top dead centre ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The theoretically correct mixture of air and petrol is 15 : 1 20 : 1 25 : 1 10 : 1 15 : 1 20 : 1 25 : 1 10 : 1 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Fuel consumption of diesel engines is not guaranteed at one quarter load because at such low loads The engine is rarely operated The friction is high The small difference in cooling water temperature or in internal friction has a disproportionate effect The friction is unpredictable The engine is rarely operated The friction is high The small difference in cooling water temperature or in internal friction has a disproportionate effect The friction is unpredictable ANSWER DOWNLOAD EXAMIANS APP
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