Internal Combustion Engines The knocking tendency in spark ignition engines may be decreased by 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 Controlling the ignition timing Controlling the air-fuel mixture 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 Heating incoming air Scavenging Feeding more fuel Supercharging Heating incoming air Scavenging Feeding more fuel Supercharging ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The ignition of the charge by some hot surface within the engine before the passage of spark is called Pre-ignition Ignition delay Detonation Auto-ignition Pre-ignition Ignition delay Detonation Auto-ignition ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The air standard efficiency of an I.C. engine depends on None of these Speed of engine Compression ratio Fuel used None of these Speed of engine Compression ratio Fuel used ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The ignition quality of petrol is expressed by All of these Calorific value Octane number Cetane number All of these Calorific value Octane number Cetane number ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The colour of exhaust from diesel engine is generally Black White Bluish Violet Black White Bluish Violet ANSWER DOWNLOAD EXAMIANS APP