Internal Combustion Engines Pre-ignition is caused by the spontaneous combustion of the mixture before the end of the compression stroke, and is due to Overheated spark plug points Any one of the listed here Red hot carbon deposits on cylinder walls Cylinder walls being too hot Overheated spark plug points Any one of the listed here Red hot carbon deposits on cylinder walls Cylinder walls being too hot ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The compensating jet in a carburettor supplies almost constant amount of petrol at all speeds because the Jet area is automatically varied depending on the suction Flow is produced due to the static head in the float chamber The flow from the main jet is diverted to the compensating jet with increase in speed The diameter of the jet is constant and the discharge coefficient is invariant Jet area is automatically varied depending on the suction Flow is produced due to the static head in the float chamber The flow from the main jet is diverted to the compensating jet with increase in speed The diameter of the jet is constant and the discharge coefficient is invariant ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The expansion of fuel in a four stroke cycle diesel engine Starts at 15° before top dead center and ends at 30° after top dead center Starts at top dead center and ends at 30° after top dead center Starts at 15° after top dead center and ends at 30° before bottom dead center May start and end anywhere Starts at 15° before top dead center and ends at 30° after top dead center Starts at top dead center and ends at 30° after top dead center Starts at 15° after top dead center and ends at 30° before bottom dead center May start and end anywhere ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Pick up the wrong statement about supercharging Supercharging reduces knocking in diesel engines Supercharging results in fuel economy Supercharging at high altitudes is essential There can be limited supercharging in petrol engines because of detonation Supercharging reduces knocking in diesel engines Supercharging results in fuel economy Supercharging at high altitudes is essential There can be limited supercharging in petrol engines because of detonation ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The tangential velocity of the water element having a free vortex is Inversely proportional to its (distance)2 from the centre Directly proportional to its (distance)2 from the centre Inversely proportional to its distance from the centre Directly proportional to its distance from the centre Inversely proportional to its (distance)2 from the centre Directly proportional to its (distance)2 from the centre Inversely proportional to its distance from the centre Directly proportional to its distance from the centre ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The working cycle in case of four stroke engine is completed in following number of revolutions of crankshaft 2 43832 1 4 2 43832 1 4 ANSWER DOWNLOAD EXAMIANS APP
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