Internal Combustion Engines Crankcase explosion in I.C. engines usually occurs as Both mild and big explosions occurs simultaneously First a big explosion followed by a mil explosion Never occurs First a mild explosion followed by a bi explosion Both mild and big explosions occurs simultaneously First a big explosion followed by a mil explosion Never occurs First a mild explosion followed by a bi explosion ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The expansion of fuel in a four stroke cycle diesel engine May start and end anywhere Starts at 15° after top dead center and ends at 30° before bottom dead center 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 May start and end anywhere Starts at 15° after top dead center and ends at 30° before bottom dead center 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 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 Ignition delay Detonation Auto-ignition Pre-ignition Ignition delay Detonation Auto-ignition Pre-ignition ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The thermal efficiency of a diesel cycle having fixed compression ratio, with increase in cut-off ratio will Be independent Decrease May increase or decrease depending on other factors Increase Be independent Decrease May increase or decrease depending on other factors Increase ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines If the compression ratio in I.C. engine increases, then its thermal efficiency will Remain same Increase None of these Decrease Remain same Increase None of these Decrease ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The ratio of the brake power to the indicated power is called Mechanical efficiency Overall efficiency Indicated thermal efficiency Volumetric efficiency Mechanical efficiency Overall efficiency Indicated thermal efficiency Volumetric efficiency ANSWER DOWNLOAD EXAMIANS APP
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