Internal Combustion Engines In petrol engine, using a fixed octane rating fuel and fixed compression ratio, supercharging will _________ the knocking tendency. Increase Decrease Not effected None of these Increase Decrease Not effected None of these 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 Detonation Ignition delay Pre-ignition Auto-ignition Detonation Ignition delay Pre-ignition Auto-ignition ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The firing order in an I.C. engine depends upon Arrangement of the cylinders All of these Design of crankshaft Number of cylinders Arrangement of the cylinders All of these Design of crankshaft Number of cylinders ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In a cycle, the spark lasts roughly for 1 sec 0.001 sec 0.01 sec 0.1 sec 1 sec 0.001 sec 0.01 sec 0.1 sec ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The air standard efficiency of an I.C. engine is given by (where r = Compression ratio, and γ = Ratio of specific heats) None of these 1 - rγ - 1 1 + rγ - 1 1 - (1/rγ - 1) None of these 1 - rγ - 1 1 + rγ - 1 1 - (1/rγ - 1) ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Crankcase explosion in I.C. engines usually occurs as Never occurs First a mild explosion followed by a bi explosion First a big explosion followed by a mil explosion Both mild and big explosions occurs simultaneously Never occurs First a mild explosion followed by a bi explosion First a big explosion followed by a mil explosion Both mild and big explosions occurs simultaneously ANSWER DOWNLOAD EXAMIANS APP
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