Internal Combustion Engines The thermal efficiency of petrol and gas engines is about 0.5 0.15 0.7 0.3 0.5 0.15 0.7 0.3 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 Auto-ignition Ignition delay Detonation Pre-ignition Auto-ignition Ignition delay Detonation Pre-ignition 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 small difference in cooling water temperature or in internal friction has a disproportionate effect The engine is rarely operated The friction is high The friction is unpredictable The small difference in cooling water temperature or in internal friction has a disproportionate effect The engine is rarely operated The friction is high The friction is unpredictable 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 The reason for supercharging in any engine is to Effect fuel economy Increase power Reduce weight and bulk for a given output Increase efficiency Effect fuel economy Increase power Reduce weight and bulk for a given output Increase efficiency ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines A petrol engine, during suction stroke draws A mixture of petrol and air Petrol only None of these Air only A mixture of petrol and air Petrol only None of these Air only ANSWER DOWNLOAD EXAMIANS APP
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