Internal Combustion Engines If V₁ is the jet velocity and V₀ is the vehicle velocity, then propulsive efficiency of a turbojet engine is V₀ / (V₀ + V₁) V₁ / (V₀ + V₁) 2V₁ / (V₀ + V₁) 2V₀ / (V₀ + V₁) V₀ / (V₀ + V₁) V₁ / (V₀ + V₁) 2V₁ / (V₀ + V₁) 2V₀ / (V₀ + V₁) ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines A petrol engine has compression ratio from 10 to 15 15 to 25 25 to 40 6 to 10 10 to 15 15 to 25 25 to 40 6 to 10 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines A diesel engine as compared to petrol engine (both running and rated load) is Equally efficient More efficient Less efficient Other factors will decide it Equally efficient More efficient Less efficient Other factors will decide it 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 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 The small difference in cooling water temperature or in internal friction has a disproportionate effect The engine is rarely operated ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Does the supply of scavenging air at a density greater than that of atmosphere mean engine is supercharged? Unpredictable No To some extent Yes Unpredictable No To some extent Yes ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Scavenging air in diesel engine means Forced air for cooling cylinder Air used for forcing burnt gases out of engine's cylinder during the exhaust period Air used for combustion sent under pressure Burnt air containing products of combustion Forced air for cooling cylinder Air used for forcing burnt gases out of engine's cylinder during the exhaust period Air used for combustion sent under pressure Burnt air containing products of combustion ANSWER DOWNLOAD EXAMIANS APP
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