Internal Combustion Engines The thermal efficiency of petrol and gas engines is about 0.5 0.3 0.7 0.15 0.5 0.3 0.7 0.15 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The term scavenging is generally associated with Aeroplane engines 4-stroke cycle engines High efficiency engines 2-stroke cycle engines Aeroplane engines 4-stroke cycle engines High efficiency engines 2-stroke cycle engines ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In diesel engine, the compression ratio in comparison to expansion ratio is Less Same Variable More Less Same Variable More ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In a four stroke cycle petrol engine, the compression Starts at bottom dead centre and ends at top dead centre Starts at 40° after bottom dead centre and ends at 30° before top dead centre Starts at 40° before bottom dead centre and ends at 30° after bottom dead centre May start and end anywhere Starts at bottom dead centre and ends at top dead centre Starts at 40° after bottom dead centre and ends at 30° before top dead centre Starts at 40° before bottom dead centre and ends at 30° after bottom dead centre May start and end anywhere ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The brake power (B.P.) of the engine is given by (where W = Brake load or dead load in newtons, l = Length of arm in meters, N = Speed of engine in r.p.m., S = Spring balance reading in newtons, D = Dia. of brake drum in meters, and d = Dia. of rope in meters) P = (Wl × 2πN)/60 watts P = [(W - S) π (D + d) N]/60 watts P = [(W - S) πDN]/60 watts All of these P = (Wl × 2πN)/60 watts P = [(W - S) π (D + d) N]/60 watts P = [(W - S) πDN]/60 watts All of these ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The rating of a diesel engine, with increase in air inlet temperature, will Decrease linearly Increase linearly Decrease parabolically Increase parabolically Decrease linearly Increase linearly Decrease parabolically Increase parabolically ANSWER DOWNLOAD EXAMIANS APP
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