Internal Combustion Engines The correct mixture strength (by weight) for petrol is about 22.6 : 1 14.6 : 1 20.4 : 1 18.5 : 1 22.6 : 1 14.6 : 1 20.4 : 1 18.5 : 1 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines If the ratios of all the corresponding linear dimensions are equal, then the model and the prototype are said to have Geometric similarity None of these Kinematic similarity Dynamic similarity Geometric similarity None of these Kinematic similarity Dynamic similarity ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Scavenging air in diesel engine means Air used for forcing burnt gases out of engine's cylinder during the exhaust period Burnt air containing products of combustion Forced air for cooling cylinder Air used for combustion sent under pressure Air used for forcing burnt gases out of engine's cylinder during the exhaust period Burnt air containing products of combustion Forced air for cooling cylinder Air used for combustion sent under pressure ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The exhaust valve in a four stroke cycle petrol engine Opens at 50° before bottom dead center and closes at 15° after top dead center Opens at 50° after bottom dead center and closes at 15° before top dead center May open and close anywhere Opens at bottom dead center and closes at top dead center Opens at 50° before bottom dead center and closes at 15° after top dead center Opens at 50° after bottom dead center and closes at 15° before top dead center May open and close anywhere Opens at bottom dead center and closes at top dead center 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 = [(W - S) πDN]/60 watts P = (Wl × 2πN)/60 watts P = [(W - S) π (D + d) N]/60 watts All of these P = [(W - S) πDN]/60 watts P = (Wl × 2πN)/60 watts P = [(W - S) π (D + d) N]/60 watts All of these ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The actual volume of fresh charge admitted in 4-stroke petrol engine is Equal to stroke volume and clearance volume More than stroke volume Less than stroke volume Equal to stroke volume Equal to stroke volume and clearance volume More than stroke volume Less than stroke volume Equal to stroke volume ANSWER DOWNLOAD EXAMIANS APP
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