Internal Combustion Engines The working pressure and temperature inside the cylinder of an internal combustion engine is _________ as compared to a steam engine. Low High Very low Very high Low High Very low Very high ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Pre-ignition is caused by the spontaneous combustion of the mixture before the end of the compression stroke, and is due to Any one of the listed here Red hot carbon deposits on cylinder walls Cylinder walls being too hot Overheated spark plug points Any one of the listed here Red hot carbon deposits on cylinder walls Cylinder walls being too hot Overheated spark plug points ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The compensating jet in a carburettor supplies almost constant amount of petrol at all speeds because the Flow is produced due to the static head in the float chamber The diameter of the jet is constant and the discharge coefficient is invariant Jet area is automatically varied depending on the suction The flow from the main jet is diverted to the compensating jet with increase in speed Flow is produced due to the static head in the float chamber The diameter of the jet is constant and the discharge coefficient is invariant Jet area is automatically varied depending on the suction The flow from the main jet is diverted to the compensating jet with increase in speed 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) All of these P = [(W - S) π (D + d) N]/60 watts P = [(W - S) πDN]/60 watts P = (Wl × 2πN)/60 watts All of these P = [(W - S) π (D + d) N]/60 watts P = [(W - S) πDN]/60 watts P = (Wl × 2πN)/60 watts ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Compression ratio of I.C. Engines is Ratio of pressure after compression and before compression Swept volume/cylinder volume The ratio of volumes of air in cylinder before compression stroke and after compression stroke Volume displaced by piston per stroke and clearance volume in cylinder Ratio of pressure after compression and before compression Swept volume/cylinder volume The ratio of volumes of air in cylinder before compression stroke and after compression stroke Volume displaced by piston per stroke and clearance volume in cylinder ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In a four stroke cycle, the minimum temperature inside the engine cylinder occurs at the Beginning of suction stroke Beginning of exhaust stroke End of exhaust stroke End of suction stroke Beginning of suction stroke Beginning of exhaust stroke End of exhaust stroke End of suction stroke ANSWER DOWNLOAD EXAMIANS APP
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