Internal Combustion Engines Which of the following statement is correct regarding petrol engines? A fine fuel spray mixed with air is ignited by the heat of compression which is at a high pressure The fuel supplied to the engine cylinder is mixed with necessary amount of air and the mixture in ignited with the help of a spark plug The fuel is first evaporated after passing through a carburettor and is mixed with air before ignition All of these A fine fuel spray mixed with air is ignited by the heat of compression which is at a high pressure The fuel supplied to the engine cylinder is mixed with necessary amount of air and the mixture in ignited with the help of a spark plug The fuel is first evaporated after passing through a carburettor and is mixed with air before ignition All of these ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines A petrol engine has compression ratio from 6 to 10 10 to 15 25 to 40 15 to 25 6 to 10 10 to 15 25 to 40 15 to 25 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The probability of knocking in diesel engines is increased by All of these High self ignition temperature Higher viscosity Low volatility All of these High self ignition temperature Higher viscosity Low volatility ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The two reference fuels used for cetane rating are Cetane and tetra ethyl lead Cetane and normal heptane Cetane and iso-octane Cetane and alpha-methyl naphthalene Cetane and tetra ethyl lead Cetane and normal heptane Cetane and iso-octane Cetane and alpha-methyl naphthalene 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 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 P = [(W - S) πDN]/60 watts ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In a four stroke cycle petrol engine, the pressure inside the engine cylinder during the suction stroke is __________ the atmospheric pressure. Above Equal to Below None of these Above Equal to Below None of these ANSWER DOWNLOAD EXAMIANS APP
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