Internal Combustion Engines Which of the following statement is correct regarding petrol engines? The fuel is first evaporated after passing through a carburettor and is mixed with air before ignition All of these 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 A fine fuel spray mixed with air is ignited by the heat of compression which is at a high pressure The fuel is first evaporated after passing through a carburettor and is mixed with air before ignition All of these 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 A fine fuel spray mixed with air is ignited by the heat of compression which is at a high pressure ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Supercharging is the process of Injecting excess fuel for raising more loads Supplying the intake of an engine with air at a density greater than the density of the surrounding atmosphere Supplying compressed air to remove combustion products fully Providing forced cooling air Injecting excess fuel for raising more loads Supplying the intake of an engine with air at a density greater than the density of the surrounding atmosphere Supplying compressed air to remove combustion products fully Providing forced cooling air ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The cam shaft of a four stroke I.C. engine running at 1500 rpm will run at 750 rpm 1500 rpm Any value independent of engine speed 3000 rpm 750 rpm 1500 rpm Any value independent of engine speed 3000 rpm ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines If the intake air temperature of I.C. engine increases, its efficiency will Decrease None of these Remain same Increase Decrease None of these Remain same Increase 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 In a petrol engine, the fuel supplied to the engine cylinder is mixed with required quantity of air and the mixture is ignited with a Fuel pump None of these Fuel injector Spark plug Fuel pump None of these Fuel injector Spark plug ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS