Internal Combustion Engines The frictional power (F.P.) is given by P./I.P. F.P. = P. P. F.P. = I.P./ F.P. = I.P. - P. - I.P. F.P. = P./I.P. F.P. = P. P. F.P. = I.P./ F.P. = I.P. - P. - I.P. F.P. = ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The basic requirement of a good combustion chamber is Low compression ratio Low volumetric efficiency Minimum turbulence High thermal efficiency and power output Low compression ratio Low volumetric efficiency Minimum turbulence High thermal efficiency and power output 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 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 P = (Wl × 2πN)/60 watts P = [(W - S) π (D + d) N]/60 watts ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Diesel engine can work on very lean air fuel ratio of the order of 30: 1. A petrol engine can also work on such a lean ratio provided Best quality fuel is used Flywheel size is proper It is properly designed Cannot work as it is impossible Best quality fuel is used Flywheel size is proper It is properly designed Cannot work as it is impossible ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Alpha-methyl-naphthalene (C₁₁ H₁₀) has a cetane number of 50 100 120 0 50 100 120 0 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines It the temperature of intake air in IC engines is lowered, then its efficiency will Decrease Increase up to certain limit and then decrease Increase Remain same Decrease Increase up to certain limit and then decrease Increase Remain same ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS