Topics: Thermodynamics, internal combustion engines, air standard cycle, fuel-air cycle, actual cycle, combustion in S.I engines, Combustion in C.I engines, air capacity of four stroke engines, two stroke engines, chemical thermodynamics, fuel, fuel/air mixture requirement, carburetion, carburetors, fuel injection systems, ignition systems, engine friction, lubrication, supercharging of I.C engines, testing of I.C Engines, performance of I.C engines, air pollution, duel-fuel engine, multi-fuel engine, stratified charge engine, stirling engine