Internal Combustion Engines The knocking tendency in compression ignition engines for a given fuel will be Enhanced by decreasing compression ratio None of these Enhanced by increasing compression ratio Dependent on other factors Enhanced by decreasing compression ratio None of these Enhanced by increasing compression ratio Dependent on other factors ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The air-fuel ratio in petrol engines is controlled by Controlling valve opening/closing Injection Governing Carburetion Controlling valve opening/closing Injection Governing Carburetion 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 It is properly designed Cannot work as it is impossible Flywheel size is proper Best quality fuel is used It is properly designed Cannot work as it is impossible Flywheel size is proper Best quality fuel is used ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The pressure at the end of compression, in petrol engines, is approximately 35 bar 25 bar 20 bar 10 bar 35 bar 25 bar 20 bar 10 bar ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The exhaust valve in a four stroke cycle petrol engine Opens at 50° before bottom dead center and closes at 15° after top dead center Opens at 50° after bottom dead center and closes at 15° before top dead center May open and close anywhere Opens at bottom dead center and closes at top dead center Opens at 50° before bottom dead center and closes at 15° after top dead center Opens at 50° after bottom dead center and closes at 15° before top dead center May open and close anywhere Opens at bottom dead center and closes at top dead center ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Supercharging is essential in Gas turbines Aircraft engines Petrol engines Diesel engines Gas turbines Aircraft engines Petrol engines Diesel engines ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS