Internal Combustion Engines If Vâ‚ is the jet velocity and Vâ‚€ is the vehicle velocity, then the propulsive efficiency of a rocket is given by Vâ‚/(Vâ‚€ + Vâ‚) [2(Vâ‚€/Vâ‚)]/ [1 + (Vâ‚€/Vâ‚)²] (Vâ‚€/Vâ‚)/ [1 + (Vâ‚€/Vâ‚)²] Vâ‚€/(Vâ‚€ + Vâ‚) Vâ‚/(Vâ‚€ + Vâ‚) [2(Vâ‚€/Vâ‚)]/ [1 + (Vâ‚€/Vâ‚)²] (Vâ‚€/Vâ‚)/ [1 + (Vâ‚€/Vâ‚)²] Vâ‚€/(Vâ‚€ + Vâ‚) ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The cetane number of diesel oil, generally available, is 25 to 30 30 to 40 40 to 55 20 to 25 25 to 30 30 to 40 40 to 55 20 to 25 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The actual volume of fresh charge admitted in 4-stroke petrol engine is Less than stroke volume More than stroke volume Equal to stroke volume and clearance volume Equal to stroke volume Less than stroke volume More than stroke volume Equal to stroke volume and clearance volume Equal to stroke volume ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The exhaust valve in a four stroke cycle petrol engine Opens at bottom dead center and closes at top dead center May open and close anywhere Opens at 50° after bottom dead center and closes at 15° before top dead center Opens at 50° before bottom dead center and closes at 15° after top dead center Opens at bottom dead center and closes at top dead center May open and close anywhere Opens at 50° after bottom dead center and closes at 15° before top dead center Opens at 50° before bottom dead center and closes at 15° after top dead center ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Supercharging is the process of supplying the intake air to the engine cylinder at a density ___ the density of the surrounding atmosphere. Greater than Equal to Less than None of the listed here Greater than Equal to Less than None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The temperature of interior surface of cylinder wall in normal operation is not allowed to exceed 180°C 80°C 120°C 240°C 180°C 80°C 120°C 240°C ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS