Internal Combustion Engines The _________ engines can work on very lean mixture of fuel. None of these Spark ignition Compression ignition Both (A) and (B) None of these Spark ignition Compression ignition Both (A) and (B) ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The increase of cooling water temperature in petrol engine will _________ the knocking tendency. Decrease Not effect None of these Increase Decrease Not effect None of these Increase ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The reason for supercharging in any engine is to Effect fuel economy Increase efficiency Reduce weight and bulk for a given output Increase power Effect fuel economy Increase efficiency Reduce weight and bulk for a given output Increase power 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 Opens at 50° before bottom dead center and closes at 15° after 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 bottom dead center and closes at top dead center Opens at 50° before bottom dead center and closes at 15° after top dead center May open and close anywhere Opens at 50° after bottom dead center and closes at 15° before top dead center ANSWER DOWNLOAD EXAMIANS APP
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‚) Vâ‚€/(Vâ‚€ + Vâ‚) (Vâ‚€/Vâ‚)/ [1 + (Vâ‚€/Vâ‚)²] [2(Vâ‚€/Vâ‚)]/ [1 + (Vâ‚€/Vâ‚)²] Vâ‚/(Vâ‚€ + Vâ‚) Vâ‚€/(Vâ‚€ + Vâ‚) (Vâ‚€/Vâ‚)/ [1 + (Vâ‚€/Vâ‚)²] [2(Vâ‚€/Vâ‚)]/ [1 + (Vâ‚€/Vâ‚)²] ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In order to prevent knocking in spark ignition engines, the charge away from the spark plug should have Low temperature Long ignition delay Low density All of these Low temperature Long ignition delay Low density All of these ANSWER DOWNLOAD EXAMIANS APP
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