Internal Combustion Engines The reason for supercharging in any engine is to Increase power Reduce weight and bulk for a given output Increase efficiency Effect fuel economy Increase power Reduce weight and bulk for a given output Increase efficiency Effect fuel economy ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Does the supply of scavenging air at a density greater than that of atmosphere mean engine is supercharged? Unpredictable No Yes To some extent Unpredictable No Yes To some extent ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In a typical medium speed, 4-stroke cycle diesel engine Fuel injection starts at top dead center and ends at 20° after top dead center May start and end anywhere Fuel injection starts at just before top dead center and ends just after top dead center Fuel injection starts at 10° before top dead center and ends at 20° after top dead center Fuel injection starts at top dead center and ends at 20° after top dead center May start and end anywhere Fuel injection starts at just before top dead center and ends just after top dead center Fuel injection starts at 10° before top dead center and ends at 20° after top dead center ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The normal heptane (C₇Hâ‚₆) is given a rating of ________ octane number. 120 100 50 120 100 50 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines If V₁ is the jet velocity and V₀ is the vehicle velocity, then the propulsive efficiency of a rocket is given by V₁/(V₀ + V₁) (V₀/V₁)/ [1 + (V₀/V₁)²] V₀/(V₀ + V₁) [2(V₀/V₁)]/ [1 + (V₀/V₁)²] V₁/(V₀ + V₁) (V₀/V₁)/ [1 + (V₀/V₁)²] V₀/(V₀ + V₁) [2(V₀/V₁)]/ [1 + (V₀/V₁)²] ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines A stoichiometric air-fuel ratio is Chemically correct mixture Lean mixture Rich mixture for over loads Rich mixture for idling Chemically correct mixture Lean mixture Rich mixture for over loads Rich mixture for idling ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS