Internal Combustion Engines The pressure at the end of compression, in petrol engines, is approximately 10 bar 25 bar 20 bar 35 bar 10 bar 25 bar 20 bar 35 bar ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The exhaust valve in a four stroke cycle petrol engine 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 May open and close anywhere 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 Opens at bottom dead center and closes at top dead center May open and close anywhere Opens at 50° before bottom dead center and closes at 15° after top dead center ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The fuel in diesel engine is normally injected at pressure of 90-130 kg/cm² 20-25 kg/cm² 60-80 kg/cm² 5-10 kg/cm² 90-130 kg/cm² 20-25 kg/cm² 60-80 kg/cm² 5-10 kg/cm² ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The minimum cranking speed in case of petrol engine is about Half the operating speed One fourth of operating speed 60 - 80 rpm 250 - 300 rpm Half the operating speed One fourth of operating speed 60 - 80 rpm 250 - 300 rpm ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines A stoichiometric air-fuel ratio is Chemically correct mixture Rich mixture for idling Rich mixture for over loads Lean mixture Chemically correct mixture Rich mixture for idling Rich mixture for over loads Lean mixture 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] [2(V₀/V₁)]/ [1 + (V₀/V₁)²] V₀/(V₀ + V₁) V₁/(V₀ + V₁) (V₀/V₁)/ [1 + (V₀/V₁)²] [2(V₀/V₁)]/ [1 + (V₀/V₁)²] V₀/(V₀ + V₁) ANSWER DOWNLOAD EXAMIANS APP
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