Internal Combustion Engines Iso-octane (C₈H₁₈) has octane number of 50 120 0 100 50 120 0 100 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines It the temperature of intake air in IC engines is lowered, then its efficiency will Decrease Increase up to certain limit and then decrease Remain same Increase Decrease Increase up to certain limit and then decrease Remain same Increase ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The knock in diesel engine occurs due to Instantaneous auto ignition of last part of charge Delayed burning of the first part of the charge Reduction of delay period Instantaneous and rapid burning of the first part of the charge Instantaneous auto ignition of last part of charge Delayed burning of the first part of the charge Reduction of delay period Instantaneous and rapid burning of the first part of the charge ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines A two stroke cycle engine gives ________ the number of power strokes as compared to the four stroke cycle engine, at the same engine speed. Half Four times Double Same Half Four times Double Same ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The cetane number of diesel oil, generally available, is 40 to 55 25 to 30 20 to 25 30 to 40 40 to 55 25 to 30 20 to 25 30 to 40 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 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] V₁/(V₀ + V₁) (V₀/V₁)/ [1 + (V₀/V₁)²] ANSWER DOWNLOAD EXAMIANS APP
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