Internal Combustion Engines A higher compression ratio causes Pre-ignition Any one of these Acceleration in the rate of combustion Increase in detonation Pre-ignition Any one of these Acceleration in the rate of combustion Increase in detonation ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The air standard efficiency of an I.C. engine is given by (where r = Compression ratio, and γ = Ratio of specific heats) 1 + rγ - 1 1 - rγ - 1 1 - (1/rγ - 1) None of these 1 + rγ - 1 1 - rγ - 1 1 - (1/rγ - 1) None of these ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The normal heptane (C₇H₁₆) is given a rating of ________ octane number. 120 50 0 100 120 50 0 100 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The knocking in diesel engines may be prevented by All of these Increasing the inlet pressure of air Raising the compression ratio Reducing the delay period All of these Increasing the inlet pressure of air Raising the compression ratio Reducing the delay period ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Thermal efficiency of a two stroke cycle engine is ___ a four stroke cycle engine. None of the listed here Equal to Greater than Less than None of the listed here Equal to Greater than Less than ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Number of working strokes per min. for a two stroke cycle engine is ____ the speed of the engine in r.p.m. One-half Equal to Four-times Twice One-half Equal to Four-times Twice ANSWER DOWNLOAD EXAMIANS APP
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