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 - (1/rγ - 1) None of these 1 + rγ - 1 1 - rγ - 1 1 - (1/rγ - 1) None of these 1 + rγ - 1 1 - rγ - 1 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The air-fuel ratio in petrol engines is controlled by Controlling valve opening/closing Governing Injection Carburetion Controlling valve opening/closing Governing Injection Carburetion ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The compression ignition engines are governed by Hit and miss governing Qualitative governing Quantitative governing Combination of (B) and (C) Hit and miss governing Qualitative governing Quantitative governing Combination of (B) and (C) ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Most high speed compression engines operate on Otto cycle Special type of air cycle Dual combustion cycle Diesel cycle Otto cycle Special type of air cycle Dual combustion cycle Diesel cycle ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Gaseous fuel guarantees are based on High heat value of oil Low heat value of oil Mean heat value of oil Calorific value of oil High heat value of oil Low heat value of oil Mean heat value of oil Calorific value of oil ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The fuel valve in a four stroke cycle diesel engine Opens at 15° before top dead center and closes at 20° after top dead center May open and close anywhere Opens at 15° after top dead center and closes at 20° before bottom dead center Opens at top dead center and closes at bottom dead center Opens at 15° before top dead center and closes at 20° after top dead center May open and close anywhere Opens at 15° after top dead center and closes at 20° before bottom dead center Opens at top dead center and closes at bottom dead center ANSWER DOWNLOAD EXAMIANS APP
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