Internal Combustion Engines The mechanical efficiency (ηm) of the engine is given by None of these ηm = I.P/B.P ηm = (B.P × I.P)/100 ηm = B.P/I.P None of these ηm = I.P/B.P ηm = (B.P × I.P)/100 ηm = B.P/I.P 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 Which one of the following event would reduce volumetric efficiency of a vertical compression ignition engine? Exhaust valve closing after top dead center Inlet valve closing after bottom dead center Inlet valve opening before top dead center Inlet valve closing before bottom dead center Exhaust valve closing after top dead center Inlet valve closing after bottom dead center Inlet valve opening before top dead center Inlet valve closing before bottom dead center ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines If one cylinder of a diesel engine receives more fuel than the others, then for that cylinder the Exhaust will be smoky Engine starts overheating Piston rings would stick into piston grooves Scavenging occurs Exhaust will be smoky Engine starts overheating Piston rings would stick into piston grooves Scavenging occurs ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The compression ignition engines are governed by Quantitative governing Hit and miss governing Combination of (B) and (C) Qualitative governing Quantitative governing Hit and miss governing Combination of (B) and (C) Qualitative governing ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The minimum cranking speed in case of petrol engine is about 250 - 300 rpm 60 - 80 rpm Half the operating speed One fourth of operating speed 250 - 300 rpm 60 - 80 rpm Half the operating speed One fourth of operating speed ANSWER DOWNLOAD EXAMIANS APP
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