Internal Combustion Engines Stoichiometric ratio is Chemically correct air-fuel ratio by volume None of these Actual air-fuel ratio for maximum efficiency Chemically correct air-fuel ratio by weight Chemically correct air-fuel ratio by volume None of these Actual air-fuel ratio for maximum efficiency Chemically correct air-fuel ratio by weight ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The normal heptane (C₇H₁₆) is given a rating of ________ octane number. 0 120 100 50 0 120 100 50 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The thermal efficiency of diesel engines on weak mixtures is Lower Unaffected Dependent on other factors Higher Lower Unaffected Dependent on other factors Higher ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The temperature of interior surface of cylinder wall in normal operation is not allowed to exceed 120°C 240°C 180°C 80°C 120°C 240°C 180°C 80°C ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The increase of cooling water temperature in petrol engine will _________ the knocking tendency. Increase Decrease None of these Not effect Increase Decrease None of these Not effect ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines A gas engine has a swept volume of 300 cm3 and clearance volume of 25 cm3. Its volumetric efficiency is 0.88 and mechanical efficiency is 0.90. The volume of the mixture taken in per stroke is 286 cm3 252 cm3 248 cm3 264 cm3 286 cm3 252 cm3 248 cm3 264 cm3 ANSWER DOWNLOAD EXAMIANS APP
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