Internal Combustion Engines The normal heptane (C₇H₁₆) is given a rating of ________ octane number. 120 100 50 0 120 100 50 0 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The mechanical efficiency (ηm) of the engine is given by ηm = I.P/B.P ηm = B.P/I.P None of these ηm = (B.P × I.P)/100 ηm = I.P/B.P ηm = B.P/I.P None of these ηm = (B.P × I.P)/100 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Which of the following statement is correct regarding petrol engines? The fuel is first evaporated after passing through a carburettor and is mixed with air before ignition The fuel supplied to the engine cylinder is mixed with necessary amount of air and the mixture in ignited with the help of a spark plug A fine fuel spray mixed with air is ignited by the heat of compression which is at a high pressure All of these The fuel is first evaporated after passing through a carburettor and is mixed with air before ignition The fuel supplied to the engine cylinder is mixed with necessary amount of air and the mixture in ignited with the help of a spark plug A fine fuel spray mixed with air is ignited by the heat of compression which is at a high pressure All of these ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Installation of supercharger on a four cycle diesel engine can result in the following percentage increase in power Up to 100% Up to 75% Up to 35% Up to 50% Up to 100% Up to 75% Up to 35% Up to 50% ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The pressure at the end of compression in the case of diesel engine is of the order of 35 kg/cm 12 kg/cm 6 kg/cm 20 kg/cm 35 kg/cm 12 kg/cm 6 kg/cm 20 kg/cm ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In a coil ignition system of petrol engines, a condenser is connected across the contact breaker in order to Both (A) and (B) Cause more rapid break of the primary current, giving a higher voltage in the secondary circuit None of these Prevent sparking across the gap between the points Both (A) and (B) Cause more rapid break of the primary current, giving a higher voltage in the secondary circuit None of these Prevent sparking across the gap between the points ANSWER DOWNLOAD EXAMIANS APP
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