Internal Combustion Engines The mechanical efficiency (ηm) of the engine is given by ηm = (B.P × I.P)/100 None of these ηm = I.P/B.P ηm = B.P/I.P ηm = (B.P × I.P)/100 None of these ηm = I.P/B.P ηm = B.P/I.P ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The ratio of the brake power to the indicated power is called Mechanical efficiency Volumetric efficiency Indicated thermal efficiency Overall efficiency Mechanical efficiency Volumetric efficiency Indicated thermal efficiency Overall efficiency ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Which of the following is false statement?Excess quantities of sulphur in diesel fuel are Objectionable because it may cause the following Oil sludge in the engine crank case Piston ring and cylinder wear Formation of hard coating on piston skirts Detonation Oil sludge in the engine crank case Piston ring and cylinder wear Formation of hard coating on piston skirts Detonation ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The knock in diesel engine occurs due to Delayed burning of the first part of the charge Instantaneous and rapid burning of the first part of the charge Instantaneous auto ignition of last part of charge Reduction of delay period Delayed burning of the first part of the charge Instantaneous and rapid burning of the first part of the charge Instantaneous auto ignition of last part of charge Reduction of delay period ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The increase of cooling water temperature in petrol engine will _________ the knocking tendency. Decrease Increase None of these Not effect Decrease Increase None of these Not effect ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Which of the following is not an intern’s combustion engine? Steam turbine Diesel engine 4-stroke petrol engine 2-stroke petrol engine Steam turbine Diesel engine 4-stroke petrol engine 2-stroke petrol engine ANSWER DOWNLOAD EXAMIANS APP
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