Internal Combustion Engines In a four stroke cycle diesel engine, the inlet valve Opens at top dead center and closes at bottom dead center Opens at 20° before top dead center and closes at 40° after bottom dead center May open and close anywhere Opens at 20° 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 20° before top dead center and closes at 40° after bottom dead center May open and close anywhere Opens at 20° after top dead center and closes at 20° before bottom dead center ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The correct mixture strength (by weight) for petrol is about 14.6 : 1 20.4 : 1 18.5 : 1 22.6 : 1 14.6 : 1 20.4 : 1 18.5 : 1 22.6 : 1 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The purpose of testing an internal combustion engine is All of these To determine the information, which cannot be obtained by calculations To satisfy the customer regarding the performance of the engine To conform the data used in design, the validity of which may be doubtful All of these To determine the information, which cannot be obtained by calculations To satisfy the customer regarding the performance of the engine To conform the data used in design, the validity of which may be doubtful 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 Detonation Formation of hard coating on piston skirts Oil sludge in the engine crank case Piston ring and cylinder wear Detonation Formation of hard coating on piston skirts 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 264 cm3 286 cm3 252 cm3 248 cm3 264 cm3 286 cm3 252 cm3 248 cm3 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The minimum cranking speed in case of petrol engine is about 250 - 300 rpm Half the operating speed One fourth of operating speed 60 - 80 rpm 250 - 300 rpm Half the operating speed One fourth of operating speed 60 - 80 rpm ANSWER DOWNLOAD EXAMIANS APP
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