Internal Combustion Engines Air fuel ratio at which a petrol engine cannot work is 20 : 1 and less 0.62569444444444 0.41736111111111 0.33402777777778 20 : 1 and less 0.62569444444444 0.41736111111111 0.33402777777778 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 Detonation 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 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Which of the following medium is compressed in a Diesel engine cylinder? Fuel alone Air alone Air and fuel Air and lub oil Fuel alone Air alone Air and fuel Air and lub oil ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Detonation is harmful due to High intensity of knock causes crankshaft vibration and the engine runs rough None of these Increase in the rate of heat transfer, there is a reduction in the power output and efficiency of the engine Excessive turbulence which removes most of the insulating gas boundary layer from the cylinder walls High intensity of knock causes crankshaft vibration and the engine runs rough None of these Increase in the rate of heat transfer, there is a reduction in the power output and efficiency of the engine Excessive turbulence which removes most of the insulating gas boundary layer from the cylinder walls ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In a typical medium speed, 4-stroke cycle diesel engine May start and end anywhere Fuel injection starts at just before top dead center and ends just after top dead center Fuel injection starts at top dead center and ends at 20° after top dead center Fuel injection starts at 10° before top dead center and ends at 20° after top dead center May start and end anywhere Fuel injection starts at just before top dead center and ends just after top dead center Fuel injection starts at top dead center and ends at 20° after top dead center Fuel injection starts at 10° before top dead center and ends at 20° after top dead center ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The effective inhibitor of pre-ignition is Alcohol None of these Lead Water Alcohol None of these Lead Water ANSWER DOWNLOAD EXAMIANS APP
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