If a engine working on Otto cycle has its compression ratio raised from 5 to 6 the percentage increase in air standard efficiency will be

Related MCQs

• If the pressures at the beginning and end of compression in an Otto cycle engine are 1 kg/cm2 and 8 kg/cm2 respectively the air standard efficiency will be
• Thermal efficiency of a standard Otto cycle for a compression ratio 5.5, will be
• The thermal efficiency of a dual cycle engine with fixed compression ratio and fixed quantity of het and with increase in pressure ratio, will
• Which one of the following assumptions is not involved while deriving relation for air standard efficiency of Otto cycle?
• The air standard efficiency of a turbine cycle is 56.5%, which one of the following may be Carnot efficiency between the temperature limits of the cycle?
• A gas turbine cycle operates through pressures ratio of 5. Air enters the compressor at atmospheric pressure and 25?C and entry to the turbine is at 800?C. The thermal efficiency of the plant has been found to be 37%. Now, if compressor and turbine efficiencies of 80% are taken into account, the value, of thermal efficiency will be
• The mean effective pressure of a diesel cycle having fixed compression ratio will increase if cut off ratio will
• Air fuel ratio in a petrol engine fitted with dirty air cleaner as compared to that with clean air clearance will be
• Highest useful compression ratio is the compression ratio at which
• As the compression ratio increases the volumetric efficiency of air compressor