A vehicle powered by a spark ignition engine follows air standard Otto cycle ( = 1.4). The engine generates 70 kW while consuming 10.3 kg/hr of fuel. The calorific value of fuel is 44000 kJ/kg. The compression ratio is (correct to two decimal places).

A vehicle powered by a spark ignition engine follows air standard Otto

1.	A vehicle powered by a spark ignition engine follows air standard Otto cycle ( = 1.4). The engine generates 70 kW while consuming 10.3 kg/hr of fuel. The calorific value of fuel is 44000 kJ/kg. The compression ratio is (correct to two decimal places).
A.	= 8
B.	= 8.61
C.	= 7.61
D.	= 9
Answer» D. = 9

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A vehicle powered by a spark ignition engine follows air standard Otto cycle ( = 1.4). The engine generates 70 kW while consuming 10.3 kg/hr of fuel. The calorific value of fuel is 44000 kJ/kg. The compression ratio is (correct to two decimal places).

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