A 4 - cylinder, 4 - stroke single acting petrol engine consumes 6 kg o – McqOptions

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1.	A 4 - cylinder, 4 - stroke single acting petrol engine consumes 6 kg of fuel per minute at 800 rpm when the air - fuel ratio of the mixture supplied is 9 : 1. The temperature is 650 K and pressure is 12.5 bar at the end of compression stroke. Take R = 300 Nm/kg.K, diameter of cylinder as 8 cm, stroke of cylinder as 10 cm. The compression ratio will be nearly
A.	6.2
B.	5.7
C.	5.2
D.	4.6
Answer» B. 5.7

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