If an IC engine consumes fuel at the rate of 1 g/s and if the air-fuel ratio for it is 20, the mass flow rate of exhaust gas in g/s is:
1
19
2
21
3
1
4
20
If an IC engine consumes fuel at the rate of 1 g/s and if the air-fuel ratio for it is 20, the mass flow rate of exhaust gas in g/s is: