railway RRB JE (CBT I + CBT II) Mock Test 2024 Internal Combustion Engine Fuels and Combustion Stoichiometric Air Fuel Ratio
The normal operating range of air/fuel ratio for a CI engine with diesel fuel is
1
8 : 1 to 12 : 1
2
12 : 1 to 22 : 1
3
20 : 1 to 30 : 1
4
18 : 1 to 70 : 1