单选题Which factor determines the ring dam size for a fuel oil, tubular bowl type, centrifugal purifier?（）AThe viscosity off the fuelBThe quantity of water to be removed from the fuelCThe specific gravity of the fuelDThe quantity of dirt to be removed from the fuel
单选题
Which factor determines the ring dam size for a fuel oil, tubular bowl type, centrifugal purifier?（）
A
The viscosity off the fuel
B
The quantity of water to be removed from the fuel
C
The specific gravity of the fuel
D
The quantity of dirt to be removed from the fuel
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