| You are cleaning the tanks after carrying a cargo of
crude oil. Which statement is TRUE? |
| A) Washing water should
be recirculated if possible because it has the same electric potential as the cargo tank being cleaned. |
| B) The hoses to portable
cleaning machines should be disconnected before the machines are
removed from the tank. |
| C) The principal hazard
with steaming cargo tanks is raising the ambient temperature above the flame point of the cargo residue. |
| D) Steam cleaning and water washing are both capable of generating electrostatic charges within a tank. |
