单选题You are cleaning the tanks after carrying a cargo of crude oil. Which statement is TRUE? （）.AWashing water should be recirculated if possible because it has the same electric potential as the cargo tank being cleanedBThe hoses to portable cleaning machines should be disconnected before the machines are removed from the tankCThe principal hazard with steaming cargo tanks is raising the ambient temperature above the flame point of the cargo residueDSteam cleaning and water washing are both capable of generating electrostatic charges within a tank
单选题
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
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单选题You are cleaning the tanks after carrying a cargo of crude oil. Which statement is TRUE? （）AWashing water should be recirculated if possible because it has the same electric potential as the cargo tank being cleanedBThe hoses to portable cleaning machines should be disconnected before the machines are removed from the tankCThe principal hazard with steaming cargo tanks is raising the ambient temperature above the flame point of the cargo residueDSteam cleaning and water washing are both capable of generating electrostatic charges within a tank
单选题Crude oil washing of cargo tanks has the following advantages except for （）Areducing the erosion of the cargo tanksBincreasing the total quantity of oil to carryCreducing the quantity of water contained in oilDreducing cargo discharged time
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单选题Existing crude oil tankers may，（）being provided with segregated ballast tanks or operating with a cargo tank cleaning procedure using crude oil washing，operate with dedicated clean ballast tanks in accordance with the specified provision of the Regulation.Aas perBin the consequence ofCin accordance withDin lieu of
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