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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A.maintain a strict watch on the barge from the towing vessel
B.fly a red flag from the towing vessel
C.open the tops of all empty tanks on the barge
D.take hourly soundings of any loaded tanks on the barge
A.enter the tank safely
B.suspect the accuracy of the reading
C.ventilate the tank
D.test for nitrogen
A.A 20-foot sailing vessel
B.A 26-foot tug and tow
C.An uninspected 35-foot passenger vessel
D.A Navy Destroyer
A.Petroleum and fuel oil
B.Sludge
C.Oil mixed with dredge spoil
D.Oil refuse and oil mixed with wastes
A.Washing the tank interior with sea water
B.Application of degreasing solvents
C.Removal of corrosion products and sludge
D.Fresh air ventilation
最新試題
You are on a multiple product tanker and carrying methyl acrylate，diethanolamine，and triethylamine. Which statement is TRUE? （）
In which case is the IOPP Certificate of an inspected vessel NOT invalidated（）.
Sufficient cargo tanks shall be（）prior to each ballast voyage in order that，taking into account the tanker’s trading pattern and expected weather conditions，ballast water is put only into cargo tanks which have been crude oil washed.
No person on board any vessel to which Annex V to MARPOL 73/78 applies may discharge garbage of any type when（）.
Which step is NOT generally taken when gas-freeing a tank?（）.
Every new crude oil tanker of 20000 tons deadweight and above and every new product carrier of 30000 tons deadweight and above shall be provided with（）.
Which substance is NOT considered to be Oil under the pollution prevention regulations? （）
Whenever visible traces of oil are observed on or below the surface of the water in the immediate vicinity of ship or its wake，Governments of Parties to the Convention should，to the extent they are reasonably able to do so，promptly（）the facts bearing on the issue of whether there has been a violation of the provisions of this Regulation or Regulation 10 of this Annex of MARPOL 73/78.
While underway and towing an unmanned tank barge you are required to（）.
Which statement is TRUE concerning the ventilation of engine and fuel tank compartments on uninspected towing vessels using fuel with a flash point of 100°F?（）