（）is not a condition for a ship of 400 tons gross tonnage and above other than an oil tanker to discharge certain amount of oil or oily mixtures into the sea.

单项选择题You are on a multiple-product chemical tanker and will carry cargoes of ethanolamine，methyl acrylate，and glycerine. Which statement is true? （）

A.All of these cargoes are mutually incompatible
B.Glycerine may be stowed adjacent to methyl acrylate but must be segregated from ethanolamine
C.Methyl acrylate and ethanolamine are compatible but both must be segregated from glycerine
D.Glycerine is compatible with both of the other cargoes

单项选择题You are on a multiple-product chemical tanker and will carry cargoes of isophorone，ethylenediamine，and creosote. Which of the following is TRUE? （）

A.All of these cargoes are compatible
B.Isophorone is incompatible with ethylenediamine but may be stowed adjacent to creosote
C.All of these cargoes are incompatible
D.Ethylenediamine is compatible with isophorone but both are incompatible with creosote

单项选择题You are on a multiple-product chemical tanker and will carry cargoes of allyl alcohol，benzene，and propanolamine. Which of the following is true? （）

A.All of these cargoes are mutually compatible
B.Benzene may not be carried in a tank adjacent to either of the other two cargoes
C.Allyl alcohol is incompatible with propanolamine but both are compatible with benzene
D.Propanolamine is compatible with allyl alcohol but must be segregated from benzene

单项选择题You are on a multiple product tanker and carrying methyl acrylate，diethanolamine，and triethylamine. Which statement is TRUE? （）

A.Methyl acrylate may be loaded in a tank adjacent to diethanolamine but not triethylamine
B.The heating coils to the cargo tank loaded with methyl acrylate must be blanked off
C.Valve components made of aluminum，copper，or zinc may not be in contact with the cargoes
D.Each crew member working on deck must have an emergency escape breathing apparatus

单项选择题You are keeping the required garbage disposal records. The amount of garbage disposed must be stated in（）.

A.cubic meters
B.both cubic meters and cubic feet
C.both kilos and pounds
D.barrels of 55 gallon capacity