（）means a unit in which goods are totally enclosed by sufficient strong boundaries such as a freight container，a tank or a vehicle unit with fabric sides or tops.

You are on a containership carrying a tank container that had been filled with sodium hydroxide solution. The container is empty but has not been cleaned. Which，if any，placard is required?（）.

（）cargo means to check all cargo loaded into or discharged from a vessel.

Concerning the use of a stabilogauge，what of the following cannot be found?（）.

When loading containers into the cell guides in the hold of a container ship，which statement is TRUE?（）.

Which factor does NOT affect the required freeboard of a cargo vessel? （）

Because of the arrangement of the cell guides，the MOST important factor while loading containers is the（）.

In the case of the leading marks，the master may（）to show these in the bill of lading if the goods or their containers are not clearly marked in such a manner as should ordinarily remain legible until the end of the voyage.

Which will be a result of removing on-deck containers?（）.

All the following except（）are fittings for securing and lashing containers on board ships.