An oil tanker operating with dedicated clean ballast tanks shall be equipped with（），approved by the Administration on the basis of specification recommended by the Organization，to enable supervision of the oil content in ballast water being discharged.

According to regulations，access to a cargo pumproom in a tanker carrying grades C or D liquid cargo shall be（）.

The safe working load for the assembled cargo gear and the minimum angle to the horizontal for which the gear is designed shall be marked on the（）.

When fruit is carried as refrigerated cargo，the most frequent cause of its being infected at the discharge port is（）.

The greatest strain，when lifting a load with the jumbo purchase，is on（）.

In securing deck loads for an ocean tow，drill pipe should be（）.

The pneumatic containers which store bulk dry mud additives and cement on a ship are called（）.

By regulation，cargo tanks must be inert before and during what operation?（）.

Air gap is the vertical distance between the bottom of the hull and the（）.

If the cargo gear on your vessel is equipped with a regular guy and a preventer guy，you should（）.