Every new crude oil tanker of 20000 tons deadweight and above shall be fitted with a cargo tank cleaning system using（）.

Individual wires，used in systems greater than 50 volts,（）.

Before you start an engine in a compartment，it’s MOST important to（）.

Increasing the number of slack liquid tanks has the effect of raising the（）.

Air compressors are NOT permitted in which space(s) on a tank barge carrying grade A cargo?（）

If you are bunkering and you close off one tank in the line of tanks being filled，the rate of flow to other open tanks on the same line will（）.

Each fireman’s outfit and its spare equipment on a tanker must be stowed in a(n)（）.

Protective clothing must be worn while sampling hazardous cargo on a tanker，and as a minimum includes（）.

Each fire pump on a tanker must have a pressure gauge located at（）.

Joiner bulkheads on a vessel provide（）.