Valves on steam-smothering lines to cargo tanks shall be set with ______．
A. The master control valve shut and valves to individual cargo tanks shut
B. The master control valve open and valves to individual cargo tanks shut
C. The master control valve shut and valves to individual cargo tanks open
D. All valves open
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What is NOT a requirement of cargo piping installed in tank vessels carrying grade D or E
A. The cargo piping system shall be fixed
B. Flanged joints shall be used for pipe sizes exceeding 2 inches in diameter
C. Piping through bunker spaces may be run through a pipe tunnel
D. Connections at bulkheads must be made so that the plating does not form part of a flanged joint
What is a wet cargo ________．
A liquid cargo carried in the deep tanks
B. A canned or bottled liquid such as beer
C. A cargo that contains hygroscopic moisture
D. A cargo particularly susceptible to damage by moisture
What is NOT a grade E product ________．
A. Dioctyl-phthalate
B. Gasoline
C. Formic acid
D. Creosote coal tar
What is NOT a function of the scrubber of an inert gas system ________．
A. Cool the inert gas
B. Remove particulate matter like soot
C. Maintain pressure in the tanks
D. Remove chemical impurities
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