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
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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
What is NOT a requirement for the safe and effective use of a crude oil washing system ________．
A. Strip all tanks and remove the bottom residue
B. Use an inert gas system while washing tanks
C. Use portable washing machines to reach areas obscured by structural members in the tanks
Debottom the tank used as the source for the tank cleaning machines
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