A、LPG is compatible with all cargos
B、LPG's high oxygen content makes it nonvolatile
C、Cargo tanks are inspected less frequently than on oil tankers
D、The cargo tanks are used for one type of cargo only
更多“Why is gas-freeing rarely required for LPG cargo tanks? （）”相关的问题
A、Washing the tank interior with sea water B、Application of degreasing solvents C、Removal of corrosion products and sludge D、Fresh air ventilation
A、ABS marine surveyor B、certified marine chemist C、port engineer D、Coast Guard marine inspector
A、A.prevents the flue gas from falling below 3% content of oxygen B、B.allows the inert gas piping to be used for gas freeing the tanks C、C.opens when there is excessive vacuum on the deck water seal D、D.enables outside air to mix with and cool hot flue gasses
A、Because carbon dioxide dilutes the oxygen concentration in the atmosphere and may cause asphyxiation B、Because carbon dioxide breaks down in a fire into carbon monoxide which may cause blood poisoning in the person breathing this gas C、Because carbon dioxide is a colorless and odorless gas that becomes highly toxic in the presence of high temperatures and will quickly incapacitate a person exposed to this gas D、This action is unnecessary as carbon dioxide is not poisonous nor toxic but is a relatively harmless gas
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