A cargo tank that is initially gas freed,can be inerted by introducing inert gas by a process known as().
A、dilution
B、displacement
C、precipitation
D、Either A or B
A、dilution
B、displacement
C、precipitation
D、Either A or B
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
A、A.calculating the ullage in the cargo tanks B、B.loading ballast by gravity C、C.the loading of new cargo into the slop tank as a procedure to minimize pollution D、D.calculating the ratio of cargo expansion in a cargo tank
A、eliminating sparks and fire in the vicinity of cargo tanks B、removing all hydrocarbon gases from the cargo tanks C、blanketing cargo tanks with inert foam D、reducing the oxygen concentration below levels necessary for combustion
A、Washing water should be recirculated if possible because it has the same electric potential as the cargo tank being cleaned B、The hoses to portable cleaning machines should be disconnected before the machines are removed from the tank C、The principal hazard with steaming cargo tanks is raising the ambient temperature above the flame point of the cargo residue D、Steam cleaning and water washing are both capable of generating electrostatic charges within a tank
A、Washing water should be recirculated if possible because it has the same electric potential as the cargo tank being cleaned B、The hoses to portable cleaning machines should be disconnected before the machines are removed from the tank C、The principal hazard with steaming cargo tanks is raising the ambient temperature above the flame point of the cargo residue D、Steam cleaning and water washing are both capable of generating electrostatic charges within a tank
A、A.eliminating sparks and fire in the vicinity of cargo tanks B、B.removing all hydrocarbon gases from the cargo tanks C、C.blanketing cargo tanks with inert foam D、D.reducing the oxygen concentration below levels necessary for combustion