A.Cut in another IG fan to increase gas flow
B.Open the pressure control valve until the pressure increases
C.Open the tank isolation valve to the fully open position
D.Reduce the pumping rate

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.Isoprene may be carried in a cargo tank adjacent to either of the other two cargoes
B.Methyl methacrylate may not be carried in a tank adjacent to a pump room
C.Methyl methacrylate must usually be heated to maintain its stability
D.Portable thermometers are not permitted to be used to take the cargo temperature of triethylamine

A.Each of the cargoes must be segregated from the other by at least two barriers
B.The minimum protective clothing required for taking samples of phosphoric acid is goggles or a face shield
C.Aluminum，copper，and zinc are prohibited in all valve parts in contact with these cargoes
D.The required warning sign must have the legend "cancer hazard" added to it

A.Keep well clear of the vessel because she is on fire and has dangerous cargo on board or she is leaking dangerous cargo
B.Attempt to call the vessel on VHF radiotelephone because she is requesting to communicate
C.Approach the vessel with caution because she is dragging her anchor
D.Proceed on present course and speed since the vessel is requesting a tug

A.increases as the angle to the horizontal increases
B.increases as the angle to the horizontal decreases
C.is greatest at an angle of 45° and decreases as the boom is raised or lowered
D.is least at an angle of 45° and increases as the boom is raised or lowered

A.increases as the boom's angle to the horizontal increases
B.is at a maximum when the boom is at a 45° angle to the horizontal
C.increases as the boom's angle to the horizontal decreases
D.decreases as the boom's angle to the horizontal decreases

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.The transverse system is more resistant to hog and sag stresses
B.The numerous longitudinal frames cause excessive broken stowage
C.The transverse system provides better support to the varying cargo densities on a break bulk vessel
D.The deep web frames interfere with the stowage of break bulk cargo

A.Notify the engineroom of the need for propulsion
B.Shut down any cargo transfer that's in progress
C.Let go the port anchor and veer to a short scope of chain
D.Obtain assistance from the terminal to put new stern lines out