Which statement is TRUE concerning cargo hose on tank barges ________.A.Cargo hose must be

Which statement is TRUE concerning protection of double bottom tanks against excessive pressure?

A.Each vent for the tank must be equal to the area of the tank filling line

B.The tanks must be protected by overflows

C.The total area of the vents or the overflow shall be at least equal to the area of the fill line

D.There must be twice as much vent area as the area of the fill line

Which statement about stowing spare hose is TRUE ________．

A.Fold the hose so that the male coupling is about 4 feet from the female coupling，then roll it up

B.Roll the hose starting at the female end

C.Roll the hose starting at the male end

D.Fold the hose into lengths about 6 feet long and then lash the folds together

Which statement(s) is/are TRUE concerning crane cargo operations?

A.Do not exceed rated load capacity of crane and container spreader or slings

B.During any cargo handling operation，the safety of personnel is paramount

C.Cargo handlers must be outfitted with adequate protection from personal injury

D.All the above

A fire hose with a nozzle attached must be connected to each hydrant except when exposed to heavy weather or when the ______．

A.Fire hose might be damaged by cargo operations

B.Vessel is in port

C.Fire-main system is not charged

D.Fire pumps are used for purposes other than supplying water to the fire main

Which statement is TRUE concerning deep well self-priming pumps ________．

A.When loading oil cargo，it is always loaded via the discharge line through to the pump until the tank is topped off

B.Stripping systems are generally eliminated for the purposes of cargo handling

C.In recent years deep well pumps have become increasingly unpopular in product tankers and medium size crude ships

D.There is no danger of damaging the pump from overheating

You are on a multiple product tanker and carrying methyl acrylate，diethanolamine，and triethylamine. Which statement is TRUE?

A.Methyl acrylate may be loaded in a tank adjacent to diethanolamine but not triethylamine

B.The heating coils to the cargo tank loaded with methyl acrylate must be blanked off

C.Valve components made of aluminum，copper，or zinc may not be in contact with the cargoes

D.Each crew member working on deck must have an emergency escape breathing apparatus

A bonding cable should be connected for cargo operations aboard a tank vessel as soon as the ______．

A.Cargo has been loaded or discharged

B.Cargo hose is connected

C.Cargo pumps are started

D.Vessel is ready to handle cargo

You are on a cargo vessel carrying toluol in bulk in portable tanks. Which is a requirement for pumping the toluol?

A.Hose connections to the tank must be made with a minimum of three bolts

B.There must be water pressure on the fire main

C.You must shut down if another vessel comes alongside

D.If transferring at anchor，you must display a red flag by day and a red light at night

You are on a tanker designed to carry molten sulfur．Which statement is TRUE ________．

A.There must be two portable toxic vapor detectors on board

B.The cargo tank ventilation system must maintain the H2S vapor concentration at 1.85% or more by volume

C.Cargo temperature may be taken by portable thermometers

D.The pressure in the heating coils in the tanks must be less than that of the cargo exerted on them

Which of the following statements is FALSE concerning the proper procedure in handling a fire hose ________．

A.A 1.5 inch hose should be deployed with a minimum of a nozzleman and hoseman

B.Back-up hosemen should be positioned wherever the hose makes a significant turn

C.The fire hose should be partially charged before deploying it from the fire station

D.The nozzleman should always hold the nozzle with one hand on top，to prevent kickback