0n a vessel ,a C02 extinguisher is checked by（）.

A . in collision between B . in collision with C . collision ainst D . collision with

A . have more resistance to listing in case of damage B . have less tendency to have synchronous rolling C . be less likely to have cargo shift D . ride more comfortably

A . American Consul B . Classification Society C . Captain of the Port D . Officer in Charge，Marine Inspectio

A . increasing the righting moment B . decreasing the vessel's displacement C . increasing the reserve buoyancy D . shifting the CG（center of gravity）off center

A . not under command B . restricted in her ability to maneuver C . engaged in towing D . fishing

A . Danger of heavy ship sweat exists; constant and vigorous ventilation is required B . There is danger of heavy cargo sweat if outside air is introduced by ventilation C . There is little danger of ships sweat, slight possibility of cargo sweat; moderate ventilation is needed D . The po sibility of any sweat problem, either cargo or ship, is frame

A . under sail B . restricted in her ability to maneuver C . crossing a channel D . All of the above

A . The fishing vessel must keep clear of the vessel not under command B . If the vessel not under command is a power-driven vessel，she must keep clear of the fishing vessel C . They must exchange whistle signals D . Both vessels are required to take action to stay clear of each other

A . has no more than two compartments B . has two compartments in addition to the engine room C . will sink if any two compartments are flooded D . will float if any two adjacent compartments are flooded

A . engaged in piloting B . towing astern C . engaged in fishing D . in distre

A . Use the C0 system and evacuate the engine room B . Use the fire main system and evacuate the engine room C . Evacuate the engine room and use the C0 system D . Evacuate the engine room and use the fire main system

A . vertical position B . horizontal position C . boom stop angle D . minimum radius angle

A . The sea anchor deploys B . The floor inflates C . If upside down, the craft rights itself D . The painter detaches from the raft

A . put back in service if some CO remains B . hydrostatically tested C . retagged D . recharged

A . turning maneuver B . course setting C . position fixing D . regulating speed

A . including B . inclusive of C . except that D . other tha

A . Only the stern light of the vessel B . One sidelight and a masthead light of the vessel C . Only a sidelight of the vessel D . The masthead lights of the vessel

A . cooling B . smothering C . chemical action D . All of the above

A . Point the horn down B . Turn cylinder upside-down C . Break the rupture disc D . Pull pin, squeeze gri

A . reading the gage pressure B . weighing the extinguisher C . discharging a small amount of CO D . seeing if the seal has been broke

A . transverse moment B . vertical moment C . righting moment D . inclining moment

A . put back in service if some C0 remains B . hydrostatically tested C . retagged D . recharged

A . is pushed B . being pushed C . was pushed D . be pushed

A . The power-driven vessel must keep out of the way of the sailing vessel B . A special circumstance situation exists C . The sailing vessel must keep out of the way of the power- driven vessel D . The vessel which has the other vessel to the right must keep out of the way