我
- A.flashes at regular intervals at a frequency of 120 flashes or more per minute
- B.is yellow in color
- C.is visible over an arc of the horizon of not less than 180° nor more than 225°
- D.All of the above
- A.Unions
- B.Retractable flanges
- C.Union bulkhead fittings
- D.Bends or loops in the line
- A.Survey vessel
- B.Vessel not under command
- C.Vessel aground
- D.Pilot vessel with port side to you
- A.empty
- B.fully ballasted
- C.partially ballasted
- D.sealed
- A.underway but not making way
- B.making way，not under command
- C.not under command，not making way
- D.trolling underway
- A.Syphon barometer
- B.Cistern barometer
- C.Aneroid barometer
- D.Fortin barometer
- A.the funnel
- B.the messroom
- C.the galley
- D.the satellite antenna
- A.inflate the life raft on deck
- B.roll the life raft over the side
- C.go to another life raft station
- D.get a saw and cut the life raft free
- A.is flowing towards the land
- B.is moving towards the ocean
- C.level is not changing
- D.level is rising because of heavy rains
- A.contaminating food with extinguishing agent
- B.spreading through the engineering space
- C.loss of stability
- D.a grease fire in the ventilation system
