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A SEAMARK，I.E. A BUOY，INDICATING THE NORTH，EAST，SOUTH OR WEST FROM A FIXED POINT，E.G. A WRECK is ().
- A.Entrance buoy
- B.New buoy
- C.Port buoy
- D.Cardinal buoy
- A.Width of the tank
- B.Length of the tank
- C.Registered tonnage
- D.Specific gravity of the liquid in the tank
- A.Moving high weights lower
- B.Adding weight at the tipping center
- C.Moving a weight forward
- D.All of the above
- A.Trick wheel
- B.Rapson slide
- C.Follow-up gear
- D.Receiver unit
- A.Can be observed visually
- B.Can be observed by radar
- C.Can be located on the radar
- D.Can be heard
- A.Rainy weather for the next 48 hours
- B.High seas
- C.Improving weather conditions
- D.Deteriorating weather conditions
- A.Internal communications，including sound-powered telephones
- B.Navigational lights and search lights
- C.Vessel control alarms
- D.All of the above must be tested
- A.TTT
- B.SOS
- C.The spoken word URGENCY
- D.The spoken word PAN
- A.head on at slow speeds
- B.hove to
- C.running before the seas
- D.to rig a sea anchor
- A.engaged in piloting
- B.towing astern
- C.engaged in fishing
- D.in distress
