A.prevailing westerlies
B.horse latitudes
C.trade winds
D.subpolar low pressure belts
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A.Weather side
B.Leeward side
C.Upwind side
D.Crosswind side
A.When at anchor，the pilot vessel is only required to sound anchor signals
B.The identification signal must be sounded any time the pilot vessel is underway
C.The pilot vessel may only sound the identity signal when making way
D.All of the above
A.Greenwich celestial meridian
B.hour circle of the body
C.local celestial meridian
D.vertical circle of the body
A.Ballast Control Operator
B.Barge Supervisor
C.Master or Offshore Installation Manager
D.operators representative
A.Selected Worldwide Marine Weather Broadcasts
B.your local newspaper
C.the Notice to Mariners
D.the daily weather map
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Diesel powered industrial trucks on a ship that are provided with safeguards to the exhaust，fuel，and electrical systems are designated（）.
Compliance with the terms of the load line certificate on a ship is the responsibility of the（）.
Cyclones that have warm sectors usually move（）.
Clean air standards referred to as “Grade D” apply to compressed air for use in（）.
Compared to a low pressure system，generally the air in a high is（）.
Deck beams on a ship are generally spaced at equal intervals and run（）.
Channel 13 is primarily used for ship to ship communication. Channel 13 is also authorized for（）.
Coiling new rope against the lay，bringing the lower end up through the center of the coil，then coiling with the lay，in order to remove the kinks，is known as（）.
Concerning the identification signal for a pilot vessel，in fog，which statement is TRUE?（）
Corrosive liquids and acids should have which kind of label?（）