After a cold front passes,the barometric pressure ______．

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• 1Which of the following is a characteristic of a Ro-Ro vessel、

  A.Passenger tours available upon docking

  B.Long port stays necessary to secure vehicles

  C.Short in port turnaround times

  D.Heavy vehicles only require lightweight securing equipment

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• 2When force of winds reaches 10-11 in Beaufort scale，we usually call such wind ______．

  A.Gale

  B.Storm

  C.Hurricane

  D.Typhoon

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• 3When completed their duty, pilots want the master of the vessel to fill in ______．

  A.their yellow books

  B.their pilotage forms

  C.their identification cards

  D.their pilotage licenses

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• 4What kind of conditions would you observe as the eye of a storm passes over your ship's position、

  A.Huge waves approaching from all directions,clearing skies,light winds,and an extremely low barometer

  B.Flat calm seas,heavy rain,light winds,and an extremely low barometer

  C.Flat calm seas,heavy rain,light winds,and high pressure

  D.Huge waves approaching from all directions,clearing skies,light winds,and high pressure

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• 5The Routing System which aimed at reducing the risk of casualties is called as ______．

  A.Traffic Separation Schemes

  B.Recommended tracks

  C.Precautionary areas

  D.Inshore traffic zones

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• 6On a vessel with a single propeller,transverse force has the most effect on the vessel when the engine is put ______．

  A.full ahead

  B.full astern

  C.half ahead

  D.slow astern

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• 7A Doppler log in the bottom return mode indicates the ______．

  A.velocity of the current

  B.bottom characteristics

  C.depth of the water

  D.speed over the ground

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• 8On a ship，a door that is required to be marked KEEP CLOSED is designed to ______．

  A.prevent the passage of flammable gases

  B.prevent the passage of poisonous vapors

  C.delay the spread of heat and flames

  D.maintain watertight integrity

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• 9When navigating in thick fog with the radar on, you should ______．

  A.station the look-out in the wheelhouse to keep a continuous watch on the radar

  B.secure the sounding of fog signals until a vessel closes within five miles

  C.station a look-out as low down and far forward as possible

  D.keep the radar on the shortest available range for early detection of approaching vessels

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• 10Your radar is set on a true motion display．Which of the following will NOT appear to moveacross the PPI scope、

  A.Echoes from a buoy

  B.Own ship's marker

  C.Echo from a ship on the same course at the same speed

  D.Echo from a ship on a reciprocal course at the same speed

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