A.South-southwesterly
B.North-northwesterly
C.South-southeasterly
D.North-northeasterly
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A.strong breeze
B.near gale
C.gale
D.strong gale
A.wind Speed
B.Air Force
C.wind Velocity
D.Beaufort Force
A.check it with a barometer on another vessel
B.take readings from several barometers and average them
C.check it with the barometer at the ship chandlery
D.check it against radio or National Weather Service reports of the immediate vicinity
A.a certain area
B.all ocean areas
C.some areas
D.important areas
A.Upwind
B.Downwind
C.Crosswind
D.Downcurrent
最新試題
HIGH WAVES；DENSE STREAKS OF FOAM ALONG THE DIRECTION OF THE WIND；CRESTS OF WAVES BEGIN TO TOPPLE，TUMBLE AND ROLL OVER；SPRAY MAY AFFECT VISIBILITY.This condition is likely to be termed（）.
Gale warnings are usually issued when winds of（）8-9 are expected．
When force of winds reaches 10-11 in Beaufort scale，we usually call such wind（）.
When a high pressure system is centered north of your vessel in the Northern Hemisphere（）.
Which of the following is not a frontal term（）.
The Beaufort scale is used to estimate the（）.
West backing south-west gale 8 locally storm 10（）then rain or sleet mainly good.
The eye of a hurricane is surrounded by dense black cumulonimbus clouds which are called the（）.
While on watch，you notice that the air temperature is dropping and is approaching the dew point.Which type of weather should be forecasted（）.
Weather forecast messages are usually（）.