A.Non-follow-up
B.Rudder adjustment
C.Weather adjustment
D.All the above may be activated
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A.Clear weather with no wind，but the possibility of rain or snow within 24 hours
B.Deteriorating weather with rain or snow
C.Heavy rain or severe thundershowers
D.Clearing weather，possibly accompanied by high winds
A.Gale
B.Storm
C.Hurricane
D.Typhoon
A.You should experience hot，moist，clear weather
B.The wind direction is generally easterly
C.The winds should be from the southwest at your location
D.The winds should be brisk
A.Change direction in a clockwise manner in the Northern Hemisphere
B.Circulate about a low pressure center in a counterclockwise manner in the Northern Hemisphere
C.Vary in strength constantly and unpredictably
D.Circulate about a high pressure center in a clockwise manner in the Southern Hemisphere
A.It provides a legal reason to cancel a projected voyage
B.It allows the mariner to make long term weather forecasts
C.It is of little benefit since the weather changes frequently and rapidly
D.It gives the mariner time to prepare for weather changes
最新試題
If the center of low pressure is due west of you in the Northern Hemisphere，which wind direction should you expect（）.
Weather forecast messages are usually（）.
Widely spaced isobars on a weather map indicate（）.
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（）.
If your weather bulletin shows the center of a low pressure area to be 100 miles due east of your position，what winds can you expect in the Northern Hemisphere?（）.
In Beaufort Scale，the wind force 7 with speed of 28-33 knots is defined as（）.
Which of the following statements concerning frontal movements is TRUE（）.
The area of strong westerly winds occurring between 40°S and 60°S latitude is called the（）.
Weather information is available from（）.