Which of the following is not a frontal term（）.

单项选择题Which general weather conditions should you expect to find in a low pressure system（）.

A.Fair weather
B.Precipitation and cloudiness
C.Scattered clouds at high elevations
D.Gradual clearing and cooler temperatures

单项选择题When steering on autopilot which of the following input conditions may NOT have an effect on the control of the steering gear（）.

A.Non-follow-up
B.Rudder adjustment
C.Weather adjustment
D.All the above may be activated

单项选择题When observing a rapid rise in barometric pressure，you may expect（）.

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

单项选择题When force of winds reaches 10-11 in Beaufort scale，we usually call such wind（）.

A.Gale
B.Storm
C.Hurricane
D.Typhoon

单项选择题When a high pressure system is centered north of your vessel in the Northern Hemisphere（）.

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