默认题库 - 海上天气现象

单选题

Hurricanes may move in any direction．However，it is rare and generally of short duration when a hurricane in the Northern Hemisphere moves toward the（）.

A. West or northwest
B. Northeast
C. Southeast
D. North

单选题

In the Northern Hemisphere，the right half of the storm is known as the dangerous semicircle because（）.

A. the wind speed is greater here since the wind is traveling in the same general direction as the storm's track
B. the direction of the wind and seas might carry a vessel into the path of the storm
C. the seas are higher because of greater wind speed
D. All of the above

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单选题

Which condition suggests that your present position lies in the navigable semicircle of a tropical storm（）.

A backing wind
B. A veering wind
C. Sustained gale force winds
D. A strong wind that maintains a constant speed and directio

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多选题

萨缪尔森从市场失灵的概念出发，把政府经济职能归纳为（）。

A. 确立法律框架
B. 改善经济效率
C. 促进收入公平
D. 支持宏观经济稳定
E. 暴力统治工具

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单选题

Fetch is the（）.

A. Distance a wave travels between formation and decay
B. Stretch of water over which a wave-forming wind blows
C. Time in seconds required for two crests to pass a given point
D. Measurement of a wave's steepne

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单选题

A（）is created by a pressure gradient or slope in the water level.

A. gradient current
B. density current
C. swift current
D. torrent current

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单选题

（）is the most widespread type likely to be encountered at sea and is caused by relatively warm air being cooled by flowing over a cooler sea surface.

A. FRONTAL FOG
B. MIXING FOG
C. ADVECTION FOG
D. RADIATION FOG

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单选题

If you are caught in the left semicircle of a tropical storm，in the Southern Hemisphere，you should bring the wind（）.

A. On the starboard quarter，hold course and make as much way as possible
B. 2 points on the port quarter，and make as much way as possible
C. On the port bow，and make as much way as possible
Dead ahead and heave to

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单选题

Snow has obliterated surface features and the sky is covered with uniform，altostratus clouds. There are no shadows and the horizon has disappeared. What is this condition called? （）

A. Ice blink
B. Whiteout
C. Water sky
D. Aurora reflectio

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单选题

On a working copy of a weather map，a cold front is represented by what color line? （）

A. Red
Blue
C. Alternating red and blue
D. Purple

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