默认题库 - 海洋法基本知识

单选题

The average height of the surface of the sea for all stages of the tide over a 19 year period is called（）.

A. mean high water
B. mean low water
C. half-tide level
D. mean sea level

单选题

The error in the measurement of the altitude of a celestial body，caused by refraction，increases as the（）.

A. horizontal parallax decreases
B. observer's height above sea level increases
C. humidity of the atmosphere decreases
D. altitude of the body decrease

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单选题

What natural feature is responsible for the rather even climate found on the Florida peninsula throughout the year? （）

A. Strong masses of continental air
B. The Gulf Stream
C. The Bermuda high
D. The cool waters of the Sargasso sea

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单选题

A heavy steel device that is set on the sea floor and used as a drilling template in offshore drilling operations is called a（）.

A. temporary guide base
B. permanent guide base
C. guide frame
D. foundation template

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单选题

After a liferaft is launched，the operating cord（）.

A. serves as a sea painter
B. detaches automatically
C. is used to rig the boarding ladder
D. is cut immediately as it is of no further use

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单选题

Air temperature varies with（）.

A. the altitude above sea level
B. the season of the year
C. the latitude or distance from the equator
D. All of the above

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单选题

If you are sailing from the East Coast of the United States to the Caribbean Sea，which publication would contain information on weather，currents，and storms?（）

A. Sailing Charts of the Caribbean Sea
B. Pilot Charts of the North Atlantic
C. Light Lists，Atlantic and Gulf Coast
D. Tidal Current Table

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单选题

Mean low water is the average height of（）.

A. the surface of the sea
B. high waters and low waters
C. all low waters
D. the lower of the two daily low tide

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单选题

Most drill ships and barges have a walled opening below the derrick，open to the water’s surface and through which various drilling tools can pass down to the sea floor called a （）.

A. moon pool
B. spider deck opening
C. pontoon
D. keyway

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单选题

The 3-cm radar as compared to a 10-cm radar with similar specifications will（）.

A. give better range performance in rain，hail，etc
B. display small targets in a mass of dense sea clutter at a greater range
C. have less sea return in choppy rough seas
D. display a more maplike presentation for inshore navigatio

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