單項選擇題Lines drawn through points on the Earth having the same atmospheric pressure are known as （）.

A.Isothermal
B.Millibars
C.Isobars
D.Seismics


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1.單項選擇題Light Lists for coastal waters are（）.

A.published every year and require no corrections
B.published every second year and must be corrected
C.published every five years and require no correction
D.accurate thru NM number on title page and must be corrected

2.單項選擇題Important changes to charts and lights（including temporary ones），radio signals and sailing directions are listed in（）.

A.Weekly Admiralty Notices to Mariners
B.The Mariners Handbook
C.Ocean Passages for the World
D.Symbols and Abbreviations used on Admiralty Charts，Chart 5011

3.單項選擇題For details of these and other lights the larger scale charts and Admiralty Lists should be （）.

A.considered
B.consulted
C.concluded
D.commanded

4.單項選擇題Before personnel are lifted from a vessel in a personnel basket，the vessel should be（）.

A.Directly under the boom
B.Moving away from the boom
C.Stopped dead in the water
D.Tied to the boom

5.單項選擇題An orange flag showing a black circle and square is a（）.

A.Signal indicating a course change
B.Distress signal
C.Signal of asking to communicate with another vessel
D.Signal indicating danger