单项选择题
Safe speed is defined as that speed where（）.
A.you can stop within your visibility range
B.the vessel is not subject to vibrations
C.you are traveling slower than surrounding vessels
D.you can take proper and effective action to avoid collision
相关考题
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单项选择题
RYC8/TKS PLSPROCEED PEAKIS MEET/PLT SHIFT W/ANCH FOR/QTINE THEN/TO E/ANCH FOR/SUPPLY. This telex indicates that（）.
A.the vessel will anchor at eastern anchorage and take supply at the western anchorage
B.the vessel will anchor at western anchorage and take supply at the eastern anchorage
C.the vessel will anchor at eastern anchorage and take supply there
D.the vessel will anchor at western anchorage and take supply there -
单项选择题
Risk of collision exists when an approaching vessel has a(n)（）.
A.generally steady bearing and decreasing range
B.generally steady range and increasing bearing
C.increasing range and bearing
D.decreasing bearing only -
单项选择题
On a gnomonic chart，a great circle track between Los Angeles and Brisbane will appear as a （）.
A.loxodromic curve
B.curved line concave to the equator
C.straight line
D.spiral approaching the poles as a limit
