A.decrease in mooring line length
B.increase in the opposite amperage
C.increase in the opposite line tension
D.decrease in mooring line tension and amperage
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A.deck lights forward and aft
B.a white light over two red lights
C.a red light，white light，and blue light in a vertical line
D.a distinctive signal promulgated by the CSS
A.the search has found nothing
B.the derelict has been found
C.the derelict has been located
D.the derelict has been sighted
A.red star shell
B.searchlight
C.burning barrel
D.orange smoke signal
A.headway
B.sternway
C.no way on，with engines stopped
D.no way on，with engines full ahead
A.very soft mud
B.rocky
C.a mixture of mud and clay
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The tension on an anchor cable increases so that the angle of the catenary to the seabed at the anchor reaches 10°. How will this affect the anchor in sandy soil?（）
One of the signals，other than a distress signal，that can be used by a vessel to attract attention is a(n)（）.
The process of waiting a period of time before pretensioning an anchor is known as（）.
In each inflatable rescue boat，what piece of equipment is provided to make quick，emergency，temporary repairs to a large hole in a raft?（）.
The self-contained breathing device should not be used in which situation?（）
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