單項(xiàng)選擇題

A position obtained by applying only your vessel’s coures and speed to a known position is a（）.

A.dead-reckoning position
B.fix B.estimated position
C.probable position
D.running fix

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A right-handed propeller will cause the survival craft to（）.

A.walk the stern to starboard in reverse
B.walk the stern to port in reverse
C.run faster than a lefe-handed propeller
D.right itself if capsized

單項(xiàng)選擇題

A sea anchor is（）.

A.a heavy anchor with an extra long line used to anchor in deep water
B.a cone shaped bag used to slow down the wind drift effect
C.a padeye to which the sea painter is made fast
D.made of wood if it is an approved type