單項(xiàng)選擇題How are lifelines attached to a life float?（）
A.By serving
B.By splicing one end of the line around the apparatus
C.Securely attached around the outside in bights no longer than three feet
D.With an approved safety hook or shackle
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1.單項(xiàng)選擇題Faking a line means to（）.
A.arrange it on deck in long bights
B.coil it down on deck
C.put a whipping on it
D.stow it below
2.單項(xiàng)選擇題Canvas sails，when not in use，may be damaged if（）.
A.left in the sunlight
B.stowed wet
C.folded frequently
D.washed with soap and water
3.單項(xiàng)選擇題An ocean towing bridle should（）.
A.have equal legs of sufficient length
B.have a large angle between the legs
C.be formed on a bight of cable through a ring
D.never be made up of chain
4.單項(xiàng)選擇題A tow bridle is attached to the main tow hawser at the（）.
A.bight ring
B.tow hook
C.fishplate
D.swivel
5.單項(xiàng)選擇題A term used to describe the dip in a towline that acts as a shock absorber is（）.
A.catenary
B.step
C.shock dip
D.bight