A.two tucks with whole strands and one tuck with one-half strand
B.three tucks with whole strands and two tucks with 1/2 the wire cut from the tucking strand
C.three tucks with whole strands
D.two tucks with whole strands and three tucks with half strands
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A.to shoot
B.to fire
C.to let go
D.to send to sky
A.becket bend
B.blackwall hitch
C.figure-eight knot
D.square knot
A.composite
B.left-lay
C.improved
D.preformed
A.lifelines
B.righting strap
C.sea anchor
D.towing bridle
A.Depth of the water
B.Character of the holding ground
C.maintenance cost for the chain
D.Type of anchor cable
最新試題
Instead of whipping an end of a line，a temporary means of preventing the line from unraveling is to tie a（）.
In determining the scope of cable to be used when anchoring，what would NOT be considered?（）.
A single heavy wire made up for the topping lift is called a（）.
An on-load release system on a survival craft means the cable can be released（）.
A wooden plug fitted tightly in the vent of a damaged tank may prevent the tank from（）.
Cable tension for catenary calculations is taken at the（）.
The helicopter deck of a ship must be marked with the units identification，appropriate aiming circles，and a continuous line on the perimeter which is（）.
If an emergency pump control is used as the emergency shutdown on a tanker，it must（）.
A tackle is two blocked when the blocks are（）.
An effective braking system for windlasses on rigs in deep water is a(n)（）.