A.Jack down one leg at a time
B.Jack up first，then down
C.Undog doors to the engine room
D.Assemble all personnel on the main deck
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A.Ensure the bight is not fouled by taking up slack
B.Pay out the line smartly and keep it free for running
C.Secure the line by adding more turns
D.Surge the line so it maintains a strain without parting
A.Using a medium graphite grease as a lubricant
B.Operating a winch too slow
C.Using a sheave with an undersized throat
D.A sheave diameter of 24 times the wire's diameter
A.Detachable
B.Open
C.Pear shaped
D.Stud link
A.Single whip
B.Gun tackle
C.Luff tackle
D.Twofold purchase
A.A line led forward from the bow
B.A line led aft from the bow
C.A line led in the same direction as the keel
D.A line led at a right angle to the keel
最新試題
You have been towing astern and have just let go the tow.Your deckhands are pulling in and faking the towline by hand on the stern.The most dangerous action to take is to（）.
The minimum length of a boat painter for a lifeboat in ocean service is（）.
When hoisting a boat on gravity type davits using an electric motor driven winch，the davit arms should be brought up（）.
To warp a vessel means to（）.
Which mooring line prevents sideways motion of a vessel moored to a pier（）.
Solid waste generation，and electricity and water consumption are costly and have their own set of environmental（）.
The margin plate is the（）.
The Customer agrees to pay the full invoiced price，plus all other amounts payable to the（）Repairer under these terms and conditions，relating to or arising out of the Works for the Customer.
You must ensure that lifesaving equipment is（）.
When a line is spirally coiled about its end and lying flat on deck，it is said to be（）.