A.Single whip
B.Gun tackle
C.Luff tackle
D.Twofold purchase
您可能感興趣的試卷
你可能感興趣的試題
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
A.on only the forward falls
B.on only the after falls
C.with a lead of about 45 degrees to the boat
D.from the falls to the main deck of the vessel
A.Base line
B.Molded line
C.Designer's waterline
D.Keel line
A.Personnel may work beneath suspended loads，as long as they are alert and wear hard hats
B.If a suspended load with no tag begins to spin，personnel should attempt to stop the spinning if the load is within reach
C.If tag lines are used to control a suspended load，they should be secured to the deck
D.Personnel not involved in the hoisting operation should be kept clear of the transfer area
A.selected
B.collected
C.detected
D.effected
最新試題
The usual method of arranging a line on deck so that it will run out easily without kinking or fouling is（）.
What is TRUE about hoisting operations（）.
You are handling a mooring line and are instructed to Check the line.What should you do（）.
What（）to him is whether the job of a deck officer allows him to pursue his studies.
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.
The main advantage and chief characteristic of a Steulchen boom is that it can be（）.
You are operating a lift boat.When beginning to jack down you should（）.
You must ensure that lifesaving equipment is（）.
Which tackle arrangement has the LEAST mechanical advantage（）.
Fueling activities（）waste liquids and vapor releases to air.