A.boom
B.lift
C.raise
D.tackle
您可能感興趣的試卷
你可能感興趣的試題
A.riding pawl
B.buckler
C.devil's claw
D.locking ring
A.short splice
B.long splice
C.back splice
D.spindle splice
A.boat fall
B.fairlead
C.riding pawl
D.topping lift
A.block used only with manila rope
B.chock roller
C.hinged block
D.strong block used for short，sharp pulls
A.batten
B.bench hook
C.awl
D.fid
最新試題
Limit switches on gravity davits should be tested by（）.
The square knot is used for（）.
If an attempt is made to hoist a load that exceeds the capacity of an electric winch，an overload safety device causes a circuit breaker to cut off the current to the winch motor（）.
The standing part of a tackle is（）.
The strongest method of forming an eye in wire rope is using（）.
After deploying the anchor，a permanent chain chaser is（）.
Manila lines in which the strands are right-hand laid（）.
If kinking results while wire rope is being coiled clockwise，you should（）.
A whipping is（）.
The rolling hitch could be used to（）.