單項(xiàng)選擇題Which part of a conventional cargo gear rig provides for vertical control and positioning of a boom（）.
A.Cargo whip
B.Gooseneck fitting
C.Spider band
D.Topping lift
您可能感興趣的試卷
你可能感興趣的試題
1.單項(xiàng)選擇題Which operation may cause the pressure in an inert tank to fall below the prescribed limits（）.
A.Loading
B.Discharging
C.Crude oil washing
D.Steaming tanks
2.單項(xiàng)選擇題Which of the following statements is FALSE concerning cranes being installed on the centerline of vessels（）.
A.A centerline crane can never be operated in tandem
B.One crane is able to work one end of two adjacent hatches
C.These cranes are more economical and weigh less than outboard-mounted cranes
D.One crane is able to work both sides of the ship
最新試題
How should you signal the crane operator to lower the boom and raise the load（）.
題型：單項(xiàng)選擇題
On no account（）to be exceeded.
題型：單項(xiàng)選擇題
Which statement comparing a shipboard crane to conventional gear is TRUE（）.
題型：單項(xiàng)選擇題
What is meant by the term“l(fā)uffing the boom”of a crane（）．
題型：單項(xiàng)選擇題
How should you signal the crane operator to hoist（）.
題型：單項(xiàng)選擇題