5 tons
5 metres
5 feet
5 years
第1题：
The safe working load for the assembled cargo gear and the minimum angle to the horizontal for which the gear is designed shall be marked on the ______．
A.deck
B.head of the boom
C.heel of the boom
D.mast or king post
第2题：
In relation to cargo gear, what does SWL mean ?______.
A.Safe working load
B.Ship’s working lift
C.Starboard wing lift
D.Stress, weight, load
第3题：
What ________ the safe working load of the derrick?
A.is
B.be
C.are
D.has
第4题：
The sailor on duty is （）the derrick now.
第5题：
英文备注“the derrick safe working load 3t”的中文意思是：（）
第6题：
When a cargo boom or crane is rated at varying capacities，there will be a table at the controls which relates safe working load to ______．
A.winch speed
B.boom strength
C.load radius
D.cable strength
第7题：
The safe working load of the derrick is 5 tons.（）
第8题：
Cargo booms must be weight tested to recertify the Safe Working Load（SWL）every ______．
A.Year
B.Two years
C.Four years
D.Five years
第9题：
What are two uRPF working modes？（）
第10题：
The safe working load of the derrick is （）.