time
space
length
visibility
第1题：
The boom stops on a pedestal crane prevent the boom from ______.
A.being raised too high
B.swinging at sea
C.overloading when not in use
D.being lowered too low
第2题：
Most pedestal crane power is provided by ______．
A.Electro-hydraulic units
B.Steam units
C.Independent internal combustion power units
D.All of the above
第3题：
A、Chain stores
B、Discounters
C、Corner shops
D、Groceries
第4题：
Which statement is FALSE concerning a tagline as used with a 30-ton pedestal crane ________．
A.Taglines are wire rope purchases that raise and lower the jib
B.Taglines are wire ropes for horizontal positioning of the rider block
C.Taglines can be fastened to corners of vehicles or containers
D.The crane might not have taglines installed in its rigging system
第5题：
Which of the following statement（s）is/are TRUE regarding a twin pedestal crane set ________．
A.The cranes may be operated independently
B.The cranes may be interconnected for twin operation
C.When twinned，the crane rotation on the foundation assembly is unlimited
D.All of the above
第6题：
For any given pedestal crane，when the boom is lengthened，the lifting capacity is ______．
A.unchanged
B.increased
C.eliminated
D.decreased
第7题：
Which of the following statement（s）is/are FALSE regarding a twin pedestal crane set ________．
A.The cranes may be operated independently
B.The cranes may be interconnected for twin operation
C.The cranes are powered by independent internal combustion power units
D.All of the above
第8题：
Which statement(s) is/are TRUE concerning crane cargo operations?
A.Do not exceed rated load capacity of crane and container spreader or slings
B.During any cargo handling operation，the safety of personnel is paramount
C.Cargo handlers must be outfitted with adequate protection from personal injury
D.All the above
第9题：
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
第10题：
Which wire rope purchases may be used with a 30-ton pedestal crane ________．
A.Hoist
B.Luff
C.Rider block
D.All of the above