boom angle
boom strength
load radius
cable strength
第1题：
The load chart of a ship crane enables the operator to combine the load radius with boom length to determine the ______．
A.Maximum counter weight required
B.Minimum horsepower required
C.Hoist rope strength
D.Allowable load
第2题：
What does “evel-luffing” accomplish during crane operations ________．
A.It prevents the load from swinging when the boom level is adjusted
B.Less power is needed when topping the boom with a load on the hook
C.It maintains the height of the load above the deck
D.All of the above
第3题：
The stevedores are going to load your ship in ________ days
A.few
B.a few
C.little
D.a little
第4题：
to work as overload characteristic
overspeed
over mechanical load only
over thermal load only
第5题：
Aboard a vessel, multiplying a load’s weight by the distance of the load’s center of gravity from the mid-ship section results in the load’s ______.
A.LCG
B.longitudinal moment
C.righting moment
D.inclining moment
第6题：
The Master or person in charge of a ship shall ensure the crane record book shows the ______．
A.Date and description of each failure
B.Average load in pounds for each usage
C.Total number of lifts for each usage
D.All of the above
第7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8题：
The document that certifies the correctness of the load line marks on a ship is called the ______.
A.Certificate of Inspection
B.Load line certificate
C.Certificate of Documentation
D.SOLAS Certificate
第9题：
The （）(浮吊) can float on water used to load and unload the cargo.
第10题：
winch speed
boom strength
load radius
cable strength