A.moors
B.moor
C.is moored
D.mooring
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A.which
B.where
C.when
D.how
A.before
B.when
C.after
D.during
A.maximum counter weight required
B.minimum horsepower required
C.hoist rope strength
D.allowable load
A.horizontal position of the boom
B.vertical position of the boom
C.horizontal position of the load being lifted
D.vertical position of the load being lifted
A.length of the boom
B.angle of the boom
C.lifting capacity of the boom
D.direction of the boom
最新試題
When discharging an oil cargo，the first consideration is to（）.
Which statement is TRUE concerning the placard entitled Discharge of Oil Prohibited（）.
Which part provides for transverse control and positioning of a boom in a conventional yard and stay system（）.
Pedestal cranes have limit switches to restrict movement of which function（s）（）.
Which of the following statement（s）is/are FALSE regarding a twin pedestal crane set （）.
Which method should be used to warm up the pump turbines prior to discharge（）.
Which of the following statements is FALSE concerning cranes being installed on the centerline of vessels（）.
What is the purpose of the equalizing beam aboard a crane vessel（）.
Which part of a conventional cargo gear rig provides for vertical control and positioning of a boom（）.
Which operation may cause the pressure in an inert tank to fall below the prescribed limits（）.