A.get the bow up
B.discharge from the wings first
C.discharge from the centerline tanks first
D.discharge from amidships first
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A.Cranes are able to pick up and drop loads over a greater spotting area
B.Increased safety because the deck is clear of running and standing rigging
C.Simplicity of operation of the crane by its operator
D.All of the above
A.It allows for rotation of the hook in the single mode
B.It is required to“twin-up”30-ton pedestal cranes
C.It is used to pick up light loads
D.It is used to rigidly connect two cranes
A.Stopping the boom
B.Topping or lowering the boom
C.Moving the boom left or right
D.All of the above
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
A.started
B.finished
C.completed
D.reported
最新試題
When discharging oil from an oil tanker the instantaneous rate（）60 liters per nautical mile.
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（）.
Most pedestal crane power is provided by（）.
The net productivity per gang-hour can be improved through a decrease of（）.
Which of the following statement（s）is/are TRUE regarding a twin pedestal crane set（）.
When discharging an oil cargo，the first consideration is to（）.
When instructing a crew member concerning the right way to lift a weight，you would instruct him to（）.
When viewed from above，the best position for the guy in relation to the boom is（）.
Which statement is FALSE concerning a tagline as used with a 30-ton pedestal crane（）.