A.boom angle
B.boom strength
C.load radius
D.cable strength
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A.dock riser
B.ship's cargo tanks
C.shore tank discharge
D.All of the above
A.unchanged
B.increased
C.eliminated
D.decreased
A.increases as the cargo closes the head while hoisting
B.increases if the cargo runner is doubled up
C.decreases as the boom is topped to a greater angle
D.is determined by the thrust stresses on the boom
A.provide safe electrical power connection to barge equipment
B.keep the vessel from surging excessively
C.prevent an accidental discharge of static electricity
D.secure the cargo hose to a hatch when loading overall
A.running rigging leading aft from the masts
B.running rigging leading forward from the masts
C.standing rigging leading aft from the masts
D.standing rigging from the cross trees to the mast head
最新試題
Pedestal cranes have limit switches to restrict movement of which function（s）（）.
When discharging an oil cargo，the first consideration is to（）.
When discharging oil from an oil tanker the instantaneous rate（）60 liters per nautical mile.
When using slings，cargo handlers should take all the following precautions except（）.
Which of the following statements is FALSE concerning cranes being installed on the centerline of vessels（）.
What is/are the advantage（s）of cranes over conventional cargo booms（）.
The Master or person in charge of a ship shall ensure the crane record book shows the（）.
Which of the following statement（s）is/are TRUE regarding a twin pedestal crane set（）.
What is meant by the term“l(fā)uffing the boom”of a crane（）．
Which operation may cause the pressure in an inert tank to fall below the prescribed limits（）.