A.to use
B.to operate
C.maneuvering
D.using
您可能感興趣的試卷
你可能感興趣的試題
A.is the S.W.L. of the crane
B.are the S.W.L. of the crane
C.the S.W.L. of the crane is
D.the S.W.L.of the crane are
A.boom angle
B.boom strength
C.load radius
D.cable strength
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
最新試題
When using slings，cargo handlers should take all the following precautions except（）.
Which of the following statement（s）is/are FALSE regarding a twin pedestal crane set （）.
How should you signal the crane operator to lower the boom and raise the load（）.
Pedestal cranes have limit switches to restrict movement of which function（s）（）.
Which of the following statement（s）is/are TRUE regarding a twin pedestal crane set（）.
The net productivity per gang-hour can be improved through a decrease of（）.
Which statement is FALSE concerning a tagline as used with a 30-ton pedestal crane（）.
When discharging oil from an oil tanker the instantaneous rate（）60 liters per nautical mile.
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（）.