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
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A.length of the boom
B.angle of the boom
C.lifting capacity of the boom
D.direction of the boom
A.to use
B.to operate
C.maneuvering
D.using
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
最新試題
Official draft measurements should be（）by authorized persons，agreed by both parties involved.
Which statement comparing a shipboard crane to conventional gear is TRUE（）.
Which method should be used to warm up the pump turbines prior to discharge（）.
What does “evel-luffing” accomplish during crane operations（）.
The item（）is not the advantage of the hydraulic winch．
Which operation may cause the pressure in an inert tank to fall below the prescribed limits（）.
Sudden starts or stops of the boom is likely to cause all of the following except（）.
Which statement is FALSE concerning a tagline as used with a 30-ton pedestal crane（）.
Running an electric winch at slow speed over a long period of time causes（）.
When discharging oil from an oil tanker the instantaneous rate（）60 liters per nautical mile.