A.discharge
B.recircle
C.load
D.take in
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A.out
B.beyond
C.from
D.off
A.butterfly valve
B.spectacle valve
C.check valve
D.globe valve
A.before the gripes are removed
B.before loading the passengers
C.after loading the passengers
D.after the boat is afloat
A.does not exceed
B.should exceed
C.should be up to
D.should be no more than
A.environmental loading
B.variable loading
C.fixed loading
D.basic loading
最新試題
Which part provides for transverse control and positioning of a boom in a conventional yard and stay system（）.
When viewed from above，the best position for the guy in relation to the boom is（）.
How should you signal the crane operator to move slowly（）.
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（）.
Which statement is TRUE concerning the placard entitled Discharge of Oil Prohibited（）.
What does “evel-luffing” accomplish during crane operations（）.
Pedestal cranes have limit switches to restrict movement of which function（s）（）.
Most pedestal crane power is provided by（）.