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
What is meant by the term“l(fā)uffing the boom”of a crane（）．
What is the purpose of the equalizing beam aboard a crane vessel（）.
Which statement comparing a shipboard crane to conventional gear is TRUE（）.
Which operation may cause the pressure in an inert tank to fall below the prescribed limits（）.
Damage by（）shall not be considered as handling damage.
Which part provides for transverse control and positioning of a boom in a conventional yard and stay system（）.
Most pedestal crane power is provided by（）.
Which statement is FALSE concerning a tagline as used with a 30-ton pedestal crane（）.
Pedestal cranes have limit switches to restrict movement of which function（s）（）.
Which of the following statements is FALSE concerning cranes being installed on the centerline of vessels（）.