A.With forearm vertical and forefinger pointing up，move hand in small horizontal circles
B.With arm extended downwards and forefinger pointing down，move hand in small horizontal circles
C.Extend arm with fingers closed and thumb pointing upward
D.Place both fists in front of body with the thumbs pointing upward
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A.exposure to inclement weather conditions
B.carelessness
C.the use of improper gear
D.moisture caused by condensation
A.Keep the loads as close to the rail or deck as possible
B.If cargo is likely to settle，make provisions to secure it after it has settled
C.Thoroughly secure and shore all cargo so that it cannot move
D.hen stowing cargo，avoid leaving empty paces
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
A.Cleanly/during
B.Clear/meanwhile
C.Clean/between
D.Clean/prior to
A.slipway
B.graving dock
C.ground warp
D.caisson dock
最新試題
When using slings，cargo handlers should take all the following precautions except（）.
Which statement comparing a shipboard crane to conventional gear is TRUE（）.
Which of the following statement（s）is/are FALSE regarding a twin pedestal crane set （）.
How should you signal the crane operator to move slowly（）.
When viewed from above，the best position for the guy in relation to the boom is（）.
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（）.
How should you signal the crane operator to lower the boom and raise the load（）.
Running an electric winch at slow speed over a long period of time causes（）.
What is the purpose of the equalizing beam aboard a crane vessel（）.