A.Right-hand laid
B.Cable-laid
C.Sennet-laid
D.Water-laid
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A.sufficient oxygen in a compartment to support life
B.combustible gases present
C.hydrogen gas present
D.All of the above
A.only when the load is taken off the cable
B.only when there is a load on the cable
C.only when activated by the controls at the lowering station
D.at any time
A.larger chain stopper
B.disc backstopping brake
C.hydraulic clutch
D.electrical regenerative braking system
A.filling completely
B.developing free surface
C.developing free surface moment
D.collapsing
A.equally sharing the load
B.jammed together
C.as far apart as possible
D.rove to the highest mechanical advantage
最新試題
In determining the scope of cable to be used when anchoring，what would NOT be considered?（）.
Cable tension for catenary calculations is taken at the（）.
A spring line leads（）.
By regulation，life preservers aboard an uninspected towing vessel must be（）.
If the ship is alongside the wharf，what kind of（）is used?
The davit aboard a ship is used to（）.
A small light tackle with blocks of steel or wood that is used for miscellaneous small jobs is called a（）.
A stay is（）.
A tackle is two blocked when the blocks are（）.
As you hold a piece of manila line vertically in front of you，the strands run from the lower left to the upper right. Which type of line is this?（）