A.sufficient oxygen in a compartment to support life
B.combustible gases present
C.hydrogen gas present
D.All of the above
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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
A.generally shorter than the others and is used to steer with
B.is longer than the others and is used as the stroke oar
C.is raised in the bow of the boat for the steersman to steer by
D.longer than the others used for steering
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It is permissible to place an eye splice in wire rope used as cargo gear providing the splice is made using（）.
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?（）
The equipment required to remove an on-deck oil spill on a barge transfering oil must either be arried on board or（）.
Cable tension for catenary calculations is taken at the（）.
If an emergency pump control is used as the emergency shutdown on a tanker，it must（）.
Each commercial fishing vessel must have at least one immersion suit，exposure suit，or life preserver for each（）.
A small light tackle with blocks of steel or wood that is used for miscellaneous small jobs is called a（）.
Is it safe（）a rocket?
Kapok life jackets should NOT be（）.
A single heavy wire made up for the topping lift is called a（）.