A.screw pump
B.centrifugal pump
C.eductor
D.gear pump
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A.alternate expansion and contraction as water in a liquid state becomes a vapor
B.absorption of smoke and gases as water is converted from a liquid to a vapor
C.rapid contraction as water is converted from a liquid to a vapor
D.rapid expansion as water absorbs heat and changes to steam
A.detachable link
B.stud link
C.Kenter link
D.connection link
A.flame stopper
B.flame screen
C.flame filter
D.flame restrictor
A.enlarge bit
B.casing bit
C.hole opener
D.casing opener
A.velocity of the current
B.bottom characteristics
C.depth of the water
D.speed over the ground
最新試題
The force resulting from the earth’s rotation that causes winds to deflect to the right in the Northern Hemisphere and to the left in the Southern Hemisphere is called（）.
The loading of the ship must be done in accordance with（）.
The mean draft of a ship is the draft（）.
Before any loading takes place any signs of the previous cargo should do（）.
（）is the act of allocating space to containers on board of a container ship in the order of the discharge ports.
It is dangerous for vessels without the operational radar（）the estuary.
Manoeuvring information can not be obtained from（）.
When the wave period and the apparent rolling period are the same（）.
Your vessel is docking, but not yet alongside. Which line will be the most useful when maneuvering the vessel alongside the pier?（）.
（）is where the crew eat their meals.