A.add strength to the bilge well strainer
B.permit rapid flow of water to the bilge wells
C.prevent cargo sifting into the bilge wells
D.prevent oil，water，or other liquid from reaching the cargo
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A.to ventilate the hold
B.to separate the cargo
C.to replace shifting boards
D.to facilitate stowage
A.require loading operations to be shut down until the atmosphere clears
B.are toxic to human life
C.are subject to spontaneous combustion
D.may be explosive in some concentrations
A.Bagged cargo
B.Bulk grain
C.Bulk rice
D.Refrigerated goods
A.device for securing a chain topping lift
B.hook to prevent the anchor cable from slipping
C.device used to drag for a submerged cable or line
D.type of clam bucket used for discharging bulk cargo
A.act as a beam to support vertical deck loads
B.lessen the longitudinal stiffness of the vessel
C.act as a tie to keep the sides of the ship in place
D.act as a web to prevent plate wrinkling due to twisting action on the vessel
最新試題
Stable equilibrium for a vessel means that the metacenter is（）.
A venetian vent or rice ventilator is used in stowage of which cargo?（）.
Before loading bulk grain，bilge wells must be covered to（）.
What term indicates a curvature of the decks in a longitudinal direction?（）
The center of gravity of a freely swinging load suspended from a pedestal crane acts as if it were located at the（）.
TRANSVERSE MOVEMENT OF CARGO，ESPECIALLY BULK，CAUSED BY ROLLING OR A HEAVY LIST defines（）.
When a vessel is stationary and in a hogging condition，the main deck is under（）.
Strengthening damaged bulkheads by using wood or steel is called（）.
Transverse frames are more widely spaced on a ship that is designed with the（）.
On a vessel，the keel is the primary strength member of the lower hull form in which direction?（）.