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
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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
A.wooden planks
B.rush mats
C.steel bars
D.wooden planks and rush mats
A.provide the proper trim
B.prevent negative stability from developing
C.prevent excessive longitudinal stresses
D.control list
最新試題
In vessel construction，beam brackets are triangular plates that join the deck beam to a（）.
In a longitudinally-framed ship，the longitudinal frames are held in place and supported by athwartship members called（）.
In Hatch No.3 the cargo（）bulk is peaked．
What is NOT a problem when carrying coal? （）
What would have the greatest affect on a vessel’s longitudinal strength? （）
On a bulk chemical carrier，water should NOT be used as an extinguishing agent to fight a fire if the water may come into contact with the chemical called（）.
A venetian vent or rice ventilator is used in stowage of which cargo?（）.
The center of gravity of a freely swinging load suspended from a pedestal crane acts as if it were located at the（）.
In any case the draught of the vessel at the（）shall not be less than that which is necessary to obtain full immersion of the propeller.
The correction to KG for longitudinal free surface effects for a vessel can be found by dividing the vessel’s displacement into the（）.