單項(xiàng)選擇題Bulkheads which form part of the tanks on a vessel are stiffened to withstand（）.

A.deck loads from above
B.dynamic forces while afloat
C.hydrostatic pressure
D.over-pressurization


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1.單項(xiàng)選擇題Between the side frames on a vessel，support for the deck beams is provided by（）.

A.stanchions
B.brackets
C.web frames
D.deck stringers

2.單項(xiàng)選擇題An upright vessel has negative GM. GM becomes positive at the angle of loll because the（）.

A.free surface effects are reduced due to pocketing
B.KG is reduced as the vessel seeks the angle of loll
C.effective beam is increased causing BM to increase
D.underwater volume of the hull is increased

3.單項(xiàng)選擇題An inland oil barge must have equipment available to remove an on-deck oil spill of at least（）.

A.one barrel
B.two barrels
C.five barrels
D.ten barrels

4.單項(xiàng)選擇題A shroud is（）.

A.any wire running fore-and-aft on a ship
B.any wire with a fiber core
C.a heavy wire extending from the trunk of the mast to the head of the boom
D.a heavy wire extending from the mast，atwartships to the deck，to support the mast

5.單項(xiàng)選擇題A pumproom is suspected of accumulating gases after a ventilation machinery breakdown. Where should the combustible gas indicator case be placed when testing the pumproom atmosphere for combustible gases?（）.

A.In the lower level of the pumproom
B.In the middle level of the pumproom
C.In the upper level of the pumproom
D.On the deck outside the pumproom