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When shoring a damaged bulkhead，effort should be taken to spread the pressure over the ______.
A.maximum possible area
B.minimum possible area
C.nearest watertight door
D.nearest longitudinal girder
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单选题Damaged bulkheads often take a permanent set which is independent of the panting or bulge caused by water pressure. To control this，you should（）.A
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单选题The objective of shoring the damaged area of a ship is to（）.A
force the warped，bulged，or deformed sections back into placeB
support and hold the area in the damaged positionC
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make a watertight seal at the damaged area
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单选题To prevent the spread of fire by convection you should （）.A
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单选题When shoring a damaged bulkhead，effort should be taken to spread the pressure over the （）.A
maximum possible areaB
minimum possible areaC
nearest watertight doorD
nearest longitudinal girder
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单选题The objective of shoring a damaged bulkhead is to（）.A
force the warped, bulged, or deformed sections back into placeB
support and hold the area in the damaged positionC
withstand subaequent additional damagedD
make a watertight seal at the damaged area
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单选题When fighting a fire with a portable dry chemical fire extinguisher，the stream should be directed（）.A
over the top of the flamesB
off a bulkhead into the fireC
in front of the fireD
at the base of the fire
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单选题When using carbon dioxide to fight a fire on a bulkhead，the CO2 should be applied（）.A
first to the bottom of the flaming area，sweeping from side to side，and following the flames upwardB
in a circular motion from the middle of the bulkhead outwardC
to the top of the flaming area，sweeping from side to side，and working toward the bottomD
in an up-and-down motion from one side of the bulkhead to the other
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