问题：
[单选] The procedure of strengthening damaged structures on a ship by using wood or steel is called（）.
bracing。battening。blocking。shoring。
问题：
[单选] The purpose of sheer in ship construction is to（）.
allow the ship to ride waves with drier decks。eliminate the need for butt straps。eliminate the need for margin plates。give greater strength at the deck edge。
问题：
[单选] The strength of a deck will be increased by adding（）.
camber。deck beam brackets。hatch beams。sheer。
问题：
[单选] Transverse stability calculations require the use of（）.
hog or sag calculations or tables。hydrostatic curves。general arrangement plans。cross-sectional views of the vessel。
问题：
[单选] Vertical partitions which provide strength and compartmentalization on a ship are called（）.
decks。bulkheads。joiner work。wall。
问题：
[单选] Vertical structural members attached to the floors that add strength to the floors are called（）.
boss plates。buckler plates。stiffeners。breast hook。
问题：
[单选] What does the proof test load of an anchor chain demonstrate?（）
Breaking strength of the chain。Strength of the chain to a specified limit。Adequate holding power for new bottom conditions。Safe working load of the chai。
