單項(xiàng)選擇題In bad weather，what length of chain should be used with a single anchor? （）

A.3 times the depth of water
B.6 times the depth of water
C.10 times the depth of water
D.15 times the depth of water


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1.單項(xiàng)選擇題In a storm，the leeward lines of a ship’s mooring system will（）.

A.pull the unit in the same direction that the weather is pushing it
B.pull the unit in the opposite direction that the weather is pushing it
C.tend to keep the unit on its original location over the well head
D.affect the unit's draft and inclination as maximum mooring tensions are reached

2.單項(xiàng)選擇題If you are caught in the left semicircle of a tropical storm，in the Southern Hemisphere，you should bring the wind（）.

A.on the starboard quarter，hold course and make as much way as possible
B.2 points on the port quarter，and make as much way as possible
C.on the port bow，and make as much way as possible
D.dead ahead and heave to