A.reduce spud can bearing pressure
B.keep the unit level and reduce overloading
C.reduce stresses on the hull
D.minimize the potential for punch-through
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A.entered through a dredged cut
B.not accessible in easterly gales
C.available for vessels up to a maximum draft of 8 feet (2.4m)
D.not affected by the tide
A.reducing speed to reduce surging on the towline
B.lashing down or stowing all loose gear
C.dogging all hatches and watertight doors
D.streaming all of your towing hawser
A.weaker
B.equal
C.greater
D.indeterminable
A.towing bridle
B.main weather cover
C.external lifelines
D.righting strap
A.non-toxic gas
B.Oxygen
C.Hydrogen
D.Helium
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Freeboard is measured from the upper edge of the（）.
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Fusible-link fire dampers are operated by（）.
Great Salt Pond on Block Island is（）.
High pressure and low pressure alarms must be tested（）.