单项选择题
A.pigtail chain B.thrash chain C.crown chain D.wear chain
The holding power of an anchor at a given scope of cabl...
单项选择题The holding power of an anchor at a given scope of cable increases when the().
A.amount of chain lying along the bottom increases B.length of the catenary is reduced C.mooring line tension is increased D.amount of chain lying along the bottom decreases
The holding capabilities of an anchor are determined PR...
单项选择题The holding capabilities of an anchor are determined PRIMARILY by the().
A.design of the anchor B.weight of the anchor C.scope of the anchor chain D.size of the vessel
The best method of determining if a vessel is dragging ...
单项选择题The best method of determining if a vessel is dragging anchor is to note().
A.the amount of line paid out B.how much the vessel sheers while at anchor C.any change in the tautness of the anchor chain D.changes in bearings of fixed objects onshore