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單項(xiàng)選擇題

To prevent a wooden hull from leaking you caulk it（）.

A.after drydocking，while the hull is moist
B.after drydocking，and the hull has dried
C.afloat，where it is leaking
D.afloat，in all accessible areas

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單項(xiàng)選擇題

To predict the actual depth of water using the Tide Tables，the number obtained from the Tide Tables is（）.

A.the actual depth
B.added to or subtracted from the charted depth
C.multiplied by the charted depth
D.divided by the charted depth

單項(xiàng)選擇題

To develop maximum anchor holding power，the optimum angle between the anchor’s shank and the mooring lines is（）.

A.0 degrees
B.10 degrees
C.20 degrees
D.30 degrees

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