A.This reading is at the same elevation as the 6.2 ft. mark on the gage at Head of Passes
B.A vessel drawing 8 ft would be able to pass over the sill at Old River Lock
C.This reading is 6.4 feet below the Low Water Reference Plane
D.A vessel drawing 7 ft. would be able to pass through the locks at Lower Old River
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A.Green square
B.Red and green banded square
C.Green triangle
D.Green diamond
A.0°
B.10°
C.22.5°
D.None of the above
A.Abandon the towing vessel
B.Radio for emergency assistance
C.Slip the towline and allow it to run off the drum
D.Secure all watertight openings on the towing vessel
A.bank cushion
B.bank suction
C.combined effect
D.bend effect
A.in restricted visibility
B.in congested waters
C.during darkness
D.at all times
最新試題
A vessel shall not（）.
When steering a tow downstream around the shape of a sand bar，and staying on the proper side of the buoys，an operator should be cautious of（）.
You are making tow.A loaded，open-hopper barge with independent tanks has placards，with alternating red and white quadrants，located at each side and end.You inspect the barge and find slight traces of water in the wing voids due to condensation.What（）.
When towing in an open seaway，it is important to use a towing line（）.
In regions where ice conditions prevail in the winter，（）.
When underway and proceeding ahead，as the speed increases，the pivot point tends to（）.
You are approaching a vertical lift bridge.You know the span is fully open when（）.
You are drifting in a locale where there is no current．As a rule，your vessel will lie（）.
Which statement is TRUE in an overtaking situation（）.
（）is not a type of IALA maritime buoyage system.