A.increases
B.remains the same
C.decreases
D.is unimportant and may be neglected
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A.By backing down the track and cutting out ice on either bow
B.By approaching from the stern and crossing ahead at an angle of 20°to 30°to the beset ship's course
C.By overtaking the beset ship，running ahead and then backing down the track to the beset vessel
D.By approaching the vessel from astern and towing the beset vessel stern first
A.you can stop within your visibility range
B.you can take proper and effective action to avoid collision
C.you are traveling slower than surrounding vessels
D.no wake comes from your vessel
A.adapted to
B.used by
C.liable to
D.adaptation to
A.take proper and effective action to avoid collision
B.be stopped within a distance appropriate to the prevailing circumstances and conditions
C.neither A nor B
D.both A and B
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
最新試題
Which effect does speed through the water have on a vessel which is underway in shallow water （）.
The rules state that vessels may depart from the requirements of the Rules when（）.
Which nautical charts are intended for coastwise navigation outside of outlying reefs and shoals（）.
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（）.
A sailing vessel shall not impede the safe passage of a（）．
In the absence of a route leading from seaward，the conventional direction of buoyage generally follows（）.
You are drifting in a locale where there is no current．As a rule，your vessel will lie（）.
Two vessels are approaching each other near head on. What action should be taken to avoid collision?（）.
Preferred channel marks are aids to navigation which all following marks other than（）．
The approach to the roads and harbor from the（）entails no difficulty.