單項選擇題()is not a type of IALA maritime buoyage system.

A.special marks
B.isolated danger marks
C.cardinal marks
D.fore and aft marks


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1.單項選擇題When using the anchor to steady the bow while approaching a dock you must be aware of the fact that().

A.the vessel will tend to take a large sheer towards the side where the anchor is down
B.steering control is ineffective in trying to turn to the side opposite to that of the anchor being used
C.the anchor cable must never lead under the hull
D.using an offshore anchor decreases the chances of the anchor holding

2.單項選擇題When underway and proceeding ahead,as the speed increases,the pivot point tends to().

A.move aft
B.move forward
C.move lower
D.remain stationary

3.單項選擇題When towing in an open seaway,it is important to use a towing line().

A.made only of wire rope,due to possible weather conditions
B.that will have the tow on a crest while your vessel is in a trough
C.that will have the tow on a crest while your vessel is on a crest
D.with little dip to gain maximum control of the tow

4.單項選擇題When towing astern,increased catenary will().

A.increase control of the tow
B.prevent the towing vessel from going in irons
C.make the towing vessel less maneuverable
D.reduce shock stress on the towing hawser

5.單項選擇題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().

A.eddies under the bar
B.swift current under the bar causing loss of control
C.cross-currents pushing the tow away from the bar
D.cross-currents pushing the tow into the bar

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You are entering an east coast port and see a buoy with a yellow triangle painted on it.This indicates().

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When approaching Block Island Sound from Long Island Sound,you will enter waters governed by the International Rules of the Road when you().

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