單項選擇題Apparent wind speed blowing across a vessel under tow can be measured by a(n)（）.

A.barometer
B.wind vane
C.anemometer
D.thermometer


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1.單項選擇題A vessel，which is unable to maneuver due to some exceptional circumstance，shall exhibit （）.

A.during the day，three balls in a vertical line
B.during the day，three shapes，the highest and lowest being balls and the middle being a diamond
C.when making way at night，two all-round red lights，sidelights，and a sternlight
D.when making way at night，masthead lights，sidelights，and a sternlight

2.單項選擇題A vessel which through some exceptional circumstance is unable to maneuver as required by these Rules and is therefore unable to keep out of the way of another vessel is called（）.

A.a vessel restricted in her ability to maneuver
B.a vessel not under command
C.a vessel engaged in fishing
D.a vessel constrained by her draught

4.單項選擇題A vessel towing astern in an operation which severely restricts the towing vessel and her tow in their ability to change course shall，when making way，exhibit（）.

A.the masthead lights for a towing vessel
B.the lights for a vessel restricted in its ability to maneuver
C.sidelights，sternlight and towing light
D.All of the above

5.單項選擇題A vessel is equipped with a single right-handed screw. With rudder amidships and calm wind，the vessel will most likely back（）.

A.straight astern
B.to port
C.to starboard
D.in no particular direction

最新試題

How does the effect known as bank suction act on a single-screw vessel proceeding along a narrow channel?（）.

題型：單項選擇題

One advantage of chain over wire rope for a tow bridle is that chain（）.

題型：單項選擇題

The biggest problem you generally encounter while towing a single tow astern is（）.

題型：單項選擇題

In a following sea，a wave has overtaken your vessel and thrown the stern to starboard. To continue along your original course，you should（）.

題型：單項選擇題

A vessel travelling down a narrow channel，especially if the draft is nearly equal to the depth of the water，may set off the nearer side. This effect is known as（）.

題型：單項選擇題

If you are the stand-on vessel in a crossing situation，you may take action to avoid collision by your maneuver alone. When may this action be taken?（）.

題型：單項選擇題

In order to back a right-handed，single-screw vessel in a straight line，you will probably need to use（）.

題型：單項選擇題

A vessel is equipped with a single right-handed screw. With rudder amidships and calm wind，the vessel will most likely back（）.

題型：單項選擇題

If a towing vessel and her tow are severely restricted in their ability to change course，they may show lights in addition to their towing identification lights. These additional lights may be shown if the tow is（）.

題型：單項選擇題

Once a towline is connected between the towing vessel and the disabled vessel，the towing vessel should（）.

題型：單項選擇題