1、航海英语题库船舶操纵船舶操纵08.1 船舶操纵基本知识2151When a vessel navigates in an area with a small underkeel clearance but with adequate space to take avoiding action she _. A. should not be regarded as a vessel constrained by her draught B. should be regarded as a vessel constrained by her draught C. shall be regarded
2、 as a vessel restricted in her ability to maneuver D. should be regarded as a non-displacement vessel KEY: A2152When towing astern,one way to reduce yawing of the tow is to _. A. trim the tow by the stern B. trim the tow by the head C. have the tow on an even keel D. list the tow on the side it is y
3、awing KEY: A2153While moving ahead,a twin-screw ship has an advantage over a single-screw ship because _. A. correct trim will be obtained more easily B. drag effect will be cancelled out C. side forces will be eliminated D. speed will be increased KEY: C2154A racetrack turn would be better than a W
4、illiamson turn in recovering a man overboard if _. A. the man has been missing for a period of time B. the sea water is very cold and the man is visible C. there is thick fog D. the wind was from astern on the original course KEY: B2155A reaching course is one in which the wind _. A. comes directly
5、over the bow B. comes directly over the stern C. comes over an area extending from broad on the bow to the quarter D. has no effect on the vessel KEY: C2156A towing vessel becomes tripped while towing on a hawser astern. What factor is MOST important when assessing the risk of capsizing? A. Length o
6、f the towline B. Height of the towline connection C. Longitudinal position of the towline connection D. Direction of opposing force KEY: B2157A twin screw vessel,making headway with both engines turning ahead,will turn more readily to starboard if you _. A. reverse port engine,apply right rudder B.
7、reverse port engine,rudder amidships C. reverse starboard engine,apply right rudder D. reverse starboard engine,rudder amidships KEY: C2158A twin-screw ship going ahead on the starboard screw only tends to move _. A. in a straight line B. to port C. from side to side D. to starboard KEY: B2159A twin
8、-screw vessel can clear the inboard propeller and maneuver off a pier best by holding a(n) _. A. forward spring line and going slow ahead on the inboard engine B. after spring line and going slow astern on the outboard engine C. forward spring line and going slow ahead on both engines D. forward spr
9、ing line and going slow ahead on the outboard engine KEY: D2160A twin-screw vessel is easier to maneuver than a single-screw vessel because the twin-screw vessel _. A. permits the rudder to move faster B. generates more power C. can turn without using her rudder D. can suck the water away from the r
10、udder KEY: C2161A vessel fitted with twin screws is easier in _ than a vessel with single screw A. turning maneuver B. course setting C. position fixing D. regulating speed KEY: A2162A vessel is considered to be restricted in her ability to maneuver under the Rules if she is _. A. at anchor B. mine-
11、clearing C. engaged in fishing D. engaged in towing KEY: B2163A 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 KEY: B2164A vessel that is dead in
12、the water on an even keel with most of her superstructure forward will lay _. A. AWith the wind abaft the beam or on the stern B. BWith the wind on the beam C. CWith the wind on the bow D. DWith the wind dead ahead KEY: 主2165A vessel towing astern in an operation which severely restricts the towing
13、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 KEY: D2166A vessel travelling down a narrow
14、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 _. A. smelling the bottom B. squatting C. bank suction D. bank cushion KEY: D2167A vessel which through some exceptional circumstance is unable to maneuver as required by th
15、ese 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 KEY: B2168A 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
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