nautical mile during clear weather在晴朗的天气至少能在1海里范围内可见. Obstructions which are a part of the appurtenances 附属物to the main structure, such as mooring piles堆积着的系缆, anchors and mooring buoys, etc., normally are not lighted. In addition, some of the structures are equipped with sound signals (bell, siren, whistle, or horn ). When operating, bells sound one stroke钟的敲击声 every 15 seconds, while sirens, whistles, or horns sound a single two-second blast every 20 seconds. 161. The signal of blast from oil well structures lasts .
A．1 second B．2seconds C．15seconds D．20seconds
162. The items of are not considered as appurtenances to the main structure of oil well.
A．the platform and the derrick B．mooring piles C．anchors D．mooring buoys 163. Oil wells will not use sound signals .
A．when operating B．when not operating
C．during the night time D．during daytime
164. is not implied in the passage.
A．All oil wells use lights as signals B．Some oil wells use lights as signals
C．Some oil wells use sound signals only D．Some oil wells use both lights and sound signals
Passage 42 The ship’s Position in Coast Waters
The certainty with which the ship’s position in coast waters can be known at any moment depends very much on the frequency with which known objects can be observed, the accuracy of the techniques used in making the observations, and the accuracy with which the navigator estimate forces (such as the wind and the tidal stream )that might set the ship off her course. The navigator should always try to reduce the uncertainly in his observations, or at least to recognize the possibility of uncertainty in the techniques he is using. Thus, for example, a range taken by radar is more accurate than a radar bearing, particularly on the bow, a transit of objects marked on the chart has greater certainty than a magnetic compass bearing; a vertical sextant angle and a bearing carries less uncertainty than two bearings; and so on.
The prudent navigator masters all the techniques of coastal navigation and any given moment selects which give greatest certainty to his fix or DR position.
165. The certainty of ship’s position in coastal waters depends on .
A．the frequency of known object being observed
B．the accuracy of the techniques used in making the observation
C．the accuracy of officers’ estimating forces, such as winds and currents D．all of the above 166. How should the navigator do when observing ship’s position in coastal waters? .
A．He should use radar ranges instead of radar bearings, if possible
B．He should always try to make the uncertainty low in his observation
C．He should know the possibility of uncertainty in the techniques he is using D．He should take A,B and C into account
167. Which one of the following is in correct?
A．Winds and currents may deviate偏离 your vessel from your desired course
B．A magnetic compass bearing has less uncertainty than a transit of objects marked on the chart C．A vertical sextant angle and a bearing has greater certainty than two bearings D．The prudent navigator should choose techniques with greatest certainty to his fix
168. is the main topic of this passage.
A．Variety of fixing method B．Techniques of position fixing
C．Position fixing in coastal waters D．Certainty and uncertainty in the techniques being used
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Passage 43 The Vessel Proceeding along the Course of a Narrow Channel or Fairway
The vessel proceeding along the course of a narrow channel or fairway is obliged to keep “as near to the outer limit of the channel or fairway which lies on her starboard side as is safe and practicable.” The same rule obliges 使负义务a vessel of less than 20 m in length or a sailing vessel not to impede the passage of a vessel “which can safely navigate only within a narrow channel or fairway.” The rule also forbids ships to cross a narrow channel or fairway “if such crossing impedes the passage of a vessel which can safely navigate only within such channel or fairway.” A new paragraph was added, stressing that a vessel which was required not to impede the passage of another vessel should take early action to allow sufficient sea room for the safe passage of the other vessel. Such vessel is obliged to fulfil 执行this obligation义务 also when taking avoiding action in accordance with the steering and sailing rules when risk of collision exists. 169. The length of the vessel in this passage refers to
A．LPP B．LOA C．length of her designed waterline D．her Registered length
170. It is required that proceeding along the course of a narrow channel or fairway is obliged to keep “as near to the outer limit of the channel or fairway which lies on her starboard side as is safe and practicable.”
A．the vessel of less than 20 m in length B．sailing vessel C．the vessel of other than those of less than 20 m in length or sailing vessels D．any vessel 171. It is forbidden that to cross a narrow channel or fairway “if such crossing impedes the passage of a vessel which can safely navigate only within such channel or fairway.”
A．the vessel of less than 20 m in length B．sailing vessel
C．the vessel of other than those of less than 20 m in length or sailing vessels D．any vessel
172. It is implied in the passage that a vessel is obliged to take early action to allow sufficient sea room for the safe passage of the other vessel.
A．when proceeding along the course of a narrow channel or fairway
B．when taking avoiding action in accordance with the steering and sailing rules C．when navigating within a narrow channel or fairway D．when impeding the passage of another vessel
Passage 44 The Behaviour of Vessels in near Traffic Separation Schemes (TSS)
In areas where TSS did not exist the number of collisions rose sharply. New TSS are introduced regularly and existing ones are amended when necessary to respond to changed traffic conditions. To enable this to be done as quickly as possible the MSC has been authorized to adopt and amend TSS on behalf of the organization. Rule 10 states that ships crossing traffic lanes are required to do so “ as nearly as practicable at right angles to the general direction of traffic flow.” This reduces confusion to other ships as to the crossing vessel’s intentions and course and at the same time enables that vessel to cross the lane as quickly as possible.
MSC----海事服务中心 173. is not the benefit of rule 10.
A．The crossing vessel is crossing the lane quickly
B．The crossing vessel’s intention is not likely confused by other vessels
C．The crossing vessel’s course is not likely confused by other vessels
D．it reduces confusion to the crossing as to the intentions and courses of the vessels sailing in the schemes 174. The TSS are adopt and amended by .
A．IMO B．the owners
C．the government of the country D．the competent authorities主管当局 175. When newly introduced, the TSS are subject to amend by MSC because .
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A．they are perfect B．there are some mistakes in the schemes C．the traffic conditions are changing D．MSC is authorized to amend the schemes
176. It is implied in the passage that the purpose of introduction of TSS schemes is to .
A．make it possible that all vessels cross the schemes “ as nearly as practicable at right angles to the general direction of traffic flow”
B．reduce confusion to other ships as to the crossing vessel’s intentions and course C．enables that vessel to cross the lane as quickly D．reduce the number of collision
Passage45 Signals to Attract Attention
If necessary to attract the attention 引起??的注意of another vessel any vessel may make light or sound signals that cannot be mistaken for any signal authorized elsewhere in the rules, or may direct指向 the beam正横 of her searchlight in the direction of the danger, in such a way as not to embarrass（使）困扰 any vessel. Any light to attract the attention of another vessel shall be such that it cannot be mistaken for any aid to navigation. For the purpose of this rule the use of high intensity光照强度 intermittent间歇的 or revolving旋转 lights, such as strobe频闪观测器、闪光灯lights, shall be avoided.
177. The item of is not among the lights that shall be avoided to attract the attention of other vessels.
A．high intensity intermittent B．strobe lights C．revolving lights D．searchlight 178. When using searchlight to attract the attention of another vessel, you .
A．should ensure that other vessel is embarrassed
B．may direct the beam of her searchlight in the direction of the danger
C．should ensure that other vessel is on your beam D．should ensure that other vessel is in danger
179. is not recommended to attract the attention of another vessels.
A．Light or sound signals that cannot be mistaken for any signal authorized signal B．Searchlight
C．Light that cannot be mistaken for any aid to navigation
D．High intensity intermittent or revolving light
180. The passage is possibly extracted from .
A．Colreg B．IMDG code C．SOLAS D．Guide to Port Entry
Passage 46 NEW AND AMENDED TRAFFIC SEPARATION SCHEMES (30)
OFF TUSKAR ROCK (amended scheme)
(Reference chart: British Admiralty 1787，2004 edition. Description of the traffic separation scheme
(a) A separation zone，two miles wide，is centered upon the following geographical positions: (1) 52°14'.0 N，6°00'.8 W (2) 52°08'.5 N，6°03'.8 W (3) 52°04'.7 N，6°11'.5 W (b) A traffic lane，three miles wide，is established on each side of the separation zone. Inshore traffic zone
The area bounded between the landward boundary of the traffic separation scheme and lines connecting Tuskar Rock Lighthouse (52°12'.2N，6°12'.4W) and the following geographical positions is designated an inshore traffic zone:
(4) 52°15'.2 N，6°57'.0 W (northerly corner of the scheme) (5) 52°07'.8 N，6°15'.6 W (westerly corner of the scheme) Passage 38
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181-117.The distance between the seaward boundary and landward boundary the traffic separation scheme is ________ miles.
A. 2 B. 3 C. 5 D. 8
182-118.The traffic separation scheme consists of ________ traffic lanes. A. 2 B. 3 C. 4 D. 5
183-119. Tuskar Rock Lighthouse is located nearby the ________. A. westerly corner of the scheme B. northerly corner of the scheme C. middle of the scheme D. outside of the scheme
184-120.The traffic separation scheme is probably leading in ________ direction. A. NW-SE B. N-S C. E-W D. NE-SW
Passage 47
Area to Be Avoid
Areas to be avoided are adopted by the IMO and are usually established to prevent possible grounding of tankers and other ships carrying hazardous cargo in environmentally sensitive易受损害的 areas. They may also be established to keep particular classed of ships 特殊种类的船舶away from areas where navigation is particularly hazardous.
They are depicted 描绘on charts by dashed lines破折线，即虚线 or T-dashed lines, either point to point straight lines or as a circle centered on a feature in question such as rock or island. The smallest may cover less than a mile in extent; the largest may cover hundreds of square miles of coral reefs or dangerous shoals. Notes on the appropriate charts and in Sailing Directions tell which classed of ships are excluded from the area.
185. is not an area to be avoided （B）
186. If an area to be avoided is a circle, the largest diameter is likely to be .
A．hundreds of miles B．less than one hundred of miles
C．several miles D．one mile
187. It is possible to find information to tell which classes of ships are excluded from the area to be avoided in .
A．NM B．Guide to Port Entry C．Sailing Directions D．VTS 188. It is inferred that areas to be avoided are to be kept away by all the following ships except .
A．tankers B．ships carrying hazardous cargo C．particular classes of ships D．general cargo carriers
Passage 48 Lights and Beacons on Charts
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Passage 10
The amount of detail （详细的程度）shown on a chart varies with the scale of the chart. On a large scale chart，for example，full details of all lights and fog signals are shown，but on smaller scales the order of reduction of information in elevation（海拔高度信息），period，range，until on an ocean chart of the area only lights with a range of 15 miles or more will normally be inserted，and then only their light-star and magenta flare（罗经花==》给出磁罗经磁差信息的图示）. On the other hand，radio beacons （信标，反射器）are omitted from large scale charts where their use would be inappropriate（不恰当的），and，unless they are long range beacons，from ocean charts. 189-037.Ocean charts are ________ ones.
A. large scale B. small scale C. inappropriate D. omitted
190-038.What cannot be found in the large scale charts? ________.
A. Radio beacons of small range B. Full details of all lights.
C. Elevations D. Full details of fog signals 191-039.The light-star and magenta flare are shown on ________. A. large scale charts only B. small scale charts only
C. both small and large scale charts D. neither small nor large scale charts
192-040.The title of this passage should be ________. A. Lights and Beacons on Charts
B. Characteristic of Lights and Beacons
C. Corrections to Small and Large Scale charts D. Navigational Charts Publication
Passage 50 Recommended Routes
Recommended routes across the North Atlantic have been followed since 1898, when the risk of collision between increasing numbers of ships because too great, particularly at junction points会合点. The SOLAS codifies the use of certain routes. These routes vary with the seasons, with winter and summer tracks chosen so as to avoid iceberg prone areas. These routes are often shown on charts, particularly small scale ones, and are generally used to calculate distances between ports in tables.
Recommended routes consists of 由??组成single tracks, either one-way or two-way. Two-way routes show the best water through confined areas限制区域 such as inland routes among islands and reefs暗礁. Ships following these routes can expect to meet other vessels head-on and engage in normal passings. One-way routes are generally found in areas where many ships are on similar or opposing courses. They are intended 意图to separate opposing traffic so that most maneuvers are overtaking situations instead of the more dangerous meeting situation.
193. Head-on situation is mostly expected on .
A．single tracks B．one-way routes C．two-way routes D．recommended routes 194. Recommended routes vary with .
A．tracks B．seasons C．charts D．tables
195. Ships should follow .
A．single tracks B．one-way routes C．two-way routes D．recommended routes 196. It is inferred that risk of collision is reduced to minimum on .
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