只要可燃液体与一定比例的空气混合，其发出的蒸汽被点燃时，就会燃烧。 27. The ARPA may swap targets when automatically tracking if two targets ____ A. are tracked on reciprocal bearings B. are tracked at the same range Key: D
当自动跟踪时，如果两个目标相互靠近经过，自动雷达标绘仪会交换目标。 28. _____ are published for the correction of Admiralty Charts. A. Admiralty Sailing Directions B. Admiralty List of Signals Key: D
出版《英版航海通告》，以便改正英版海图。
29. _____ sends a radio signal from the bottom of the ship to the sea-bed, from which it is
reflected. A. The marine sextant B. The chronometer Key: C
回声测深仪从船底向海底发送信号，信号又从海底反射回来。
30. ANCHOR HAS ITS OWN CABLE TWISTED AROUND IT defines ______. A. foul of anchor B. dropping anchor
C. weighing anchor D. walking back anchor C. The echo sounder D. The radar
C. Mariner?s Handbook D. Admiralty Notices to Mariners C. are tracked on the same bearing D. pass closely to each other
key: A“锚链拧绞在锚的周围”是锚绞缠“的定义。
31. A traffic separation zone is that part of a traffic separation scheme which _____. A. is between the scheme and the nearest land B. contains all the traffic moving in one direction C. is designated as an anchorage area
D. separates traffic proceeding in one direction from traffic from proceeding in the opposite
direction
Key: D通航分隔带是将朝一个方向行使的船舶与朝相反方向行使的船舶隔离开来的分道通航制的那一部分。
32. _____ on still water indictes how loading weight distribution affects on longitudinal strength. A. Bending moment
B. local strength
C. shear force
D. displacement
Key: A静水弯矩指的是受载重量的分布如何影响船舶的纵向强度。
33. If the electronic chart is part of an ECDIS, it must display the minimum data required by
IMO/IHO, to include all of the following EXCEPT _____. A. hydrography B. aids to navigation
C. tidal currents D. regulatory boundaries
key: C如果电子海图是电子海图显示及信息系统的一部分，那么它就必须显示国际海事组织
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/国际水文组织所要求的最低数据量，包括以下各项，除了潮流。 34. How many hours of rest is the minimum required in a normal day? A. 14 hours B. 10 hours C. 6 hours
D. It does not matter as long as my overtime is paid for Key: B
在正常日子里，要求的最少休息时间是多少小时？10小时。
35. The hatch at the after end of the canopy in a lifeboat _____ the after lifting hook, painter, and
tow line.
A. give access to通往 B. links up with key: A
救生艇蓬盖后部的天窗通往后部的吊钩、系艇索和拖索。
36. The master shall ensure that any seafarers _____ are provided with an adequate period of rest. A. who have performed work for 14 hours
B. who have performed work in a scheduled rest period C. who have performed work in a scheduled work period D. who works hard key: B
船长应保证在计划休息时段已经工作的海员被提供足够的休息时间。 37. What percentage of the baggage is required to be checked at Security Level 1? A. 25-50%
B. The percentage is not specified Key: B
在一级保安级别，要求被检查的行李的百分比是多少？没有规定。
38. From ______ the information concerning the tons per centimeter immersion of a vessel shall be usually found. A. variation curve B. dead weight scale key: B
根据载重量标尺，可以得到关于船舶每厘米浸没吨数的信息。
39. All engines in lifeboats and rescue boats shall be run for a total period of not less than _____ in weekly inspections. A. 2 minutes Key: B
在每周的检查中，救生艇和救助艇内的所有发动机应运行至少3分钟。
B. 3 minutes
C. 4 minutes
D. 5 Minutes
C. table of azimuth D. freeboard assignment C. 100% D. 5-15%
C. have contact with D. is constructed of
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40. Emergency escape breathing device on board shall have a duration of service no less than ______. A. 20 minutes Key: B
船上的应急逃生呼吸装置应有至少15分钟的服务持续时间。 41. The original equilibrium position is stable when _____. A. metacentric height is positive B. metacentric radius is positive Key: A
当稳心高度值为正时，原始平衡位置是稳定的。 42. ______ is used for lifting cargo. A. A mooring winch B. A windlass Key: C
甲板克令吊被用来起吊货物。
43. You are standing the wheelwatch on entering port and the master gives you a rudder command
which conflicts with a rudder command from the pilot. What should you do? A. obey the master?s B. obey the pilot?s
C. bring the rudder to a position midway between the two conflicting orders D. ask the pilot if he relinquishes control key: A
进港时，你值舵班，船长下达了一个舵令，该舵令与引航员的舵令相冲突。你该做什么？遵 守船长的舵令。
44. All marks within the IALA system are distinguished by _____. ○1shape ○2top mark ○3
light characteristics ○4color
1○2 A. ○
3○4 B. ○
2○3○4 C. ○
1○2○3○4 D. ○
B. 15 minutes C. 10 minutes D. 5 minutes
C. KG exceed maximum allowable limits D. Free surfaces are excessive
C. A deck crane D. A lifeboat
Key: D
在国际航标协会系统中，所有航标通过其形状、顶标、灯质和颜色来区别。 45. Which chart symbol indicates the bottom is clay? A. Cly Key: A
哪个海图符号表示底质是粘泥？
46. The principal purpose of adjustment of the magnetic compass is to eliminate _____ as far as
possible. A. variation
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B. Cla C. Cl D. C
B. compass error
C. deviation key: C
矫正磁罗经的主要目的是见可能消除自差。
D. earth?s magnetic force
47. Which statement is TRUE when comparing cold and warm fronts? A. Cold fronts are more violent and of shorter duration B. Cold fronts are milder and last longer
C. They are very similar with the exception of wind direction D. Warm fronts are more violent and of longer duration Key: A
当比较冷风和暖风时，哪项是对的？冷风更加剧烈，持续时间更短。 48. Who can suggest changes to the SMS? A. The designated person B. The captain Key: C
谁可以提出安全管理体系的改进意见？所有高级船员和普通船员。
49. You are underway in thick fog. You have not determined if risk of collision exists. Which
statement is true?
A. Your speed must be reduced to bare steerage ways B. A look-out is not required if the radar is on
C. The radar should always be kept on a short-range scale D. Fog signals are only required when a vessel is detected by radar Key: A
你船雾中在航，你还未确定是否存在碰撞危险，那项是对的？你不许讲船速境地到维持舵效。50. Between April and November, squalls _____ as Sumateras ______ in Malacca Strait in the
late afternoon or overnight and ______ E to affect the W coast of Malaysia and Singapore Island.
A. known, developing, move B. known, developed, move key: D
在四月和十一月之间，被称为苏门答腊的风飑在傍晚或夜间在马六甲海峡生成，并向东移动，影响马来西亚西海岸和新加坡岛。
51. From ______ mariners can know the data of tide. A. the Sea Pilot B. the Cargo Plan key: C
海员从《潮汐表》中可以知道潮汐的数据。
C. the Tide Table D. the Port List
C. known, develop, moving D. known, develop, move C. All officers and crew D. All senior officer
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