航海英语49~58期 绝密版

C. Port buoy D. Cardinal buoy KEY: D

35[821] Mean high water is the average height of ___D___

A. the higher high waters B. the lower high waters C. the lower of the two daily tides D. all high waters 36[149]The meaning of ebb tide is that ______. A. tide is falling from high water to low water B. tide is rising from low water to high water C. tide is reaching to a highest level D. tide is reaching to a lowest level KEY: A

37[5569]After transferring a weight forward on a vessel，the draft at the center of flotation will ______.

A. change，depending on the location of the LCG B. increase C. decrease

D. remain constant KEY: D

38[5575]If the buoyant force on a ship's hull is equal to the displacement tonnage，the ship will ______. A. require ballast B. be down by the head C. sink D. float KEY: D

39[5588]Reducing the liquid free surfaces in a vessel reduces the ______. A. roll period

B. metacentric height C. waterplane area D. vessel's draft KEY: A

40 2116 How should you signal the crane operator to raise the boom?( 老题库) A. Extend arm with the thumb pointing up and flex the fingers in and out. B. Place both fists in front of the body with the thumbs pointing upward.

C. With forearm vertical and forefinger pointing up, move hand in small horizontal

circles. D.

D你应怎样指挥起货机手提升吊杆？ 41 71. Where is the draft largest when the ship has an aft trim? A.Forward B.Aft

C.Midships

D.The drafts are equal all over the ship 答案：B当船舶尾倾时最大吃水在哪里？船尾 42 [3207]Filler cargo refers to ______. A. durable packages B. small pieces

C. the cargo in which the voids appear

D. the cargo suitable for stowage in void spaces KEY: D

43[3221]Strong smelling cargo should be stowed ______ the cargo absorbing foreign smell． A. together with B. on top of C. underneath D. away from KEY: D

44[4388]The damaged cargo is not allowed to export without ______. A. repairing or replacing B. to repair or to replace C. being repaired or replaced D. to be repaired or replaced KEY: C

45[4028]The Agent promised to keep me ______ of how our business was going on．

A. to be informed B. informed C. on informing D. informing KEY: B

461993 The man directing and supervising the work of stevedores is the ____D__.(老题库)

A. Local agent. B. Watchman. C. Docker. D.

指导和监督码头工人工作的人是。

471267 The tropical cyclone eastly 10 knots and expected __C___ from 120000 GMT. A. Falling down. B. Fixing up. C. . D. Dropping down.

热带气旋以10节的速度向偏东方向移动并预计自世界时12日0000起开始。 48[1292] TYPHOON FORECAST MOVE 285 DEG 15 KNOT FIRST 12 HOURS THEN 280 DEG 17 KNOTS NEXT 12 HOURS. The movement of the Typhoon is in ___C___ quadrant. A. NE B. SE C. NW D. SW

49[2820]Swell is the rise and fall of the ocean's surface due to ______. A. fetch

B. distant winds C. local storms

D. the pull of the moon KEY: B

50[331]Fog is most commonly associated with a(n) ______. A. warm front at night B. low pressure area C. anticyclone

D. lack of frontal activity KEY: A

51[3422]In most cases，the direction of the apparent wind lies between the bow and ______.

A. the direction of the true wind B. true north

C. the beam on the windward side D. the beam on the lee side

KEY: A

52[3479]The inner bottom is the ______. A. tank top

B. compartment between the tank top and shell of the vessel C. inner side of the vessel's shell

D. space between two transverse bottom frames KEY: A

53___D___ is halfway between the forward and after perpendiculars and is reference point for vessel construction A half length B mid_body C center line D amidships

54. Watertight compartments are separated by __C___. A. Longitudinal bulkhead B. Tween decks C. Dunnages

D. Decks and bulkheads 答案：C水密舱被垫板分开

55[823]The material used extensively as electrolytic protection around bronze propellers is ______. A. Brass B. Copper C. Lead D. Zinc KEY: D

56[3560]Before starting any diesel or gasoline engine，which of the following must be checked? A. Oil level

B. Flow of cooling water C. Exhaust discharge D. All of the above KEY: A

57[5295]The holding capability of an anchor is primarily determined by the ______.

A. shape of the anchor

B. stowage of the anchor on board C. anchor's ability to dig in

D. size of the vessel and its draft KEY: C

58. A Racon can help with _D_?

A.measuring the distance B.measuring the relative C.identifying centimeters D.identifying a seamark

59. [3872]The radio waves used for radar are very short，only ______ long． A. a few centimeters B. a few fathoms C. a few meters D. a few feet KEY: A

60. 103. What type of radar can activate a racon? A. X-band radar B. S-band radar C. C-band radar D. No radar can

答案：A什么类型的雷达能激活雷达信标？X波段的雷达

61. [3910]Magnetic variation changes with a change in ______. A. the vessel's heading B. sea conditions C. seasons

D. the vessel's position KEY: D

62. [3818]Deviation is the angle between the ______. A. true meridian and the axis of the compass card B. true meridian and the magnetic meridian

C. magnetic meridian and the axis of the compass card D. axis of the compass card and the degaussing meridian KEY: C

63. [15]Which one of the followings is incorrect about magnetic compass? A.The magentic compass is compulsory on my vessel B.The magentic compass is prone to error

C.The magentic compass is always placed inside steel constructions

D.The magentic compass needs to be calibrated to compensate for local magnetic distortion

答案：C关于磁罗经下面哪项是不正确的？磁罗经总是放在刚性结构里面

64. With respect to automatic identification systems(AIS) which of the following information is broadcast every one to ten seconds? C

A.Vessel’s draft B.Air Draft C.Navigational status D.Dimensions of vessel

65. 123. In case of AIS overload, what can you expect? A. AIS will shut down B. AIS will “freeze”

C. Largest far away drop out D. Closes targets drop out

答案：C如果AIS超负荷，你能预料到什么？最大远离到退出

66. [17]What may affect the accuracy of sounding with echo sounder? A.Sea bottom B.Ship's speed C.Speed of current

D.Water temperature and density

答案：D什么会影响回声探测仪的精度？水的温度和密度

67. [1625] Which piece of required GMDSS equipment is the primary source of transmitting locating signals? B

A. Radio Direction Finder B. An EPIRB transmitting on 406 MHz C. Survival Craft Transceiver D. A SART transmitting on 406 MHz

68. [588] How can the SART’s audible tone monitor be used?___A___.