vessel when it has a refrigerated cargo space? ① A gas mask using a suitable canister to protect against the refrigerant. ② A self-contained breathing apparatus.
A. ① only B. Either ① or ② C. ② only D. Neither ① nor ②
KEY: C当你船舶有冷藏货物时要配备什么？1）使用适当的带过滤器的呼吸器来保护制冷剂。2）自给式呼吸器。 [26]______should be used during the poor visibility if the rader?s screen shows heavy sea returns.
A. Gain Control B. Brilliant Control C. Anti-clutter Sea Control D. Sweep Intercept KEY: C海浪抑制干扰按钮应该在能见度差并且雷达屏幕上显示海浪回波很大时使用。
[27]______the incomplete nature of the survey, heavy draught vessels are warned not to navigate within the 10 fathom line.
A. Because B. Owing to C. Having been D. Being
KEY: B由于测量的部完整性，警告深吃水船舶不得在10拓等深线内航行。
[28]______the survivors know more of how to cope with cold water in the sinking of MV Titanic in 1912 countless lives ______.
A. Have / could have been saved B. Have / could have saved
C. Had / could has saved D. had / could have been saved
KEY: D如果那些幸存者懂得多一些在冷水中的救生方法，那么在1912年泰坦尼克号沉没事件中将会有更多的生命能幸存。
[29]______will be paid by shipowners after tallyman doing the tally work.
A. Cargo-handling expenses B. Tally money C. Cargo-tallying dues D. Tally fees
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KEY: D理货工人在理货完成后，船东将付给他们费用。 [30]______20 targets can be tracked at one time．When maximum tracking capacity is reached，no further acquisitions(捕获) are possible．
A．As many as B．So many as C．As much as D．As more as
KEY: A一次可以获取多达20个物标，当跟踪能力达到最大时候，就不再录取了。
[31]______amplify charted detail and contain information needed for safe navigation．
A．Admiralty Sailing Directions B．Admiralty List of Lights
C．Admiralty List of Signals D．Admiralty Notices to Mariners
KEY: A英版航路指南增加海图制图的细节和包含航行安全所需的信息。
[32]______are published for the correction of Admiralty Charts．
A．Admiralty Sailing Directions B．Admiralty List of Signals C．Mariner's Handbook D．Admiralty Notices to Mariners
KEY: D英版航海通告出版是为了英版海图的改正。 [33]______cargoes chargeable at the same rate，part of one ton shall be taken as one ton．
A．At B．For C．On D．About
KEY: B对于在相同的一吨货物征收费的部分，应视为一吨。
[34]______chart 3994，positions read from this chart should be shifted 0．03 minutes Northward．
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A．To consideer B．To check C．To examine D．To agree with
KEY: D为了与3994号海图一致，从这张海图上读出的位置应该向北移动0.03分的距离。 [35]同上
[36]______day，pilot flag should be displayed from main mast．
A．From B．By C．On D．With KEY: B在白天，引航旗将被悬挂在主桅杆上。
[37]______get your engine ready before six tomorrow morning．
A．You’d better B．You would better C．You at least D．You at most KEY: A你最好明天早上六点前备妥主机。
[38]______is a device used to measure atmospheric pressure． A．Barometer B．Thermometer C．Chronometer D．Speedometer
KEY: A气压计装置用于测量大气压。
[39]______is a rounded projection at the forward end of a ship which reduces water resistance，thus allowing an increase in speed when the ships is in ballast．
A．Bulbous bow B．Ellipse bow
C．Cyclical projection D．Gnomonic projection KEY: A球鼻首是在船舶最前部圆形突出的部分，它用于减少水阻力，因此增加速度当船舶压载时。
[40]______is an angle at which a cargo settles in the hold of a ship，between the horizontal and the slope made by a bulk cargo such as grain or iron ore．
A．Angle of loll B．Angle of inclination C．Angle of repose D．Angle of list
KEY: C静止角是在货物进入货舱时，水平面与倾斜面的
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夹角，散货船上比如散谷和铁矿石。
[41]______is not a process of weathering of the oil spilled in the sea water． A．Evaporation B．Dispersion C．Emulsification D．Drifting
KEY: D船员用浮油刮集船清扫不是一个油溢入海水中的风化过程。
[42]______is one of four uprights comprising a cell in a containership into which a container fits
exactly．These uprights hold the container in position． A．stanchion B．shore C．cellular doublebottom D．Ceil guide
KEY: D箱格导轨式由四个支柱组成的，集装箱船上每个单元内能准确的装入一个集装箱，支柱用于固定集装箱的位置。
[43]______is the number of millimeters by which the mean draft changes when a ship passes from salt water to fresh water，or vice versa，whilst floating at the loaded draft． A．TPC B．The Fresh Water Allowance
C．Parallel sinking of the ship D．UKC
KEY: B淡水限额允许毫米变化量，当船舶由海水进入淡水中吃水变化，或反之依然，满载浮力吃水变化。
[44]______is the process by which the position of the vessel at any moment is found by applying the last well determined position to the run that has been made since，using for this purpose the ship's course and the distance being those indicated by log．
A．Dead reckoning B．Dead weight C．Dead slow ahead D．Dead slow astern KEY: A推算船位是任何时刻船位可通过前次准确的定位得到的过程，计程仪所显示的船舶航向和距离数据用于此
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目的。 [45]
[46]______is used for heaving up and slacking away the anchor and chain．
A．A mooring winch B．A windlass
C．A deck crane D．A lifeboat engine KEY: B起锚机用于拉紧松弛的锚和锚链。
[47]______means the curve on the earth's surface which cuts all the meridians at the same angle．
A．Great Circle B．Position Line C．Rhumb line D．True Bearing KEY: C恒向线解释为在地球表面与所有的经线（子午线）切割相交成相同的角度曲线。
[48]______of a radar is governed by the horizontal beam width of the scanner which depends to a great extent on its physical size．
A．Range discrimination B．Bearing discrimination
C．Echo discrimination D．Target discrimination
KEY: B雷达方位的识别是扫描物体的实际尺度在很大程度上取决于水平波束的宽度。
[49]______of the following conditions will cause a vessel's bottom to be subjected to tension stresses．
A．Concentration of weight aft
B．Concentration of weight forward C．Concentration of weight amidships
D．Concentration of weight at both ends of the vessel KEY: C重量集中在船舶中部会使船舶受到拉应力。
[50]______of the following need NOT be entered in the Official Logbook？
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