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[172]同上
[173] A half-height container is used ______.
A. to carry cargos of low density B. when stowage space is limited
C. to carry cargos such as steel products or drums D. to double the stowage capacity of the vessel
KEY: C 半高集装箱用来装载货物，例如钢铁制品、铁桶。
[174] A head on situation shall be deemed to exist at night when a power-driven vessel sees another power-driven vessel ahead and ______. A. one sidelight and the masthead light are visible B. the vessels will pass closer than half a mile C. both vessels sound one prolonged blast D. both sidelights and masthead light(s) are visible
KEY: D当一机动船看到另一机动船在船首，并看到两侧舷灯和桅灯时，应视为存在对遇局面。
[175] A heated bulkhead has the effect on a hygroscopic commodity of ______. A. causing moisture to accumulate against the bulkhead B. lowering the vapor pressure of the commodity C. lowering the dew point of the air D. raising the vapor pressure of the commodity
KEY: D加热舱壁会使液体货物的蒸汽压力升高。
[176] A helmsman receives the command RIGHT 15 DEGREES RUDDER. The helmsman’s IMMEDIATE reply should be ______.
A. AYE AYE SIR B. RIGHT 15 DEGREES RUDDER
C. RUDDER IS RIGHT 15 D. No reply is necessary, just carry out the order KEY: B舵工听到右舵十五度的操舵命令时，立即重复右舵十五度。
[177] A high cube container is designed specifically to ______. A. carry low density cargoes B. protect fragile cargoes
C. stow cargoes with concentrated weights such as machinery D. carry cargoes of very low stowage factors KEY: A大体积集装箱用于装载轻泡货物。
[178] A high-velocity fog stream can be used in fire fighting situations to drive heat and smoke ahead of the fire fighters in a passageway. This technique should only be used when ______. A. using a 2-1/2 inch hose B. there is an outlet for the smoke and heat
C. the fire is totally contained by the ship’s structure D. at least two fog streams can be used
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KEY: B烟或热量驱动走廊上的消防器，高速率雾蒸汽用于灭火，这种技术应仅用于由烟和热量的出口。
[179] A hook that will release quickly is a ______.
A. longshore hook B. margin hook C. marginal hook D. pelican hook KEY: D速脱钩能迅速释放。
[180] A hurricane moving northeast out of the Gulf passes west of your position. You could expect all of the following EXPECT ______.
A. higher than normal swells B. high winds C. winds veering from south, through west, to northwest D. light showers KEY: D飓风从海湾向东北方向移动，从你船西边通过，将遇到下列除小阵雨外的情况。
[181]同上
[182] A hydraulic accumulator aboard a ship is designed to ______.
A. store fluid under pressure B. act as a fluid reservoir C. provide overpressure relief D. replenish fluid to a system KEY: A船上的液体储存器被设计为用来储存液体的压力之下。
[183] A hydrostatic release mechanism for a liferaft ______. A. must be wet before it will release
B. should be kept in a watertight cover except in an emergency C. will inflate the raft in its cradle if operated manually
D. must be submerged to a certain depth to release automatically
KEY: D救生筏上的静水压力释放装置必须在侵入一定水深后才能自动释放。
[184] A hygrometer is device used for determining ______.
A. the absolute temperature B. atmospheric pressure C. wind velocity D. relative humidity KEY: D湿度计是用来确定相对湿度的仪器。
[185]同上
[186] A hygroscopic cargo is defined as a cargo ______. A. capable of absorbing moisture in the form of a gas B. capable of giving off moisture in the form of a liquid C. that is shipped in a liquid state D. that will ignite in contact with water
KEY: A吸湿货物定义为能够吸附气体水分的货物。
[187] A journal kept by the officer of the watch in which day to day happenings are recorded regarding the deck department is the ______.
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A. cargo record book B. deck rough log C. bell book D. Official Logbook
KEY: B值班驾驶员保管记录有关甲板部每天发生情况的日志是甲板日志（航海日志草本）。
[188]同上
[189] A Kort nozzle is a(n) ______.
A. hollow tube surrounding the propeller used to improve thrust B. nozzle attached to a firefighting hose
C. intake valve on a diesel engine D. piston cylinder on a diesel engine
KEY: AKort nozzle（科特导流管）是中间空心的，在螺旋桨周围的用来提高侧推力的导流管。
[190] A large navigational buoy (LNB) is painted ______. A. red B. yellow
C. with red and white vertical stripes
D. with a distinct color and pattern unique to each buoy KEY: A大型导航浮筒漆成红色。
[191] A large oil fire on the deck of a ship can be fought most effectively with ______. A. dry chemical B. foam
C. high-velocity fog D. water (cartridge-operated)、
KEY: B甲板上大量由油水引起的火灾最有效的扑救方法是泡沫。
[192] A lashing used to secure two barges side by side, lashed in an X fashion, is called a ______. A. backing wire B. scissor wire C. face wire D. breast wire KEY: B用于两并靠船舶的绑扎，绑扎成“X”形状，被叫做交叉绑扎。
[193]A life line must be connected to the life raft______．
A．at the bow B．at the stern C．in the middle D．all around KEY: D救生索必须连续绕在救生筏四周。
[194] A life preserver or buoyant work vest is required to be worn on a ship when a person is ____ A. working on the rig floor B. working over water
C. working on the pipe racks D. operating line throwing equipment KEY: B在船上救生用具或有浮力的工作服当人员在水里工作时要求被穿。
[195] A light siglinal consisting of three flashes means ______.
A. I an in doubt as to your actions B. My engines are full speed astern C. I desire to overtake you D. I am operating astern propulsion KEY: D由三闪组成的灯光信号，表示我船正在后退。
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[196] A light used to signal passing intentions must be an ______.
A. all-round yellow light only B. all-round white light only
C. all-round blue light only D. alternating red and yellow light KEY: B被用作操作意图信号的灯必须是环照白灯。
[197] A line connecting all possible positions of your vessel at any given time is a ______. A. longitude line B. latitude line C. line of position D. Fix KEY: C在任何时候，你船的船位联系时船位线。
[198]同上
[199] A line of position from a celestial observation is a segment of a ______. A. circle of equal altitude B. parallel of declination C. parallel of altitude D. vertical circle KEY: A天体观测得到的船位线是等高度圈的一部分。
[200] A line of position is ______.
A. a line connecting two charted objects
B. a line on some point of which the vessel may be presumed to be located C. the position of your vessel D. not used in a running fix
KEY: B船位线是船舶一些推测位置点的连线。
[201] A load line of a ship is assigned by ______.
A. Minerals Management Service B. Department of Energy
C. Corps of Engineers D. A recognized classification society approved KEY: D船舶载重线是通过认可的船级社批准、勘划的。
[202]同上
[203] A lookout can leave his station ______.
A. at the end of the watch B. at any time
C. ONLY when properly relieved D. 15 minutes before the end of the watch KEY: C瞭望人员只有在交班时方可离开。
[204]同上
[205] A low in a marine weather report is an air pressure system the pressure at the center of which is ______.
A. the highest over the area B. the lowest over the area C. higher than 1013 HPA D. lower than 1013 HPA KEY: B低气压在航海天气报告中是气压系统中心气压最低的区域。
[206] A mark or place at which a vessel comes under obligatory entry, transit, or escopt procedure
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is know as ______.
A. Way point B. Receiving point C. Reporting point D. Closest point KEY: B接受点是一艘船舶进入，通过或护航的一处标志或地点。
[207]同上
[208]同上
[209] A MARK OR POSITION AT WHICH A VESSEL IS REQUIRED TO REPORT TO ESTABLISH ITS POSITION defines ______.
A. VTS point B. Way point C. Reference point D. Establishment KEY: B要求船舶报告位置的标志或位置被称为航路点。
[210] A master would be well advised to note a sea protest if ______. A. portions of his vessel’s cargo were illegally impounded B. longshoreman went on strike against the overtime
C. the vessel encountered heavy weather which might have caused some damages to her D. a wreck of fishing boat was located on the voyage
KEY: C如果船舶遭遇了恶劣天气并有可能引起损坏，建议船长提交一份海事声明。
[211] A mean sun is used as the reference for solar time for three reasons. Which reason is NOT a cause for use of a mean sun? ______.
A. The motion of the apparent sun is along the ecliptic. B. Measurement of time is along the celestial equator. C. The speed of the Earth’s revolution is not constant. D. There are variations in the Earth’s rotational speed.
KEY: B平太阳被作为太阳时的三个原因，哪个不是使用平太阳的原因？地球旋转速度不是定值。
[212] A mercurial barometer at sea is subject to rapid variations in height (pumping) due to the pitch and roll of the vessel. To avoid this error, measurements of atmospheric pressure at sea are usually measured with a(n) ______.
A. syphon barometer B. cistern barometer C. aneroid barometer D. fortin barometer
KEY: C由于船舶的纵倾和摇摆，在海上水银气压计受限于高度和速度变化，为避免这个错误，海上大气压的测量使用空盒气压计。
[213] A METHOD OF TOWING VESSELS THROUGH POLAR ICE BY MEANS OF
ICEBREAKING TUGS WITH A SPECIAL STERN NOTCH SUITED TO RECEIVE AND HOLD THE BOW OF THE VESSEL TO BE TOWED defines ______. A. Towing operations B. Rigid coupled towing C. Close coupled towing D. Hard coupled towing
KEY: C通过极地冰区用破冰拖轮拖带，破冰拖轮尾部有特殊的槽口来容纳和固定被拖船的船首，这被定义为牢固组合拖带。
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