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。
36
[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 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
37
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。
[214] A microbarograph is a precision instrument that provides
38
a ______.
A. charted record of atmospheric temperature over time B. charted record of atmospheric pressure over time
C. graphic record of combustible gases measured in an atmosphere
D. graphic record of vapor pressure from a flammable / combustible liquid
KEY: B微型气压计是一个提供一段时间内大气压图表记录的静谧仪器。 [215]同上
[216] A mooring line is described as being 6x24, 1-3/4 inch wire rope. What do the above numbers refer to ? ______.
A. Strands, yarns, circumference B. Strands, wires, diameter
C. Wires, yarns, diameter D. Strands, circumference, wires
KEY: B系泊缆绳被描述为6x24, 1-3/4英寸的钢丝绳。以上数字代表什么？股数、金属丝、直径。 [217] A mooring line leading 45°to keel, used to check forward or astern movement of a vessel, is called a
A. spring line B. warp line C. bow line D. breast line
KEY: A与龙骨成45°的系泊缆绳，作为制止船舶前后移动，被叫做倒缆。
[218] A mooring line that prevents a vessel from moving sideways away from the dock is a ___.
A. bow line B. breast line C. stern line D. spring line
KEY: B 防止船舶从码头倾向移动的系泊缆绳是横缆。
[219] A navigator fixing a vessel?s position by radar ______. A. should never use radar bearings
B. should only use radar bearings when the range exceeds the distance to the horizon
39
C.can use radar information from one object to fix the position D. must use information from targets forward of beam
KEY: C航海人员用雷达测定船位，可使用某一物标的雷达信息来定位。
[220] A negative metacentric height ______.
A. will always cause a vessel to capsize B. should always be immediately corrected
C. always results from off-center weights D. All of the above are correct
KEY: B负稳性高度应该被立即改正。
[221] A neutral equilibrium position for a vessel means that the metacenter is ______.
A. lower than the keel B. at the same height as the center of gravity
C. exactly at midships D. at the center of the waterplane area
KEY: B船舶的中性平衡状态是指船舶稳心与中心在相同高度。
[222] A new coil of nylon line should be opened by ______. A. pulling the end up through the eye of the coil B. taking a strain on both ends
C. uncoiling from the outside with the coil standing on end D. unreeling from a spool
KEY: D一卷心的尼龙绳通过线轴回卷才能解开。 [223] A partial deck in a hold is called a(n) ______. A. weather deck B. orlop deck C. shelter deck D. main deck KEY: B货舱里部分甲板称为下层甲板。
[224] A pattern according to which vessels and / or aircraft may conduct a co-ordinated search is a
A. Research pattern B. Research mode C. Search pattern D. Search and rescue mode
KEY: C船舶和航空器进行协调搜救的模式叫做搜寻模式。
40