航海英语1002第二节 船体结构_航海英语船体结构

航海英语1002第二节 船体结构由刀豆文库小编整理，希望给你工作、学习、生活带来方便，猜你可能喜欢“航海英语船体结构”。

第二节 船体结构

0287.The upward slope of a veels bottom from the keel to the bilge is called ___D___．

船底从龙骨到舭部向上的斜坡叫（）

A．Camber 梁拱B．Sheer 舷弧C．Rake倾角D．Rise of bottom 底部升高

0995.____D__ is not a longitudinal structural member．

下列哪一项不是纵向强度结构（）

A．sideshell 船壳边板B．bottom shell plating 船壳底板C．inner bottom plating 内底板 D．transverse bulkhead 横舱壁

0996.____D__ is not a static load．

下列哪种情况不是稳定装载状态（）

A．Actual weight of the ship's structure，outfitting，equipment and machinery 船舶结构、舾装、设备及机械等的实际重量

B．Ballast load（weight）压载C．Cargo load 载货

D．Slamming（猛撞）and sloshing load（泼溅）自由液面

0998.A carling is used aboard ship ___B___．[49] 在船上纵梁有什么用途（）

A．As a connecting strap between the butted（使接合）ends of plating 用于连接壳板的铁条

B．To stiffen areas under points of great stre between beams 用来加强受力的横梁之间的区域

C．To prevent the anchor from fouling when the brake is released 当松开刹车后，用来防止锚链绞缠

D．To provide an extra heavy fitting in a heavy lift cargo rig 在重吊吊吊杆中增加承重构件

0999.A continuous watertight bulkhead is normally also a（n）___A___．[71] 连续的水密舱壁一般同时也是（）

A．Structural bulkhead 结构舱壁B．Exterior bulkhead 外壳舱臂 C．Centerline bulkhead 船中央舱臂D．Joiner bulkhead 连接舱壁

1000.A deck fitting，used to secure line or wire rope，consisting of a single body with two protruding horns is called a ____D__．[77] 甲板上由两个突出的角状结构组成的，用来挽、系绳索或缆绳的设备叫（）A．Bitt单柱系缆桩B．Bollard系缆桩C．Capstan绞盘 D．Cleat 羊角

1002.A set of interior steps on a ship leading up to a deck from below is known as __A___．[182] 在船体内部，从下层甲板到上层甲板之间的台阶叫做（）

A．A companion way升降口通道B．Tween-decks 双层甲板C．Stairs 楼梯 D．Any of the above are acceptable 以上均可 1003.A term applied to the bottom shell plating in a double-bottom ship is ___B___．

在双层底船舶中，用来表示外部船壳底板的单词是（）

A．bottom floor 底层B．outer bottom 外底板C．shea(E)r plating 舷顶列板 D．tank top 内底板

1005.Bilge keels are fitted on ships to ___D___．[426] 船上舭龙骨起什么作用（）

A．Aist in drydock alignment 上坞时便于排墩 B．Improve the veel's stability 提高船舶稳性

C．Protect the veel from slamming against piers 靠泊时防止船体与码头碰撞 D．Reduce the rolling of the veel 减少船舶横摇

1007.Compared to internal structural plating，the exterior hull plating on a veel is usually ____A__．[467] 与船舶内部结构相比，外部船壳板一般（）

A．stronger 强度更大B．thinner 更薄C．more corrosion resistant 更耐腐蚀 D．a lower grade steel 所用钢材的等级较低

1008.Compared to internal structural plating，the exterior hull plating on a ship is usually ____A__．

A．stronger B．thinner C．more corrosion resistant D．a lower grade steel

1009.Deck beams on a veel are generally spaced at equal intervals and run __C____．

船上甲板横梁一般等间距（）排列

A．longitudinally 纵向B．vertically 垂向C．transversely 横向D．intermittently间歇地

1010.Deck beams perform ___C___ of the following functions in the hull structure of a veel．① They transfer deck loads to the frames；② They help to maintain the shape of the hull．

在船舶结构中，甲板起下列哪些作用①把甲板承重转移到肋骨上②有助于保持船体形状 A．① only． B．② only． C．Both ① and ② D．Neither ① nor ②

1011.Floors aboard ship are __B____． 船上肋板是（）A．also called decks 又叫甲板

B．vertical transverse plates connecting the vertical keel with the margin plates 垂直横向排列，用来联接垂向龙骨与边板的钢板

C．large beams fitted in various parts of the veel for additional strength 安装在船体各个部位起加强作用的横梁

D．found in paenger and berthing spaces only 只在客船及泊位上可见到

1012.Floors aboard ship are ____A__．[528] 船上肋板是（）

A．frames to which the tank top and bottom shell are fastened on a double bottomed ship 在双层底船上，用来连接船壳外板与内底板的骨架

B．transverse members of the ships frame which support the decks 支撑甲板的横向船舶构件 C．longitudinal beams in the extreme bottom of a ship from which the ship's ribs start 在船壳最外面的纵向构件，用于铺设船体肋骨

D．longitudinal angle bars fastened to a surface for strength 附着在（钢板）表面起加强作用的角钢

1013.For existing ships，___D___ is not an improvement to safety．

对现有船舶来说，（）不是安全提高的表现

A．the reinforcement of the aft transverse watertight bulkhead 加强船舶艉部横向舱壁 B．the double bottom structure in way of the foremost cargo hold 有接近艏部的货舱下增加双层底结构 C．the introduction of a more rigorous survey regime and greater attention to operating procedures 引入更为严厉的船舶检验机制，更加小心操作

D．introduction of new and improved designs 采用新的、先进的设计

1014.Forecastle deck is located in the ship's ___A___．

首楼在船上的什么位置（）

A．Bow stem 船头B．Stern 船尾C．Portside 左舷 D．Starboard side 右舷

1015.Frames to which the tank top and bottom shell are fastened are called ___A___．[553] 用来连接内底板与外板的船体骨架叫（）

A．floors 肋板B．intercostals 断续材、肋间部C．stringers纵梁;纵桁

D．tank top supports 内底板支架

1016.Holes in the bulwark，which allow deck water to drain into the sea，are ___C___．[586] 在舷墙上，为方便甲板水排入海中而开的孔叫（）

A．Doggers 荷兰双桅渔船B．Fidleys锅炉舱顶棚C．Freeing ports排水孔

D．Swash ports 止荡孔

1017.If the weights are moved away from the midship section，___A___ will happen on board．

如果从船舶中部移走重量，会发生（）

A．hogging 中拱B．sagging 中垂C．stiff 稳性过大D．tender 稳性太小

1018.In a transversely framed ship，the transverse frames are supported by all of the following EXCEPT ____D__．[682] 在一艘横骨架式的船上，下列哪一项不起支撑船舶横向构件的作用（）

A．Girders 纵梁B．Longitudinals 纵骨C．Side stringers 边纵桁D．Web plates 宽板肋骨

1019.In heavy weather you notice buckling（弯曲;鼓起;褶皱）in the midships deck plating of your veel．To relieve the strain you could ___D___．

恶劣天气中，你发现船体中部向上鼓起，为减少甲板拉力，你应（）

A．pump fuel oil from midships to the ends of the veel 把燃油从中部驳到船体首尾 B．reduce speed 减速航行

C．take a course which most eases the veel 采用最适合船舶的航向航行 D．All of the above 全是

1020.In veel construction，a greater number of watertight bulkheads results in __C____．[747] 船体结构中，如果船舶水密舱壁的数量增加，会产生什么后果（）A．increased capacity to set flooding boundaries 增加船舶抗沉性 B．decreased capacity to set flooding boundaries 减少船舶抗沉性 C．reduced compartmentation 减少船舶舱容 D．greater deck load capacity 增加甲板载荷

1021.In veel construction，beams are transverse girders which provide support to_C____．[749] 船体结构中，横梁是用来支撑（）的横向构件

A．Bulkheads 舱壁B．Deckhouse structures 甲板桅房C．Decks 甲板 D．Vertical frames 垂向骨架

1022.In veel construction，the garboard strake is ___A___．[750] 船舶结构中，龙骨翼板列（）

A．Located next to and parallel to the keel 安放在龙骨旁边并与龙骨平行

B．Located next to and parallel to the gunwale 安放在甲板边缘附近并与之平行

C．Another term for the bilge keel 又叫舭龙骨 D．Another term for the rub rail又叫扶手栏杆

龙骨翼板：方龙骨两边的左、右各一列纵向外板。

1023.It is poible，and sometimes neceary，to strengthen the deck of a veel for carriage of deck cargo by __D____．[769] 有时，为了在甲板装货，有可能或必须通过（）来加强甲板承荷能力 A．placing bunker on the deck 在甲板上堆放燃煤

B．building a stage on which to place the cargo 在甲板上搭个台，用来装甲板货 C．welding steel feet to the deck，on which the cargo is placed 在甲板上焊一些支架，用来装甲板货

D．erecting vertical pillars under the deck to support the cargo 在甲板下立一些垂直的柱子撑住甲板货

1024.Limber（污水道）is a term aociated with _B_____．[796] 污水道是与（）有关的单词

A．Emergency gear应急设备 B．Drainage 排水C．Deck cargo storage 甲板货储藏 D．Securing gear 绑扎设备

1025.On a veel，the keel is the primary strength member of the lower hull form in which direction ____C____．

船舶上，龙骨是主要的（）强度结构

A．Transverse 横向B．Diagonal 斜向C．Longitudinal 纵向D．Vertical 垂向

1026.On board a bulk carrier，__A____．

散货船上（）A．harbour SWSF > seagoing SWSF，harbour SWBM > seagoing SWBM B．harbour SWSF seagoing SWSF，harbour SWBM seagoing SWBM SWSF：safe working sheer force（许用）安全剪力矩 SWBM：safe working bending moment（许用）安全弯矩

1027.One function of a bulwark is to ___A___．[875] 舷墙的作用之一是（）

A．Help keep the deck dry 保持甲板干燥

B．Prevent stre concentrations on the stringer plate 减少纵桁的应力集中 C．Protect against twisting forces exerted on the frame of the veel 保护船体免因受到扭矩而受损

D．Reinforce the side stringers 用于加强边纵桁

1028.Pollution regulations require that each scupper in an enclosed deck area have a __D____．

根据防污规则要求，封闭甲板区域内的每个排水口必须有（）A．Wooden plug木头塞子 B．Soft rubber plug 软橡胶塞子 C．Two-piece soft patch两件一套的软贴片 D．Mechanical means of closing 机械关闭装置

1030.Regulations define the bulkhead deck as ___B___．（subdivision and stability regulations）

分舱及稳性规则把舱壁甲板定义为（）

A．any deck extending from stem to stern 任何从船头延伸至船尾的甲板 B．the uppermost deck to which transverse watertight bulkheads extend 横向水密舱壁达到的最上一层甲板

C．the lowermost deck to which transverse watertight bulkheads extend 横向水密舱壁到达的最下一层甲板

D．the uppermost complete deck 最上一层连续甲板

1031.Reinforcing frames attached to a bulkhead on a veel are called ____C__．

船舶上焊在舱壁上用来加强舱壁强度的加强构件叫（）

A．side longitudinals 边纵骨B．intercostals 断续材C．stiffeners 加强筋D．brackets 撑架

1035.The Captain's accommodation comprising rooms certified for his exclusive use may be ___A___ in the measurement of veel's tonnage．

在进行船舶吨位丈量时，船舶房间（包括所有指定由他单独使用的各个房间）可以（）A．Deducted 扣除B．Added 增加C．Forfeited 没收、失去D．Used 使用

1037.The extension of the after part of the keel in a single-screw veel upon which the stern post rests is called the __C____．

船舶上，龙骨后部延伸出的用来安放尾柱的构件叫做（）

A．bo圆形突出物B．knuckle转向节C．skeg龙骨的支柱D．strut支柱 1038.The hull is divided up into a number of watertight compartments by ___B___．

船体被（）分隔成一定数量的水密舱室

A．inner bottom plating and longitudinals 内底板及纵骨

B．decks and bulkheads 甲板及舱壁C．double bottom girders 双层底桁架

D．topside and hopper tank sloping plating and longitudinals 内底板、低边柜斜坡及纵骨

1039.The locker will ___A___ as long as your ship is here．

只要你船还在这里，储藏室就应（）

A．Be kept sealed保持关闭B．Be released from being sealed 把关闭的都打开 C．Be kept signed 保持可见D．Be released from being signed 把可见到的都打开

1043.The piping that routes an oil cargo from the manifold to underdeck pipelines is known as a ___B___．[1136] 从管路集成器那把货油接到甲板下的管路里去的支管叫（）

A．Cargo fill 装货管B．Line drop 下舱管C．Transfer 转驳管D．Branch line分支管

1044.The primary barrier of a bulk carrier is formed by ___D___．

散装船的第一道防水构造是由（）组成的A．the single skin side shell and the inner bottom 单壳船壳板及内底板 B．deck strips，hatch covers and coamings甲板带、舱盖及舱口围

C．the vertically corrugated transverse watertight bulkheads 垂向折弯的水密横舱壁

D．the single skin side shell between topside and hopper tanks，and the cro deck strips，hatch covers and coamings 高边柜及低边柜之间的单壳船壳板、横向甲板带、舱盖及舱口围

1046.The section of each end of a barge which is heavily reinforced to take the preure of pushing is called the ___A___．[1186] 驳船首尾两端特别加强的，用来承受顶推时所受的压力的构件叫做（）

A．Headlog 碰垫B．Towhead沙洲C．Collision bulkhead 防撞舱壁D．Bullnose 球鼻首

1047.The strake on each side of the keel is called a ___D___．

在龙骨两侧的列板叫（）

A．Sheer strake舷侧厚板列B．Gatewood strake C．Insulation（隔离）strake D．Garboard strake龙骨翼板列

1048.The term strake is used in reference to ___C___．

列板这一词组用来表示（）

A．rudder mountings 舵的托架B．anchor gear 锚设备C．hull plating 船壳板 D．veel framing 船体骨架

1050.The Veel's cargo holds are properly fitted with ___A____ in way of hatches．

船舶的货舱沿舱口安装了适当的（）

A．Floor-ceiling舱顶板B．Battens 压条板C．Covers 覆盖物 D．Hard-wood boards 硬木板 1051.To determine the weight capacity of a deck in a cargo hold，you would refer to the __B____．[1268] 为了确定甲板最大载货能力，你应查阅（）

A．Deadweight scale总载重量表尺B．Deck capacity plan 甲板装载能力平面图 C．Cubic capacity tables 体积容量表D．General arrangement plan 总布置图

1052.Tonnage openings must be closed by means of ____C__．

吨位开口应由什么封闭（）

A．Pre board（绝缘）压榨纸板B．Steel hatch boards 钢制舱口板 C．Steel plates 钢板D．Wooden hatch boards 木制舱口板

1053.What can cause a lack of oxygen in a chain locker ____D____．

什么会导致锚链舱缺氧（）

A．Absorption 吸收作用B．Osmosis渗透作用C．Evaporation蒸发作用 D．Oxidation氧化作用

1054.What is a cofferdam ___C_____．[1348] 干隔舱是（）

A．Tube fitted to an ullage hole安装在容器内液面以上的空间内的管子 B．Area the product is loaded into 用来装入货物的区域

C．Void or empty space separating two tanks 用来分隔两个液货舱的空舱

D．Opening in the deck used for cleaning a tank 甲板上的开口，便于冲冼甲板的水流出

1055.What type of stern tube bearing has the least friction _____A___．

哪一种尾部管形轴承磨擦力最小（）

A．Oil-lubricated bearings 用油润滑的轴承B．Lignum vitae(热带产)愈疮树 C．Hard rubber 硬橡胶D．Bronze bushings青铜轴衬

1056.When lowering manropes alongside a stage rigged over the side of a veel，they should be allowed to trail in the water ___C___．

当在舷外安装架板，应沿船舷放下一根救生绳，该救生绳应松到水面上让绳头顺流而漂，目的是（）

A．to easily remove the kinks that form in the lines 如果绳子打结了，可轻易解开 B．to allow the seamen on the stage to know the direction and strength of the current 可以使架板上的船员知道流的方向及强度

C．to provide the seaman something to hold onto if he or she falls from the stage into the water 如果船员从架板上落水，他可以抓住绳子

D．only for short periods of time since they will become waterlogged and be very heavy to pull up 只能放一小段时间，因为绳子很快会泡水变重，无法拉上来

1057.When using the term limber system one is referring to a ___B___．[1528] 当提到“排污系统”这一词组时，一般指的是（）

A．Cleaning system 清洗系统B．Drainage system 排水系统

C．Strengthening system 加固系统D．Weight reduction system 减重系统

1058.Which arrangement of shell plating is used most in modern shipbuilding ____B____．

现代造船业中，最经常用到的船壳板的成型方式是（）

A．Clinker熔铸B．Flush 冲压C．In-and-Out 进进出出D．Joggled啮合

1059.Which of the following is a characteristic of a Ro-Ro veel ____C____．[1612] 下列哪一项是滚装船的特点（）

A．Paenger tours available upon docking 靠舶后为乘客提供旅游服务 B．Long port stays neceary to secure vehicles 用绑扎汽车，靠岸时间长 C．Short in port turnaround times 在港周转时间短

D．Heavy vehicles only require lightweight securing equipment 重件货也只需轻型绑扎设备即可

1061.Which space cannot be deducted from gro tonnage when calculating net tonnage ____B____．

在计算净吨位时，哪一部分的容积不能从总吨位中扣除（）

A．Crew meroom 船员餐厅B．Forepeak ballast tank 首尖舱压载舱 C．Master's cabin 船长房间D．Chain locker 锚链舱

1062.Which space（s）is（are）deducted from gro tonnage to derive net tonnage _A_____．

下列哪一部分容积可从总吨位中扣除以得到净吨位（）

A．Boatswain's stores 水手长的水手长的储物间储物间B．Companions and booby hatches 升降舱口

C．Paenger spaces 载客舱室 D．All of the above 以上全是

1063.Which space（s）is（are）deducted from gro tonnage to derive net tonnage ___D___．[1634] 下列哪一部分容积可以从总吨位中扣除以得到净吨位（）

A．Galley fitted with range or oven配有煤气灶及铁锅的厨房B．Open structures 开口结构 C．Paenger spaces 载客舱室D．Boatswain's stores 水手长的个人储物间

1064.Which statement about the hospital space on a cargo ship is TRUE ___D_____．

下列有关货船上医院的描述哪一句正确（）

A．The hospital may be used for disciplinary confinement if it is not being used for treatment 如果没有病人正接受治疗，医院可作为禁闭室

B．The hospital space must have both a bathtub and shower 医院内应有浴缸和喷淋设备

C．A hospital is required on all veels with a crew of 12 or more if it makes overnight voyages 如果船上船员人数超过12人，且航程超过一个晚上，必须配有医院

D．If a ship has a crew of forty-five who do not have their own room，the hospital must have four berths 如果船上有45个船员没有个人房间，医院应有4个铺位

1065.Which term refers to a transverse curvature of the deck ____B____．

下列哪一个词组用来表示甲板的横向弯曲（）

A．Deadrise 端部上翘B．Camber 梁拱C．Freeboard 干舷D．Flare(船舷)外倾

1066.While cranking（用曲柄启动或旋转）out a quadrantal davit，slippage of the quadrant due to exceive wear or failure of the teeth in the quadrant will cause the ___A___．

当旋转曲柄把直角弯曲的吊艇架放下来时，如果齿轮间的轮齿因过分磨损而打滑，将会导致（）

A．Davit arm to pivot on the traveling nut and the head to fall outboard 吊艇架会顺着移动螺母转动，吊艇架头部将落向舷外

B．Traveling nut to lock up in place on the worm gear 吊艇架移动螺母会卡在磨损的轮齿的位置上

C．Limit switch to engage and hold the traveling nut in position 限位开关开始工作并把移动螺母固定住 D．Winch brake to lock in position and prevent lowering the boat 绞车的刹车会刹住，使艇不会滑下

1067.Why is it neceary to extend ventilators of gasoline powered veels to the bilges _____B___．[1727] 为什么汽油机船的通风管应伸到污水井里（）

A．To keep them dry，and thus easier to clean 为了保持干燥，因而更易清洁 B．To remove fuel vapors which are heavier than air 为了清除比空气重的油汽 C．To provide adequate air to the engines 为主机提供适量的空气 D．To cool the machinery areas 冷却机器处所

1071.A deck beam does NOT ___B___．[76] 甲板横梁不起下列哪一项作用（）

A．act as a beam to support vertical deck loads 作为支持垂向甲板货的横梁 B．leen the longitudinal stiffne of the veel 减轻船舶纵向的刚性

C．act as a tie to keep the sides of the ship in place 连接船舶边板，使之不变形 D．act as a web to prevent plate wrinkling due to twisting action on the veel 作为一种框架，防止因船舶扭转而造成的船壳板扭曲变形

1089.Any hatch beam or pontoon left in place next to an open hatch section being worked shall be _C_____ or otherwise secured，so that it cannot be accidentally displaced．

所有放置于起正在进行作业的开着的货舱口边的舱盖横梁或箱形舱口盖应（）或绑扎固定，以免意外移动。

A．tommed down B．braced 支撑;加固C．locked 锁定，固定D．chopped 砍,劈,剁

1090.Because of ___D___，air ducts used aboard ships are often very small and have sharp curves and bends． 由于（），船上的空气管经常很小，而且曲度很大

A．high level 液位高B．overflow spaces 防溢空档C．cargo tank 液货舱 D．space constraints 受空间限制

1101.In nautical terminology a dog is a ___B___． 航海词汇中，“dog” 是什么意思

A．Crow bar撬棍B．Device to force a water tight door against the frame 用来顶住水密门使之紧贴在架构上的器具（压盖螺栓，顶门杠，水密门板闩把手）C．Heavy steel beam 厚钢梁D．Wedge楔子

1106.On a ship，a door that is required to be marked KEEP CLOSED is designed to ___D___．[858]船舶上，标有“保持关闭”字样的门是被设计用来（）A．prevent the paage of flammable gases 防止可燃气体通过 B．prevent the paage of poisonous vapors防止有毒气体通过 C．delay the spread of heat and flames 延缓热量及火焰通过 D．maintain watertight integrity 保持水密性

1109.Strongbacks（强力背材,装货舷门闩,活动舱盖梁）unshipped in an intermediate deck shall be secured so that they cannot be __B____ into a lower compartment．

在中层甲板上已经卸下的活动舱盖梁，应绑扎固定好，以免（）进入下层舱室中去 A．moved 移动B．tipped or dragged倾倒或被拉动C．removed 移除D．put 放

1110.Strongbacks unshipped in an intermediate deck shall not be placed closer than 15.24 cm from ___A___．

在中层甲板上已经卸下的活动舱盖梁，应放置在靠近（）附近不超过15.24 cm处 A．the coaming 舱口围B．hatch way仓口位C．fore bulkhead 前舱壁 D．aft bulkhead 后舱壁

1127.The permanent dunnage attached to the frames of the ship that aids in ventilation is（are）the ____D__．[1134] 船舶上永久性地固定在骨架上以利通风的垫舱板叫做（）

A．hatch boards 舱口板B．tank top 内底板、舱底C．hatch beams 舱口横梁 D．sweat battens 防汗湿压条

1129.The purpose of a bilge well is to __B____．[1149] 污水井的作用是（）

A．Afford acce to the shell through the double bottoms 在双层底与船壳板之间提供通道 B．Collect water to be pumped out 收集污水，以便抽出 C．Provide acce for the pneumercator

D．Provide a base line for sounding measurements 作为测量舱内水深基线

1130.The roller hatch beam at the edge of the open section of the hatch shall be ___C___ so that it cannot be moved toward the open section．

应把位于货口边上的舱口滚动梁（）以免它们移动到货舱口处

A．braced 支撑;加固B．chopped砍,劈,剁C．lashed or pinned back 绑扎住或用插销固定D．locked 锁定，固定

1136.Ultrasonic testing is used to determine the thickne of a veel's shell plating and to ___B___．[1293] 超声波检测用来检验船壳板厚度及（）

A．Provide tailshaft clearances 提供尾轴间隙 B．Test welds for subsurface defects 检查焊缝内部缺陷

C．Check the wear of the rudder carrier bearing 检查舵承磨损情况 D．Test the links of the anchor cables while being ranged 检查锚链链环

1143.What is the purpose of limber holes ____D____．[1398] 舭部流水孔的作用是（）

A．To allow for air circulation 使空气流通

B．To allow for stre and strain in rough waters 在波浪大时，减轻船体压力与拉力 C．To allow water in the boat to drain overboard 便于艇中的水排出艇外

D．To allow water in the bilge to get to the boat drain 便于舭部的水流到污水井

1149.When stowed on steel decks，the strongbacks and pontoons shall be secured with ___A___．

A．Dunnage or other suitable material B．other strongbacks C．hatch covers D．other pontoons

1367.A partial deck in a hold is called a（n）__B____．[150] 在船舱中的半全通甲板叫做（）A．Weather deck 露天甲板B．Orlop deck最下层甲板C．Shelter deck 遮蔽甲板D．Main deck 主甲板

1517.A well in the uppermost deck of a shelter deck veel which has only a temporary means of closing for the purpose of gaining an exemption from tonnage measurement is called a（n）__D____．

在遮蔽甲板的最高处的开口（该开口只是临时关闭，目的是为了在吨位丈量时得到减免空间）叫做（）

A．Exemption space 减免空间B．Tonnage deck 吨位甲板C．Cofferdam 隔离空舱 D．Tonnage opening 吨位开口

1526.Kort nozzles are installed around the propellers of some veels to __A____．[783] 在一些船舶的螺旋桨上装有导流管，其目的是（）A．Increase the thrust of the propeller 增加螺旋桨推力

B．Protect the propeller from striking sawyers 防止螺旋桨撞到

C．Prevent the propeller from striking barges towed on the ship 防止螺旋桨撞到拖带的驳船 D．Prevent the propeller from touching bottom in low water 防止螺旋桨在浅水中触底