08.4 狭水道、冰区与运河航行目录8[2301]Your vessel is approaching a bend. You hear a prolonged blast from around the bend. You should ______.A. back your enginesB. stop your engines and driftC. answer with one prolonged blastD. sound the danger signalKEY: C你船正在接近一个湾头。
在湾头附近你听到一长声。
你应回答一长声。
同原题库0002[2302]The principal danger from ice collecting on a vessel is the______.A. decrease in capabilities of radarB. decrease in displacementC. adverse effect on trimD. loss of stabilityKEY: D船上结冰的最大危险是稳性损失。
[2303]Which will most likely occur when entering shallow water?A. Rudder action will become more effective.B. The vessel's list will change.C. The vessel's trim will change.D. An increase in speed will occur.KEY: C当船舶进入浅水时，什么将最可能发生？船舶的吃水差将变化[2304]You are on an ice-reinforced vessel about to enter pack ice. You should ______.A. enter the pack on the windward side where there is a well defined ice edge---边缘明显的上风一侧B. trim to an even keel or slightly down by the bow to take maximum benefit of the ice reinforcementC. take maximum advantage of coastal leads caused by offshore windsD. look for areas of rotten ice and enter perpendicular to the ice edgeKEY: D你所在的冰区加强船将要进入浮冰群。
你应寻找蜂窝冰的区域并垂直于冰的边缘进入。
[2305]A flashing green light displayed at a single lock means that the lock is ______.A. ready for entranceB. ready for entrance，but gates cannot be closed completelyC. being made ready for entranceD. not ready for entranceKEY: A单一船闸上显示的闪绿灯光意味着船闸已经准备好进入。
[2306]A flashing red light displayed at a single lock means that the lock ______.A. is ready to use but vessels must stand clearB. is ready to use and vessels may approachC. cannot be made ready immediately and vessels shall stand clearD. cannot be made ready immediately but vessels may approachKEY: C单一船闸上显示的闪红灯光意味着船闸不能立即准备好并且船舶应让开。
[2307]A SEA ROOM TO BE KEPT FOR SAFETY AROUND A VESSEL，ROCK，PLA TFORM，ETC.，OR THE PLACE ASSIGNED TO A VESSEL WHEN ANCHORED OR LYING ALONGSIDE A PIER，ETC means ______.A. PortB. Commercial areaC. BerthD. RoadsteadKEY: C为船舶，岩石，平台等或当船舶锚泊或靠码头时指定给船舶的宽广海面意思是停泊处。
[2308]A situation has occurred where it becomes necessary for you to be towed. What action should be taken to prevent your vessel from yawing?同原题库1649A. Shift weight to the bowB. Shift weight to the center of the boatC. Shift weight to the sternD. Throw excess weight overboardKEY: C发生一种情形致使你船有被拖带的需要。
你应采取什么措施以防止艏摇？移动重量到船艉[2309]A stream of water immediately surrounding a moving vessel's hull，flowing in the same direction as the vessel is known as ______.同原题库3526A. directional current—方向流B. forward current—正向电流C. propeller current—推进器尾流D. wake currentKEY: D一股直接围绕于运动的船体，流向与船的运动方向一致的水流被称为尾流（伴流，迹流）。
[2310]A stretch where the channel changes from one side of the river to the other is called a ______.A. crossingB. transitC. transferD. passingKEY: A航道自河的一边改变到另一边的一段距离叫做横越。
[2311]A strong back refers to a ______. 同原题库2608A. bar securing a cargo portB. centerline vertical bulkhead---垂直舱壁中心线C. deep beam---加强横梁D. spanner stay---两吊杆柱之间的横牵缆KEY: A强力背板指的是加固舷侧装货门的材料。
[2312]A tide is called diurnal when ______. 同原题库3520A. only one high and one low water occur during a lunar dayB. the high tide is higher and the low tide is lower than usual—高低潮高比平常的更高和更低C. the high tide and low tide are exactly six hours apart—高低潮之间精确相差6个小时D. two high tides occur during a lunar day—在一个太阴日内发生两个高潮KEY: A在一个太阴日（约24时50分太阳时）内仅发生一次高潮和一次低潮的潮汐叫全日潮。
[2313]A tow that veers to the side on the end of the towline is said to ______.A. yaw---偏航，（船）首摇B. surge---（船舶）纵荡C. sway---摇动，横荡D. swing---摇摆，摆动回转KEY: A在拖缆末端转向一侧的拖带表达为偏航。
[2314]A towboat has the same draft as the barges it is pushing ahead. If the distance from the stern of the towboat to the head of the tow is 260m，where is the approximate location of the pivot point of the unit?A. At the head of the towB. 75m from the head of the towC. 120m from the head of the towD. 180m from the head of the towKEY: B一艘拖轮与由其顶推的驳船具有相同的吃水。
从拖轮尾部到拖带船的首部的距离为260米，则该单元的旋转点大约在什么位置？距拖带首部75米处（距船首1/3到1/4船长处）[2315]A towing vessel should be on the crest of a wave at the same time as its tow and in the trough at the same time. The term used to describe this is ______. xxhA. tow strainB. catenary lengthC. being in step---齐步走，步调一致地D. Williamson's TowKEY: C在拖带处于浪谷的同时拖轮将处于波浪的浪尖。
用于描述的术语为？？？[2316]A tug's horsepower available at the shaft is ______.A. indicated horsepower---额定马力，指示马力B. brake horsepower---制动功率C. dynamic horsepower---净实马力，输出功率D. net horsepower---净马力，有效功率KEY: B在拖轮传动轴上可利用的功率是制动功率。