单选题测者眼高为9m,物标高程为25m,则测者能见地平距离为()nmile。A6.27B10.45C16.72D17.67

单选题
测者眼高为9m,物标高程为25m,则测者能见地平距离为()nmile。
A

6.27

B

10.45

C

16.72

D

17.67


参考解析

解析: 暂无解析

相关考题:

单选题关于电位参考点的说法,以下说法错误的是()。A在同一电路中,参考电位点只能有一个B电路中可任意选取一点为参考点C参考电位点的电位值规定为“零”D为便于分析,通常把电路中电源的负极选为参考点

单选题What benefit is a weather bulletin to a mariner().AIt provides a legal reason to cancel a projected voyageBIt allows the mariner to make long term weather forecastsCIt is of little benefit since the weather changes frequently and rapidlyDIt gives the mariner time to prepare for weather changes

单选题对用于短时和重复短时工作制负载电缆,其实际负载电流()电缆的最大安全载流量。A等于B小于或等于C大于或等于D等于1.1~1.8倍

单选题活塞销表面有裂纹时应采用()处理。A修刮B光车C堆焊+光车D更换

问答题艉部悬伸体的作用是什么?

单选题倾斜试验应在平静的、风力不大于()级(最大不超过()级)的天气条件下进行。A1,2B2,3C1,3D2,4

单选题船舶后退中,正横前来风:().A风动力中心在重心之前,水动力中心在重心之后B风动力中心在重心之前,水动力中心在重心之前C风动力中心在重心之后,水动力中心在重心之后D风动力中心在重心之后,水动力中心在重心之前

单选题Voltage will always lead current in a/an ()Acapacitive circuitBinductive circuitCmagnetic circuitDresistive circuit

单选题会形成可爆混合气体、产生剧毒蒸气或对船舶有不可见腐蚀作用的物质应装载在()。A甲板上B舱内C首尖舱内D尾尖舱内

单选题为防止低速柴油机曲轴箱爆炸,燃油混入滑油中使滑油的闪点降低,对于HC-14达到()℃以下时即要换油。A100B160C180D130

单选题MHB货物的运输注意事项可在()中查找。AIMDG CodeBIMSBC CodeCCSS CodeDIGC Code

单选题活塞销表面裂纹应采用()检查。A观察法B射线探伤C磁粉探伤D超声波探伤

单选题The complete details of a crude oil washing system aboard your vessel,including the operating sequences and procedures,design characteristics,a description of the system,and required personnel will be found in the().AOil Transfer Procedures ManualBCrude Oil Washing Operations and Equipment ManualCCode of Federal RegulationsDCrude Oil Washing addendum to the Certificate of Inspection

单选题在ARQ方式中,主台收到副台的()信号,则发射识别字组.ACS1BCS3C校验和信号(CK)DCS4

单选题船舶前后锚灯采用()。A白色环照灯B红色环照灯C白色直射灯D红色直射灯

单选题If a four-stroke/cycle diesel engine is started by injecting air into the cylinder, the pistons receiving the charge of starting air must be()Aon the power strokeBon the exhaust strokeCat the end of the power strokeDat the start of the intake stroke

单选题三级以上离心泵各级能量转换装置常用()。A蜗壳B导轮CA或BDA和B

单选题组合式起重机在140°范围(干涉区)内设置相应极限开关目的是()A控制两吊臂的货物升高范围B控制两吊臂旋转不超出规定范围C控制“单吊”位时公用大转盘的旋转范围D当一台吊进入干涉区时另一台旋转不超过140°

单选题海面搜寻协调船根据任务、海区和船舶的具体情况,对搜索的具体要求做出的规定有()。 ①平行搜寻时,各船最初的航向通常应与遇险船的漂移方向一致; ②为实施平行搜寻,搜寻速度通常应取最慢船舶能开出的最高船速;以便让所有的船舶都能参加平行搜寻; ③目视搜寻时应按适合于救助船艘数的搜寻模式实施,平行搜寻模式的船间间隔可按本手册确定; ④能见度不良时,应减速、缩小间隔进行搜寻;无雷达或雷达有缺欠的船舶应配置在其他船舶的后面进行搜寻A①②③B①②④C①②③④D②③④

单选题理想气体放热过程,当温度不变时,其膨胀功W()。A大于0B小于0C等于0D大于0或小于0

单选题为提高GPS的定位精度,船用GPS导航仪一般要求选择二维定位功能,其原因是:()A可获得更小的精度几何因子B可获得更大的精度几何因子C可获得更好的位置线夹角D可获得更好的接受信号质量

单选题How does an icebreaker normally free a ship which has become beset while navigating independently?()ABy backing down the track and cutting out ice on either bowBBy approaching from the stern and crossing ahead at an angle of 20°to 30°to the beset ship's courseCBy overtaking the beset ship,running ahead and then backing down the track to the beset vesselDBy approaching the vessel from astern and towing the beset vessel stern first

单选题判断船舶是否是构成“从事捕鱼的船舶”应当考虑()。 ①正在从事捕鱼作业; ②所使用的渔具使其操纵性能受到限制A①B②C①②都对D①②都不对

单选题The piston rings if found worn out () and supplied by shipchandler.Amust replaceBmust to be equippedChas to be repairedDhave to be renewed

单选题Which of the following will be desirable properties of refrigerant?() (1) non-explosive (2) non-corrosive (3) that it doesn’t react with lubricantsA(1), (2) and (3)B(1) and (2)C(1) and (3)D(2) and (3)

单选题()拓扑结构具有如下特点。 ①结构简单、灵活,易于扩展;共享能力强,便于广播式传输。 ②网络响应速度快,但负荷重时性能迅速下降;局部站点故障不影响整体,可靠性较高。但是,总线出现故障,则将影响整个网络。 ③易于安装,费用低。A环型结构B星型结构C树型结构D总线型结构

单选题Where is the most probable location of the remote shutdown station for cargo pumps on a tank barge carrying oil().AThe loading dockBThe midpoint of the bargeCWithin 25 feet of the pump engineDAbove the forward rake end

单选题微机I/O口不具备的功能是()。A响应CPU发出的中断请求B进行模拟量和数字量的转换C通讯D地址译码