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出自:海船船员证
在GravinerMark-5型油雾浓度探测器中,单片机计算偏差浓度时所用的平均浓度值是一个()。
A:事先设定好的值
B:装置开始工作时调定的值
C:不断更新的值
D:工作一段时间后重新调整的值
下列
不属于
恒磁通的电器()。
A:交流电压继电器
B:交流接触器
C:交流电流继电器
D:电磁式继电器
A feed pump for an auxiliary boiler might lose suction if the ().
A:boiler water level is low
B:feedwater is too hot
C:boiler steam demand is low
D:feedwater is too cold
你轮由我国港口出发经苏伊士运河赴俄罗斯沿岸港口,途中经过的排放船舶垃圾的特殊区域有()I、波罗的海;II、英吉利海海峡;III、红海和地中海;IV、北海
A:I~IV
B:II~IV
C:I、II、IV
D:I、III、IV
The sub-multiple prefix “nano” (n) means ().
A:thousandth (10 to the-3rd power)
B:millionth (10 to the-6th power)
C:billionth (10 to the-9th power)
D:trillionth (10 to the-12th power)
根据S0LAS公约的要求,下列有关船长发送危险通报的提法正确的是()。 ①应向附近各船发送; ②应向能与之通信的最近岸上主管当局发送; ③可用《国际信号码》发送; ④最好用船员的工作语言。
A:①~④
B:①~③
C:①③④
D:②③④
The holding power of an anchor increases when the().
A:amount of chain lying along the bottom increases
B:length of the catenary is reduced
C:mooring line tension is increased
D:amount of chain lying along the bottom decreases
设A在北半球,B在南半球,从A到B的恒向线航向为230°,则A到B的大圆始航向为()。
A:大于230°
B:小于230°
C:等于230°
D:以上均有可能
齿轮间隙测量方法有,()、压纸法、()、也可以用百分表来测量。
高速船在深水中航行中,在低速时,其船体沉浮和纵倾的情况为:().
A:船体下沉且尾倾
B:船体下沉且首倾
C:船体上浮且首倾
D:船体上浮且尾倾
货油泵一般采用()方法进行流量调节。
A:节流
B:回流
C:变速
D:间断运转
在东北风天气航向135°的帆船甲看到左舷角30°乙船显示一盏绿舷灯,有时可见红、绿两盏舷灯同时显示,且有碰撞危险,按国际避碰规则:()
A:乙船右舷受风,甲船应给乙船让路;
B:乙船处于上风,乙船应给甲船让路;
C:乙船左舷受风,乙船应给甲船让路;
D:甲船无法断定乙船哪舷受风,等待乙船让路。
The Safety Radio Certificate for the Cargo Ship is issued().
A:by the Radiotelegraphy Authority of a country
B:in accordance with the Government Regulations
C:by complying with the Provisions of the National Conventions
D:under the Provisions of the SOLAS Convention
铜棒分别插入浓度不同的硫酸铜溶液中,浓硫酸铜溶液中的棒端电极电位较()为()极。
A:低;阳
B:低;阴
C:高;阳
D:高;阴
对中国籍国际航行船舶实施安全检查后,检查人员应()。
A:在《船旗国监督检查记录簿》内填写检查记录
B:签发《船旗国监督检查通知书》注明所查项目、发现的缺陷及处理意见
C:签发《港口国监督检查报告》并视情况将其副本交船旗国主管机关
D:A和B
According to the ship emergency plan, when average accident happened and the captain made the decision to withdraw from the engine room before leaving the engine room, the wrong operation is that ()
A:the chief engineer leaves the engineer room with the engine room log book at first
B:releasing compressed air in the air receiver and closing the watertight door
C:stopping all the running machineries and electric devices
D:closing the quick-closing valves of all the oil tanks, stopping the boiler and releasing gas
During counterflooding to correct a severe list aggravated by an off-center load,your vessel suddenly takes a list or trim to the opposite side. You should().
A:continue counterflooding in the same direction
B:continue counterflooding,but in the opposite direction
C:immediately stop counterflooding
D:deballast from the low side
地球椭圆子午线上纬度1ˊ弧长()。
A:在地球两极为最短
B:在地球赤道为最短
C:在地球赤道为最长
D:在纬度45°为最长
装配工作可以采用调节或移动某一个特殊的零件来调整()
A:零件的配合
B:装配尺寸
C:装配间隙
D:机器尺寸
根据联合国海洋法公约,沿海国对在公海上发生船舶油污事件,如有根据地预计到将会对其海域或有关利益产生严重和紧迫的油污危险或油污威胁,有权采取必要的防止、减轻或消除这种危险或威胁的措施,这种权利称之为()。
A:公海油污事件干预权
B:消除油污危害权
C:公海紧急干预权
D:海洋环境保护权
根据规定,船舶必须使用化学消油剂时,应事先用电话或局面向海事局申请,说明该消油剂的(),经批准后,方可使用。I、化学万分;II、牌号;III、计划用量;IV、使用地点
A:I~IV
B:I~III
C:I、III、IV
D:II~IV
When a line is subject to wear where it passes through a mooring chock,it should be().
A:wormed,parceled,and served
B:wrapped with heavy tape
C:wrapped with chafing gear
D:wrapped in leather
下列有关不妨碍各国政府为军舰及护航下的船哪种说法是正确的?()
A:规则《国际海上避碰规则》不妨碍各国政府为军舰及护航下的船舶和结队从事捕鱼的渔船制定额外的号灯或号型
B:规则不妨碍各国政府为军舰及护航下的船舶和结队从事捕鱼的渔船制定额外的队形灯、信号灯、号型或笛号
C:规则不妨碍各国政府为军舰及护航下的船舶制定额外的队形灯、信号灯、号型或笛号
D:规则不妨碍各国政府为结队从事捕鱼的渔船制定额外的队形灯、信号灯、号型或笛号
航行中的船舶,提高舵力转船力矩的措施包括:().
A:增大舵角、提高舵速和增大舵面积
B:增大舵角和增大舵面积
C:提高舵速和增大舵面积
D:增大舵角和提高舵速
No jettison of cargo shall be made fair as()unless such cargo is carried in accordance with the recognized custom of the trade.
A:General Average
B:Charter Party
C:Bill of Lading
D:Policy of Cargo Insurance
If the officer on watch is in any doubt as to the pilot’s actions,or intentions,he should ().
A:notify the Captain as soon as possible
B:seek clarification from the pilot
C:take action by his own judgment
D:cease the duty of pilot's at once
()has the ship?
A:How much hatches
B:How many hatch
C:How much hatch
D:How many hatches
重载船舶顶急流靠泊时靠拢角应:()
A:尽可能低于20°
B:尽可能高于20°
C:尽可能取大角度
D:尽可能取小角度
剪应变的单位与()的单位是相同的。
A:内力
B:扭转角
C:拉压弹性模量
D:剪切弹性模量
《国际航空和海上搜寻救助手册》这套搜救指南,内里详细说明了有关搜救事项,包括()。 ①每个阶段; ②遇难求救频率; ③程序; ④海空通讯频率; ⑤现场救助通讯频率; ⑥搜寻计划的计算; ⑦技巧
A:①~④
B:⑤~⑦
C:①~⑤
D:①~⑦
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