用二氧化碳灭火可降低空气中氧气的含量,当氧气含量低于______时,绝大多数燃烧会自然熄灭。
A.30%
B.35%
C.12%
D.16%
尾轴密封装置防蚀衬套与密封环接触处的磨损凹痕可以采用______予以修复。
A.焊补
B.修磨
C.光车
D.磨削
Injuries resulting in loss of life or incapacitation,aboard vessels,must be reported to the ______.
A.MOC
B.CCS
C.MSA OF CHINA
D.International Association of Navigation
若船位到物标的距离为15海里,有±1°的观测方位标准差,则方位船位线的标准差为_________。
A.±1海里
B.±0.5海里
C.±0.26海里
D.1.5海里
A.30
B.40
C.50
D.60
While off-loading from an offshore supply vessel with the crane,the wind increases in strength and changes direction significantly,you should ______.
A.Expedite off-loading
B.Stop off-loading,but keep the offshore supply vessel in the present location
C.Continue off-loading with no changes
D.Move the offshore supply vessel to the downwind side
在对主空压机自动控制系统的管理中,应定期检查______等项目。
I、自动起动和自动停车
II、滑油低压报警模拟试验
III、压缩机空气出口高温报警模拟试验
IV、冷却水高温报警模拟试验
A.I、II、V
B.I~IV
C.I
D.I、II、III
A、降低转速
B、采用群阀或锥阀
C、阀弹簧张力减弱
D、限制泵阀升程
求生知识与技能的含盖面很广,需要通过理论学习、实际操作来获得。
此题为判断题(对,错)。
A、保证船舶航向、停泊及装卸的是辅助系统
B、用以处理船上油污及垃圾的设备为辅助装置
C、凡是能产生能量的装置称为船舶动力装置
D、使船舶克服阻力以某一航速航行的是主动力装置
A.船舶的《海上交通事故报告书》在特殊情况下可以适当延迟递交
B.海事局在进行事故调查时可以通知有关机关和社会组织参加
C.当事船舶在任何情况下,未经海事局同意,不得离开事故现场
D.船舶发生火灾、爆炸等事故,船长必须申请公安消防监督机关鉴定
A.抛光
B.喷丸
C.滚压
D.表面强化
DGS8800e数字电子调速器,在操作面板上用钥匙把锁转到开的位置,然后按下燃油设定(FUELSETPOINT)按钮,则______。
A.调速器的基本功能和转速反馈信号都将被恢复
B.调速器的基本功能和转速反馈信号都将被调整
C.调速器的基本功能和转速反馈信号都将被设定
D.调速器的基本功能和转速反馈信号都将被切除
燃烧是一种放热、发光的缓慢物理放应。
此题为判断题(对,错)。
抛出一定链长的单锚泊船,当外力增大时,该锚泊船将获得的锚泊力将______。
A.增大
B.不变
C.减小
D.因走锚而降为零
下列有关墨卡托海图局部比例尺的说法中,哪一个准确?
A.墨卡托海图内各点局部比例尺相同
B.墨卡托海图同一纬线各点的局部比例尺不同
C.墨卡托海图某点各方向局部比例尺相同
D.墨卡托海图上某点各个方向的局部比例尺可能都不相同
英版图式中的LFl的灯质是_____________。
A.连续快闪光
B.连续甚快闪光
C.连续超快闪光
D.间断超快闪光
一机动船与下列机动船舶交叉相遇,致有构成碰撞危险,适用交叉相遇局面条款的是________。
A.失控船
B.操纵能力受到限制的船舶
C.限于吃水船
D.A、B、C都不是
A、0.988,0.991
B、0.991,0.988
C、0.891,0.918
D、0.918,0.988
船舶、设施发生海上交通事故,必须立即用______向就近港口的港务监督报告。I.甚高频电话II.无线电报III.手机IV.书面形式
A.I+II+III+IV
B.I+II+III
C.II+III+IV
D.I+II
海上撤离系统可以帮助人员迅速地离开难船登上救生艇筏,主要用在客轮上。
此题为判断题(对,错)。
下述泵中不必装安全阀的是:
A.往复泵
B.齿轮泵
C.螺杆泵
D.离心泵
四阶段安全作业法适合于()安全和职业技能教育。
A.新船员
B.老船员
C.新老船员
在编制修理单时应考虑备件的使用,如船方提供备件应当______。
A.在谈判中说明
B.在修理单中注明
C.在实施修理时说明
D.视情而定
此题为判断题(对,错)。
中国船级社规范中的PMS和CMS的相同之处是______。
A.检验项目均不能分开
B.均可代替特别检验
C.均能代替柴油机滑油状态监控系统检验
D.均能代替螺旋桨轴状态监控系统检验
能以气雾形式吸入的止喘药是______。
A.舒喘宁
B.喘定
C.氨茶碱
A schooner is a fore-and-aft rigged vessel with ______.
A.a single mast
B.two masts: with the mizzen stepped abaft the rudder post
C.two masts: with the mizzen stepped forward of the rudder post
D.at least two masts: a foremast and a mainmast
喷射泵工作中,流体的动量交换主要发生在:
A.喷射过程
B.引射过程
C.混合过程
D.扩压过程
使用新刷时应将新刷用_______浸洗可防止刷毛脱落或刷毛太硬。
A.松香水
B.温水
C.煤油
D.海水
为保证撇缆迅速成功,在投掷撇缆前必须准备()。
A.两根缆绳
B.只要一根就行
C.没有必要
D.以上均错
A、颜色变深
B、颜色变浅
C、有异样气味
D、变得浑浊
STCW公约规定值班驾驶员在航行中的任务和职责是:I、值班时应专心执行值班任务,负责航行安全,任何情况下均不得在交班前离开岗位;II、在安全航行方面如船长在驾驶台时,应由船长负责航行安全;III、当遇到任何疑难时,如需要,应当机立断地使用主机和声号
A.I、II、III
B.I、II
C.I、III
D.III
A.Ⅰ+Ⅴ
B.Ⅰ+Ⅲ
C.Ⅱ+Ⅲ+Ⅳ
D.Ⅰ+Ⅳ
从消防角度讲燃烧的瞬间发生并想四周扩散的现象称之为爆炸。
此题为判断题(对,错)。
材料:MV UNISOL Grounded
With the engines on stand-by,orders were given to cut the remaining forward lines at 0755 hours,the starboard engine was put on slow astern and the helm to hard a starboard.
When the forward lines were cut,the bow was blown off and swung away from the quay under the influence of the wind and,combined with the effect of the engine going astern on the after spring,canted the bow to port,until a heading of North was reached with the vessel&39;s stern approximately 15 meters off the dock face.
The engines were put to half astern at 0810 hours and with the bow continuing to swing to port,the after back-spring parted with the stern about 20 meters clear of the wharf.Orders were given to cut the remaining 5 stern lines.This was accomplished by 0818 hours,at which time the end of the pier was abeam of the bridge and the vessel was heading in a NW&39;ly direction.
Both engines were placed to full astern with the shaft turning 80-90 revolutions.As the UNISOL was unable to gain sternway and with high seas at the end of the breakwater,the Pilot feared that the vessel&39;s starboard quarter was in danger of striking the breakwater.Hence the engines were stopped at 0827 hours,and orders were given to let go port anchor to 2 shackles in the water,but about 4 shackles ran out before the brake could be fully applied.At 0828 hours,orders were given to shorten up on the anchor cable,the telegraph put on full ahead and the helm to hard to port.When the engines responded at 0829 hours,the anchor chain was seen to be stretched out on the port beam with a great deal of weight on it and the ship&39;s head was 220° gyro with the vessel swinging to port.
The anchor was hove short to 2 shackles in the water by 0835 hours,and the vessel continued to drift westwards with 80-90 (full ahead) revolutions on the Engine.At this stage,orders were given to pay out the cable,which was paid out to 5 shackles in the water by 0838 hours,but that too failed to arrest the westward drift of the vessel.
At 0840 hours,December 7,1983,with the ship&39;s head on 180°,the UNISOL grounded on a rocky bottom,forward of the main engine on her star board side,in approximate position 48°20′30.5″ North,64°40′02″West.A spout of water mixed with oil about 60 centimeters in diameter and 2.5-3 meters high above the engine room bottom plating was observed,and at which time the main engines seemed to slow down.
问题:the wind was blowing ______.
A.West
B.East
C.North
D.south
The vessel had ______.A.one engine
B.two engines
C.three engines
D.fore engines
According to the passage, ______.A.The bow of the vessel parted the pier first
B.The stern of the vessel parted the pier first
C.The beam of the vessel parted the pier first
D.It can not tell which part of the vessel parted the pier first
It can be concluded that ______ .A.the vessel was lying portside along the pier
B.the vessel was lying starboardside along the pier
C.the vessel was lying at a buoy
D.the vessel was anchored
请帮忙给出每个问题的正确答案和分析,谢谢!
1998年1月1日起施行的《中华人民共和国海船船员值班规则》是我国制定的______海船船员值班规则,其值班规定系海船船员的______值班要求。
A.第一部/最低
B.第二部/最低
C.第一部/最高
D.第二部/最高
When a cargo boom or crane is rated at varying capacities,there will be a table at the controls which relates safe working load to ______.
A.winch speed
B.boom strength
C.load radius
D.cable strength
接收机整机的选择性主要取决于_____。
A.输入回路
B.高频放大器
C.中频放大器
D.低频放大器
单物标方位距离定位时,当物标在船舶首尾线附近时,物标方位变化慢距离变化快,应该_________。
A.先测方位后测距离
B.先测距离后测方位
C.方位和距离同时测
D.先测距离或者方位都可以
Which of the following is NOT a recommended safe practice?
A.Securing equipment against slipping or drifting
B.Operating machinery at its recommended speed
C.Repairing loose handles on tools before using
D.Using tools for purposes for which they are not designed
非本船人员进入机舱,须经谁准许______。
A.船长
B.轮机长
C.值班人员
D.船东代表
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