A.the vapor-and-air mixture is too rich B.it is mixed with certain proportions of air C.the vapor is too little compared to the air D.it is of heavy toxicity
103.What defines a great circle?__A__ A.curved line drawn on a Mercator Chart B.A course line that inscribes a loxodromic curve
C.The shortest distance between any two points on the earth D.The smallest circle that can be drawn on the face of a sphere
104.__B__What does ECDIS stand ror?
A.Electricsi Chart Display and Indication System B.Electronic Chart Display and lninrmation System C.Electric Chart Displa and lnforming System D.Electronic Chart Display and Indicating System
105.What does SSO stand for regarding ship security?___B___ A.Ship security office. B.Ship security officer. C.Ship security operator. D.Ship safety office.
106.What is coded racon?___A____
A.A racon which automatically activate itself B.A racon only working at night
C.A racon which display a Morse Code on the radar screen D.A future racon expected to be operational after Y2000
107.X When a current flows in the opposite direction to the waves,the wave____ A.Iength is increased B.height is increased C.velocity increases
D.length is unchanged
108.When a seafarer is on call,the seafarer shall have___C___if the normal period of rest is disturbed by call-outs to work.
A.not any compensatory rest period B.triple rest period
C.an adequate compensatory rest penriod D.double rest period
109.__D__When may the automatic identification system(AIS) be switched off? A.At any time as long as it is properly logged B.At the Master's professional judgment C.Only when the vessel is at anchor in port D.Under no circumstance
110.Wen moist air moves oves a cooler surface,then__A__may occur. A.Advection fog B.Radiation fog C.Frontal fog D.Steam fog
111.When the garbage is mixed with other discharges having different disposal or discharge requirements the___A__requirements shall apply.
A.more stringent B.more complicated C.more slack D. average
112.When you read the sailing directions,you shouid notice that this is one of a series of publications produced by the____A__which shoidd he consuired by users of Admiralty Charts.
A.UK Hydrographic office B.IMO
C.Internaional Hydrographic Organization
D.International Association of classification Socreties
113.Which instrument is used to measure the relative humidity of the air? __A__ A.A hydrometey B.A hygrometer C.A spectrometer D.A barograph
114.__B__Which is a weekly publication advising mariners of important matters affecting navigational safety?
A.Light List
B.Notice ti Mariners C.Coast pilot D.Sailing Directions
115.__D__Which of the following is incorrect? A.advection fog can form at any time B.advection fog can be very persistent
C.air temperatnre may cool to below its dew point to form advection fog D.advecation fog is common fog on the land
116.__A__Which one of the following rules does not concern two power-driven vessels meeting end or nearly end on as to involve risk of collision?
A.Each shall keep her course and speed
B.Each shall alter her course to starboard C.Each shall pass on the portside to the other
D.Each shall indicate such action by one short blast on the whistle
117. Which signal of the followings is not provided onboard lifeboat?
A.Rocket parachute signals
B.Buoyant smoke signals C.Hand flare signals D.Self-igniting signals
118. Which statement correctly applies to a sailing vessel is overtaking a power-driven vessel?
A.The power-diven vessel must keep out of the way of the sailing vessel
B.special circumstance situation exists
C.The sailing vessel must keep out of the way of the power-driven vessel
D.The vessel which has the other vessel to the right must keep out of the way
119. Which statement is TRUE concerning combustible gas indicators? A.One sample of air is adequate to test a tank
B.They do not work properly where there is a lack of oxygen C.They will detect a lack of oxygen
D.They are cailbrated to read the percentage chance of explosion
120.Whistle signals indicating course changes must be sounded_ A.in fog
B.when vessels are in sight of one another
C.When you can be reasonably sure of hearing the other vessels's acknowledgment
D.every time you alter course
121.Who can contact the Designated Person? A.The designated person B.The captain C.All senior officer D.All offcers and crew
【关联题】
1340 Send general alarm and announce damage control drill by PA and informed E/R for standby;1342 All crewmembers mustered at main deck and C/O brief the damage condition;assume that vessel is damage and down by head now;1345 Reduce ship's speed,check ship's position,and sound all tanks and bilges to monitor condition;1347 C/O report to master that found one crack at EPT by unknown reason,sea water flood in;inform E/R commence pumping out water;Engine Dep.crew monitor M/E,G/E,shaft system;close watertight doors and unnecessary valves as per C/E's instruction;1348 Evaluate the demage situation as per ship damage stability plan,and prepare for beach if necessary and permit;1350 seek assistance from the nearby vessel if necessary;1400 send damage reported to company and seek for guidance,and initial notification to relevant parties if necessary;1410 evaluate the drill;1412 finish damage control drill.Deficiencies:1.During damage control drill,damage control plan not fully complied;2.The safety message not sent by VHF.
1340发送通用报警和宣布伤害控制钻PA和通知W/R备用；1342年所有机组人员召集在主甲板和C/O短暂的破坏条件；假设船现在损伤和下降头1345减少船的速度，检查船的位置，和声音所有监控条件；1347C/O报告掌握，发现一个裂缝在FTP未知原因，海水涌入；通知E/R开始排出水；引擎Dep，船员监控M/E,G/E轴系统；关闭水密门和不必要的阀门，根据C/E的指令；1348年评估损失情况按船和破舱稳性计划，必要时和准备海滩和许可证；1350年从附近的船如果有必要寻求帮助；1400发送伤害报告给公司和寻求指导，必要时，最初的通知有关各方；1410年评估钻；1412年完成损害控制drill.Deficencies：1.损害控制钻期间，损失控制计划没有完全履行；2.甚高频的安然消息没有发送。
1.During this drill,chief office find leakage at vessel's part. A.fore B.aft
C.port side D.starboard side 2.In this drill,captain summons all crew at_ A.main deck B.boat deck C.bridge D. life boat
3.In this drill,which one is not among emergency action_ A.reduce speed B.sound hilge
C.pump out water D.open FPT manhole
4.In this drill,the ship's crew are assume the vessel's trim_312 A.increase B.decrease