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问答题
日本北海道至阿留申群岛附近的海雾，主要出现在哪个季节？
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预付款B
备用金C
代理费D
暂借款
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单选题机械式气阀传动机构需供油润滑的部位一般包括（）。 Ⅰ.摇臂轴 Ⅱ.摇臂与阀杆接触部位 Ⅲ.摇臂与顶杆接触部位 Ⅳ.顶头与其导套的滑动面A
Ⅰ＋Ⅱ＋Ⅲ＋ⅣB
Ⅰ＋ⅣC
Ⅱ＋Ⅲ＋ⅣD
Ⅰ＋Ⅲ＋Ⅳ
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单选题Combustion knock occurring in a diesel engine can be caused by （）A
low coolant temperatureB
insufficient fuelC
high ambient temperatureD
carbon buildup on the injector tips
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单选题船舶动力装置的组成，可分为下列几个部分（）。A
推进装置、辅助装置、管路系统、甲板机械、防污染设备、自动化设备B
主机、发电机、锅炉C
蒸汽动力装置、燃气动力装置、核动力装置D
A+B
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单选题危险货物报告是（）A
船舶载有危险货物时所做出的报告B
当船载危险货物在距岸200nmile范围内散失时所做出的报告C
当船载危险货物在大洋上散失时所做出的报告D
当船载危险货物在距岸100nmile范围内散失时所做出的报告
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单选题When within the entrance, the vessel should（）surf islet.A
navigateB
arrive atC
steer forD
maneuver for
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单选题Cargo that gives off fumes that may contaminate other cargo is known as a(n) （）.A
delicate cargoB
dirty cargoC
toxic cargoD
odorous cargo
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单选题If the current and wind are in opposite directions，the sea surface represents（）.A
a greatly reduced wind speedB
a higher wind speed than what really existsC
a lower wind speed than what really existsD
more turbulent winds
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单选题Which one is not the normal operation for boiler shutdown?（）A
Carry out soot blowing if permissibleB
Change fuel supply to diesel oilC
Close steam stop valves on boiler when pressure is reducedD
Drain boiler empty when it has cooled down
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单选题船舶在紧急倒车时，主机虽然已倒转，但由于船舶还在前进，使水流冲击螺旋桨叶背，还在产生的负转矩和负推力，负推力（），负转矩（），所以最大转速仅能达40%～60%nH。A
使螺旋桨转速增加/对船舶起制动作用B
对船舶起制动作用/使螺旋桨转速降低C
使船舶实现倒航/对船舶起制动作用D
对船舶起制动作用/是螺旋桨倒转的阻力矩
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单选题Oil may NOT be transferred unless（）.A
there are two certificated tankermen on each vesselB
the vessel is equipped with constant-tension winchesC
discharge containment equipment (i.e. drip pans) are in placeD
All of the above
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单选题Zinc rods are installed in the refrigeration system （）.A
liquid strainerB
liquid receiverC
saltwater condenserD
evaporator
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单选题A seaman lost his continuous discharge book during the voyage. Upon discharge from Articles，he should be issued a（）.A
letter of service on company letterhead signed and sealed by the masterB
Record of Entry in a Continuous Discharge Book for use in applying for a duplicate bookC
Certificate of Discharge with the white copy forwarded to the CommandantD
Mutual Release (CG-2119)，and the articles should be annotated as to the loss
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