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单选题
液化船上的货舱控制式透气系统中如装设由主管机关认可的高速透气阀，则透气管在甲板或纵向步桥上的高度可设至（）以上。
A
6M
B
5M
C
4M
D
3M
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单选题在NAKAKITA型黏度控制系统中，能引起燃油黏度增加的原因有（）。 ①测粘计毛细管堵塞 ②差压变送器中恒节流孔堵塞 ③差压变送器中喷嘴堵塞 ④调节器长恒节流孔堵塞 ⑤调节器喷嘴堵塞 ⑥主机转速增加A
①②⑥B
①③⑤C
②③⑤D
②⑤⑥
考题
单选题（） is not properly set thus causing either advanced or retarded firing.A
A pistonB
A fuel injection pumpC
A feed water pumpD
A lube oil pump
考题
单选题根据我国劳动法，有关劳动争议处理途径的说法中，不正确的是（）。A
当事人可以向本单位劳动争议调解委员会申请调解B
调解不成，当事人可以向劳动争议仲裁委员可以会申请仲裁C
调解不成，当事人可以直接向人民法院提起诉讼D
调解原则适用于仲裁和诉讼程序
考题
单选题Your vessel is docking, but not yet alongside. Which line will be the most useful when maneuvering the vessel alongside the pier?（）.A
Bow breast lineB
Bow spring lineC
Inshore head lineD
Offshore head line
考题
单选题下列关于电动绞缆机对拖动电动机的基本要求的叙述中，正确的是（）。A
绞缆机电动机应选用防水式和短期工作制电机B
绞缆机电动机在堵转情况下不能工作C
绞缆机电动机应选用普通长期工作制电机D
绞缆机电动机允许堵转1min以上的电机
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单选题When landing a lifeboat through heavy surf with a strong current running parallel to the beach (from right to left when facing from seaward) the recommended procedure is to（）.A
approach while coming to the left to take advantage of the currentB
drop an anchor outside the surf line，then pay out anchor line over the bow while the seas carry the boat toward the beachC
approach slow enough so that the boat can be brought around to meet breaking seas on the bowD
rig a drogue with tripping line over the bow，back ashore with drogue tripped between breakers
考题
单选题Your tank vessel is fully loaded, and you find that she is down slightly by the head. To adjust the trim, you may（）.A
add ballast aftB
load more cargo aftC
shift cargo aftD
All of the above
考题
单选题The major difference between the discharge and suction valves installed in most low pressure, reciprocating air compressors is that（）A
one valve seats upwards, while the other seats downwardsB
the reed valves used on the discharge are made substantially thicker and heavier than the suction valvesC
the suction valve springs exert a greater tension than the discharge valve springsD
the discharge valve springs exert a greater tension than the suction valve springs
考题
单选题主配电板发电机控制屏上的电压表与电流表是测量（）。A
发电机相电压、相电流B
发电机线电压、线电流C
起货机线电压、线电流D
岸电的线电压、线电流
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