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单选题
冰区航行,船舶应尽可能从冰区的()方向接近冰区,并尽量选择在冰块的处用慢速直角驶入。
A
上风,凹陷
B
上风,突出
C
下风,凹陷
D
下风,突出
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国际、国内海上航行/船东或船舶经营人B
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单选题中国近海表层水温特点是()。 Ⅰ.冬季南北海区温差很大; Ⅱ.冬季同纬度沿岸表层水温低于外海; Ⅲ.夏季南北海区温差较小; Ⅳ.夏季同纬度沿岸表层水温高于外海; Ⅴ.冬季南北海区温差很小; Ⅵ.夏季表层等水温线比冬季密集。A
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Ⅱ,Ⅳ~ⅥC
Ⅰ,Ⅱ,Ⅲ,ⅣD
Ⅱ,Ⅴ,Ⅵ
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①③④⑤B
②④⑤⑥C
①③D
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考题
单选题船舶检验的目的在于()。 Ⅰ.保证船舶的营运安全和防止污染、损害海洋环境; Ⅱ.保证船旗国和港口国政府对船舶实施有效的管理和控制; Ⅲ.为船舶所有人提高船舶在航运市场的竞争力,降低保险费率; Ⅳ.为公证、索赔、海事处理等提供必要的技术依据。A
Ⅰ、Ⅲ、ⅣB
Ⅱ~ⅣC
Ⅰ~ⅣD
Ⅱ、Ⅲ
考题
单选题Magnetic variation changes with a change in().A
the vessel's headingB
sea conditionsC
seasonsD
the vessel's position
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单选题When the prime movers of two paralleled generators are equipped with mechanical- hydraulic governors, and are operating within their designed range, the unit with the least amount of speed droop will ().A
pick up more of any increase in loadB
pick up less of any increase in loadC
share an equal amount of any increase in loadD
drop an equal amount of any decrease in load
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weighing the extinguisherC
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relieves excessive fluid pressureB
takes the pump off stroke when the desired rudder angle is attainedC
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风力、水动力呈周期性变化,锚链张力呈周期性变化C
风力、水动力为定常值,锚链张力为定常值D
风力、水动力为定常值,锚链张力呈周期性变化
考题
单选题规则允许直航船可以独自采取操纵行动的时机是()。A
两船已接近到单凭让路船的操纵行动已不能保证两船在安全距离上驶过时B
当发觉两船接近到单凭让路船的行动已不能避免碰撞时C
只要有助于避碰,在任何时候均可独自采取行动D
一经发觉让路船显然没有遵照规则要求采取适当的避碰行动时
考题
单选题某柴油机气缸常数为1.2×10-5,该缸的平均指示压力为0.9MPa,若转速为115r/min,该缸的指示功率为()。A
2587kWB
1038kWC
1242kWD
1100kW
考题
单选题You are on a multiple-product chemical tanker with orders to load diethylamine.What is NOT a requirement for transporting this cargo().A
You must have two toxic vapor detectors or the pumproom must meet special requirementsB
Each crew member must be provided with an emergency escape breathing apparatusC
A person taking cargo samples must wear protective clothingD
If you are carrying propionic acid also,the venting systems must be segregated
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单选题Records of tests and inspections of a cargo vessel’s fire extinguishing systems shall be kept on board().A
for 1 yearB
for 2 yearsC
until the next Coast Guard inspectionD
until the vessel's Certificate of Inspection expires
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单选题The full utilization of berths can be achieved if().A
ships arrive at randomB
cargo-handling time varies greatlyC
ships have to queue to get onto berthsD
ships do not have to wait to get onto berths
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