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单选题
中版海图图式中，缩写“疑位”是指（）。
A
礁石、浅滩等的存在有疑问
B
深度可能小于已注明的水深注记
C
对危险物的位置有怀疑
D
危险物的位置未经精确测量
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更多 “单选题中版海图图式中，缩写“疑位”是指（）。A 礁石、浅滩等的存在有疑问B 深度可能小于已注明的水深注记C 对危险物的位置有怀疑D 危险物的位置未经精确测量” 相关考题
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单选题When fighting a spreading fire resulting from a broken fuel line, you should FIRST （）.A
look for a CO2 extinguisherB
use a soda acid extinguisherC
shut off the fuel supplyD
smother the fire with rags
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单选题“Movement of engine no longer required” means “（）”.A
Stop EngineB
No Engine RevolutionsC
Stand-by EngineD
Finished With Engine
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单选题船舶在驶近可能被居间障碍物遮蔽他船的狭水道或航道的弯头时，应特别机警和谨慎地驾驶，这里的特别机警和谨慎地驾驶包括：（）.A
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在任何时候均应以能维持舵效的最小速度过弯D
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考题
单选题After a fire has been extinguished in a closed space, personnel may safely enter the space when （）.A
smoke density has been decreased sufficiently to see the bulkhead opposite the compartments entranceB
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all smoke and toxic fumes are removed and an adequate oxygen supply is presentD
overhaul has been completed to remove any possible source of re-ignition
考题
单选题Medium speed engines have a （） power to weight ratio than the slow speed two strokes, but due to the higher speeds tend to have （） maintenance intervals.A
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lower；reducedD
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考题
单选题You are loading a cargo that includes cylinders of acetylene aboard your break bulk vessel. Which statement is true? （）A
The cylinders must be stowed at least 10 horizontal feet from corrosive materials in the same spaceB
Stowage in the upper deck-deck is considered to be the equivalent of on deck stowage for this cargoC
The cylinders must have a red label for flammability and a green label for compressed gasD
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考题
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Ⅱ＋Ⅲ＋Ⅴ＋ⅥB
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Ⅲ＋Ⅳ＋Ⅴ＋ⅥD
Ⅰ＋Ⅱ＋Ⅴ＋Ⅵ
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气压的变化趋势是下降的，在西风带看到高云自东向西移动C
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考题
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a clogged filter elementB
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excessive lube oil flowD
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考题
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compression strokeC
power strokeD
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考题
单选题疲劳断裂按环境影响可分为（）。A
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A或B
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