【名词&注释】
植物油(vegetable oil)、环氧树脂(epoxy resin)、化学品(chemicals)、聚氯乙烯塑料(polyvinyl chloride plastics)、非金属材料(nonmetallic material)、救生艇(boat)
[单选题]大部分的植物油被评为()类化学品。
A. X
B. Y
C. Z
查看答案&解析
举一反三：
[单选题]船舶低压管路可采用非金属材料(nonmetallic material)中的( )来替代金属材料。
A. ABS塑牡
B. 硬质聚氯乙烯塑料
C. 环氧树脂
D. ABS塑牡或硬质聚氯乙烯塑料
[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 compartment's entrance
B. a lifeline and explosion proof flash light are used
C. all smoke and toxic fumes are removed and an adequate oxygen supply is present
D. overhaul has been completed to remove any possible source of re-ignition
[单选题]大风浪中施放救生艇(boat)、救助艇应放哪一舷的艇?（）
A. 上风舷
B. 下风舷
C. 随便
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