1. [单选题]A ship in Hong Kong will sail for Port Said passing through the ________
A. Panama Canal
B. Grand Canal
C. Kiel Canal
D. Suez Canal
2. [单选题]四冲程柴油机(four-stroke diesel engine)的活塞常采用_______材料
A. 碳钢
B. 铝合金
C. 铸铁
D. 耐热钢(heat resistant steel)
3. [单选题]若液压舵机只能单向转舵,但改用机旁操舵即正常,可能是( )。
A. 主泵只能单方向排油
B. 某侧安全阀开启压力过低
C. 伺服油缸遥控系统电磁换向阀一端线圈断路
D. 主油路锁闭阀之一在回油时不能开启
4. [单选题]椎骨是哪类骨?( )
A. 长骨
B. 短骨
C. 不规则骨
D. 扁骨
5. [单选题]航海上划分方向的方法有:()
A. 半圆周法
B. 圆周法
C. 罗经点法
D. 以上都是
6. [单选题]Which of the following problems can occur if you continually fail to drain off condensate from a starting air receiver?
A. Corrosion and eventual failure of the tank
B. Gumming of the tank relief valves
C. Immediate failure of components downstream of the compressed air system
D. Boiling of the water oil mixture as pressure is reduced
7. [单选题]规则中“应避免横越他船前方”的规定,适用于(suitable for)________。
A. C均不正确
8. [单选题]救生筏(life raft)中备有海锚两只,存放布置的要求是()
A. 两只海锚都存放在备品袋中,以便于安全可用用
B. 一只存放在备品袋中、一只存放在进出口的专用袋中便于立即可
C. 一只存放在备品袋中,另一只系在筏的进出口,随着筏的充账而抛放入水
9. [单选题]Duty sailors will consider the conditions of (装卸货)______.
A. cargo handled
B. cargo handles
C. cargo handle
D. cargo handling
10. [单选题]要维持人的生命空气中含氧量不少于()。
A. 11%
B. 16%
C. 21%