【名词&注释】
轴承座(bearing chock)、救生艇(boat)、大幅度(greatly)
[单选题]During the dock repair, when installing the tail shaft and propeller, _____ should be on the spot for supervising
A. chief engineer
B. engineer
C. captain
D. any member of the engine department
查看答案&解析
举一反三：
[单选题]船舶在不利纵倾并向一舷横倾多少度时，应能将载足全部乘员定额及属具的救生艇降落到水面：
A. 10°
B. 15°
C. 20°
[单选题]有关避免碰撞的行动，下列说法正确的是：I、任何避免碰撞的任何行动均应是积极的、及时的、大幅度的；II、任何避免碰撞的任何行动，均应是积极的、及时的、大幅度的；III、根据驾驶和航行规则所采取的任何避免碰撞的行动，如当时环境许可，均应是积极的、及时的、大幅度的
A. I、II、III
B. II、III
C. III
D. II
[单选题]You should （松）_____ the mooring lines at the same time when the wind is big
A. fasten
B. slack
C. fast
D. slacken
[单选题]厚壁瓦瓦背与轴承座贴合质量的要求是接触面积不小于( )。
A. 70%
B. 75%
C. 80%
D. 85%
[单选题]If a used lube oil analysis indicates excessive chromate content, this means
A. air filtration is inadequate
B. engine coolant is leaking into the lube oil
C. fuel oil is leaking into the lube oil
D. the piston rings are excessive worn
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