【名词&注释】
齿轮泵(gear pump)、机动船(motor vessel)
[单选题]What is the best explanation to the underline phrase "to secure the smooth withdrawal of ships"?
A. To withdraw a ship mid make it in a safe condition
B. To secure the life of a ship and recycle it
C. To break a wreck
D. To finish the service of a ship and break it without other problems
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举一反三：
[单选题]机动船当拖带时，其拖带长度是指＿＿＿＿。
A. 拖轮船尾至被拖物体后端的水平距离
B. 拖轮船尾水线处至被拖物体后端水线处的水平距离
C. 拖轮船首至被拖物体后端的水平距离
D. 拖轮船尾至被拖物体前端的水平距离
[单选题]不会使电动齿轮泵电流增大的是( )。
A. 转速增加
B. 排出阀关小
C. 油温升高
D. 排出滤器堵塞
[单选题]半圆法110°SE换算成圆周法应为：()
A. 110°
B. 290°
C. 250°
D. 070°
[单选题]A controllable pitch propeller on a diesel driven vessel eliminates the need for
A. friction clutches
B. disconnect clutches
C. reversing gears
D. reduction gears
[单选题]During the watch keeping at sea, the engineer in charge should notify______in the event of any serious occurrence or a situation where he is unsure of the action to take
A. the master
B. the chief engineer
C. the bridge
D. the company superintendent
[单选题]《钢质海船入级与建造规范》1998年修改通报规定，附加标志主要修改的是______。Ⅰ、删除轮机的AUT-1附加标志Ⅱ、目前以BRC+MCC附加标志代替AUT-1附加标志Ⅲ、船体循环检验附加标志为CHSⅣ、轮机删除循环检验，以“计划保养系统检验”PMS替代
A. Ⅰ+Ⅱ
B. Ⅰ+Ⅱ+Ⅲ
C. Ⅰ+Ⅲ+Ⅳ
D. Ⅰ+Ⅲ
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