【名词&注释】
柴油机排气(diesel exhaust)、不允许(not allow)、柴油机负荷(diesel load)
[单选题]In a typical fuel system, the oil is stored in () in the double bottom.
A. setting tanks
B. service tanks
C. tanks
D. drain tank
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学习资料:
[单选题]不允许柴油机排气恶化,防止锅炉烟垢沉积,其措施是()。
A. 保持柴油机良好的燃烧和排气,减少排气颗粒排放率
B. 在柴油机负荷低时,旁通全部废气,防止锅炉烟垢沉积
C. A十B
D. 在柴油机负荷高时,废气部分旁通,减少锅炉烟垢沉积
[单选题]今测得某船主机曲轴臂距值,求在垂直平面上的臂距差Δ⊥=()。
A. L上-L下
B. (L上-L下)/2
C. L上+L下
D. (L上+L下)/2
[单选题]航行时,水润滑艉轴承填料密封装置应将压盖螺栓(),停航时将压盖螺栓()。
A. 旋松/旋松
B. 旋松/上紧
C. 上紧/上紧
D. 上紧/旋松
[单选题]航行中在舵机工作正常的情况下,舵沉重的原因可能是()。
A. 舵杆变形
B. 舵承损坏
C. 舵系安装不良
D. 舵杆折断
[单选题]() the cylinder will contain a great weight of air and will be capable of burning a great quantity of fuel.
A. At the beginning of the compression stroke
B. At the beginning of the suction stroke
C. At the end of the working stroke
D. At the end of the exhaust stroke
[单选题]Compressed air is supplied by air compression to ().
A. the air receivers
B. the starting valves
C. the cylinder covers
D. the distributor
[单选题]When turning the engine with turning gear, you should keep the indicator cocks ().
A. attached to the indicators
B. opened
C. closed
D. broke
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