MANB&W型柴油机活塞杆填料函工作环的平面间隙和环端间隙超过

【名词&注释】

边界层(boundary layer)、燃烧室(combustion chamber)、填料函(stuffing box)、喷油器(injector)、活塞杆填料、穿透性裂纹、锅炉管、不符合(inconformity)、规定值

[单选题]MANB&W型柴油机活塞杆填料函工作环的平面间隙和环端间隙超过规定值的（）时，应当换新。

A. A．10%
B. B．30%
C. C．50%
D. D．80%

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学习资料：

[单选题]废气锅炉烟道温度在300—400℃时可能发生（）。

A. 高温着火
B. 小的烟垢着火
C. 氢着火
D. 铸铁着火

[单选题]应保持锅炉管表面边界层的废气温度（）烟灰着火温度，减少烟垢着火的危险。Ⅰ.低于；Ⅱ.等于；Ⅲ.高于

A. 仅Ⅰ对
B. 仅Ⅱ对
C. 仅Ⅲ对
D. Ⅰ，Ⅱ，Ⅲ都不对

[单选题]吊缸发现燃烧室零件表面有水锈时，表明（）产生穿透性裂纹。

A. 活塞
B. 气缸
C. 喷油器
D. 气缸或活塞

[单选题]通过对轴系状态的检验发现，轴系的δmax、φmax不符合^{(inconformity)}要求，这表明轴系的（）不符合^{(inconformity)}要求。

A. 同轴度
B. 偏心度
C. 偏差度
D. 弯曲度

[单选题]The （） chamber is enclosed between the cylinder head and piston.

A. lubrication
B. injection
C. cooling
D. combustio

[单选题]The operating diesel generators will have their exhaust temperatures, cooling water and lubricating oil temperatures and pressures （） in much the same way as for the main engine.

A. to be kept
B. logged
C. changed
D. has remained

[单选题]The removal of （） from lubricating oil will reduce engine wear and possible breakdowns.

A. contaminating water
B. contaminated additives
C. contaminated fuel
D. contaminating impuritie

[单选题]A three-way thermostatic control valve regulates the diesel engine cooling water temperature by passing a portion of the water （）.

A. around the engine
B. around the cooler
C. to the expansion tank
D. overboard

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