【名词&注释】
柴油机气缸套(engine cylinder liner)、安全操作规程、不符合(inconformity)、用柴油机、固定物(fixture)
[单选题]一般来说只是()道中间轴承有上瓦,而()道轴承不设上瓦。
A. 第一/其余各
B. 第二/其余各
C. 第末/其余各
D. 首、尾两/其余各
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学习资料:
[单选题]MANB&W6L42型船用柴油机气缸套最大内径增量为2mm,则最大缸径为()。
A. 418mm
B. 422mm
C. 420mm
D. 424mm
[单选题]拆装螺母时,不符合安全操作规程的是()。
A. 一手抓住固定物(fixture)
B. 另一手力用推
C. 少用套筒或梅花扳手
D. 根据需要增加扳手延长套管的长度
[单选题]压气机叶片损伤是由于()造成的。Ⅰ.轴承严重磨损;Ⅱ.吸入硬质颗粒;Ⅲ.气流冲击;Ⅳ.振动;Ⅴ.碰撞。
A. Ⅱ+Ⅳ
B. Ⅰ+Ⅱ+Ⅴ
C. Ⅲ+Ⅳ+Ⅴ
D. Ⅰ+Ⅱ+Ⅳ+Ⅴ
[单选题]船舶轴系同轴度误差是指()的同轴度误差。
A. 曲轴与艉轴
B. 中间轴与艉轴
C. 曲轴与中间轴
D. 以上均是
[单选题]艉轴管装置的主要作用是()。Ⅰ.支承,Ⅱ.减磨,Ⅲ.密封,Ⅳ.散热,Ⅴ.构成轴系。
A. Ⅱ+Ⅲ
B. Ⅰ+Ⅱ+Ⅳ
C. Ⅲ+Ⅳ+Ⅴ
D. Ⅰ+Ⅲ
[单选题]The selection of a lubricating oil depends to a great extent on the operating conditions,().
A. the type of coolant
B. the design of the engine
C. the type of fuel to be burned
D. B and C
[单选题]Large, two-stroke/cycle, main propulsion, diesel engine cylinders can be successfully pressure charged during normal operation, by using the ().
A. exhaust gas temperature system
B. exhaust load system
C. constant or pulse pressure system
D. constant volume system
[单选题]High diesel engine cooling water temperatures can be caused by ().
A. a worn water pump
B. not enough coolant
C. air in the cooling system
D. all of the above
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