【名词&注释】
不符合(inconformity)
[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
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[单选题]换新主机的连杆大端轴瓦时,其上瓦与曲柄销颈在()内的接触面积不少于()。
A. 40°~60°/75%
B. 40°~60°/85%
C. 60°~90°/75%
D. 60°~90°/85%
[单选题]今测得某船轴系的某对法兰偏中值为δ=0、φ≠0,该相邻轴轴心线呈()状态。
A. 同轴
B. 平行
C. 相交
D. 任意
[单选题]通过对轴系状态的检验发现,轴系的δmax、φmax不符合要求,这表明轴系的()不符合要求。
A. 同轴度
B. 偏心度
C. 偏差度
D. 弯曲度
[单选题]() is usually driven by the engine camshaft and supplies pilot air to the cylinder air start valve.
A. An air receiver
B. An operating valve
C. An automatic valve
D. An air distributor
[单选题]Before replacing a piston you should check the rings to see that all clearances and gaps are within the permissible ().
A. deflection
B. discrepancy
C. error
D. tolerance
[单选题]Blow-off of the relief valves of the main cylinders during operation indicates ().
A. the cylinder cover is cracked
B. the injector holes is clogged
C. the cams are not properly set
D. fuel pump is leaking
[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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