正确答案: C
oil leakage
题目:A common trouble with the fuel pump plungers or fuel valve spindle is ().
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学习资料的答案和解析:
[单选题]缸盖底面裂纹一般多产生在(),即有应力集中的部位。Ⅰ.阀孔周围;Ⅱ.阀孔边缘;Ⅲ.阀孔之间;Ⅳ.阀孔座面;Ⅴ.底面圆周方向。
D.Ⅱ+Ⅲ
[单选题]二冲程柴油机气缸套产生穿透性裂纹,柴油机运转时就会发现()异常现象。
B.膨胀水柜水位波动
[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()。
422mm
[单选题]增压器转子转动时产生的离心力是()。
空间汇交力系
[单选题]轴系校中状态发生变化主要包括轴系中心线的()发生变化。Ⅰ.直线度;Ⅱ.偏差度;Ⅲ.对中性;Ⅳ.同轴度;Ⅴ.曲折度。
Ⅱ+Ⅳ
[单选题]水润滑式艉轴非工作轴颈一般包覆()或()。
玻璃钢/橡胶
[单选题]() provide the water to the pistons.
Telescopic pipes
[单选题]In an engine with a pot-shaped piston, some lubricating oil from the main bearing will pass along a drilled passage in the crankshaft to the bottom end bearing and then up a connection rod to the ().
gudgeon pi
[单选题]There is () in any water cooling system for a diesel engine allowing for expansion and water make-up in the system as well as air vent and chemicals addition.
a head tank