In a complete oil/water separator, more oil will separate ou

【名词&注释】

天然橡胶(natural rubber)、中心线(center line)、外径千分尺(outside micrometer)、百分表(indicating gauge)

[单选题]In a complete oil/water separator, more oil will separate out onto the underside of these plates and travel outwards until it is free to rise into the oil collecting space Whats the meaning of "it" in the sentence above?（）

A. a separator
B. oil
C. water
D. an oil collecting space

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学习资料：

[单选题]活塞运动部件平台检验使用最多的量具是（）。

A. 外径千分尺
B. 塞尺
C. 钢尺
D. 百分表^{(indicating gauge)}

[单选题]轴系中心线的偏差度是通过测量轴系各对法兰上的（）来衡量。

A. 偏移值
B. 曲折值
C. 偏差值
D. 偏中值

[单选题]橡胶艉轴承材料是由天然橡胶与矿物成分硫化加工制成，具有（）等优点。Ⅰ.耐热；Ⅱ.耐油；Ⅲ.弹性好；Ⅳ.吸振性好；Ⅴ.耐磨。

A. Ⅱ＋Ⅲ
B. Ⅰ＋Ⅱ＋Ⅳ＋Ⅴ
C. Ⅲ＋Ⅳ＋Ⅴ
D. Ⅱ＋Ⅲ＋Ⅳ

[单选题]A common trouble with the fuel pump plunger or fuel valve spindle is （）.

A. water leakage
B. steam leakage
C. oil leakage
D. air leakage

[单选题]The hydraulic （） is used to control engine speed.

A. motor
B. pump
C. governor
D. capsta

[单选题]How does combustion air enter the cylinder of a two-cycle diesel engine?（）

A. Cylinder head valves
B. Ports
C. Turbo chargers
D. Bleeder valve

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