Fuel injection uses the jet pump system and a Woodward type

【名词&注释】

铝合金(aluminum alloy)、螺旋桨(propeller)、柴油机(diesel engine)、活塞杆(piston rod)、巴氏合金(babbitt alloy)、铜铅合金(copper-lead alloy)

[单选题]Fuel injection uses the jet pump system and a Woodward type hydraulic （） is used to control engine speed.

A. controller
B. governor
C. instrument
D. apparatu

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学习资料：

[单选题]吊缸检修柴油机连杆螺栓时一定要（）。

A. 用扭力扳手或液压拉伸器预紧
B. 用普通扳手的力臂套筒不得随意增长
C. 磁力探伤或着色探伤
D. 超声波探伤

[单选题]活塞裙外圆与活塞杆外圆的同轴度偏差应不大于（）。

A. 0.05mm
B. 0.10mm
C. 0.15mm
D. 0.20mm

[单选题]油润滑艉轴承的轴承材料一般选用（）。

A. 巴氏合金^{(babbitt alloy)}
B. 铜铅合金^{(copper-lead alloy)}
C. 铜锡合金
D. 高锡铝合金

[单选题]为了检验螺旋桨的螺距应计算出（）。Ⅰ.局部螺距；Ⅱ.螺旋桨总螺距；Ⅲ.截面螺距；Ⅳ.桨叶平均螺距；Ⅴ.螺旋桨总平均螺距。

A. Ⅰ＋Ⅱ
B. Ⅰ＋Ⅲ＋Ⅳ＋Ⅴ
C. Ⅲ＋Ⅳ＋Ⅴ
D. Ⅰ＋Ⅱ＋Ⅲ＋Ⅳ

[单选题]（） at the end of the distribution pipe ensures that adequate pressure is maintained by the pump.

A. A relief valve
B. An alarm
C. A pressure gauge
D. A non-maim valve

[单选题]In an auxiliary boiler steam and water system, the highest pressure will be in the （）.

A. steam stop valve
B. dry pipe
C. feedwater system
D. generating tube

[单选题]A diesel engine with a combustion chamber located between the crowns of two pistons is known as a/an （）.

A. double-acting engine
B. opposed pistons engine
C. single-acting engine
D. horizontal acting engine

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