某船航行在风平浪静的海上，增压器发生严重故障，主机平均指示压

【名词&注释】

增压器(turbocharger)、平均寿命(average life)、静平衡试验(static balance test)、平均工作时间(mean work time)、风平浪静(calm)

[单选题]某船航行在风平浪静^(calm)的海上，增压器发生严重故障，主机平均指示压力＞0.5MPa，此时对增压器应采取（）措施进行处理。

A. 停止运转
B. 一端锁住转子
C. 锁住转子两端
D. 拆除转子

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学习资料：

[单选题]对于不可修产品的平均寿命，是指从开始使用到发生故障的平均工作时间，用（）表示。

A. MTBF
B. MTTF
C. BTBF
D. BTTF

[单选题]桨叶经焊补修理后，为保证焊补质量应进行（）等处理。Ⅰ.磨光；Ⅱ.着色探伤；Ⅲ.测螺距；Ⅳ.静平衡试验；Ⅴ.退火。

A. Ⅱ＋Ⅲ
B. Ⅰ＋Ⅱ＋Ⅴ
C. Ⅲ＋Ⅳ＋Ⅴ
D. Ⅰ＋Ⅱ＋Ⅲ＋Ⅳ

[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]A separate piston cooling system is used to limit any contamination （） piston cooling glands（） the piston cooling system only.

A. between；to
B. either；or
C. from；to
D. neither；nor

[单选题]The function of a lubricating oil is （） to lubricate the running surface （） to carry away a great deal of heat.

A. not；but
B. neither；nor
C. either；or
D. not only；but also

[单选题]The purpose of the delivery check valve used in a diesel fuel injection jerk pump is to （）.

A. assist in a quick cutoff of fuel injection
B. allow oil backflow from the injector to the helix
C. reduce fuel oil pressure between injection strokes
D. meter the quantity of fuel delivered

[单选题]The small end of the connecting rod is attached to the piston with a （）.

A. crankpin
B. sliding wedge
C. wrist pin
D. torque bashing

[单选题]A change in the degree of fuel atomization in a diesel engine would most greatly affect （）.

A. air turbulence
B. fuel penetration
C. fuel spray angle
D. fuel injection rate

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