【名词&注释】
柴油机(diesel engine)、工作面(face)、调速器(governor)、不合适(inconcinnity)、平均寿命(average life)、二冲程(two-stroke)、不符合(inconformity)、符合要求(meet the requirement)、平均工作时间(mean work time)
[单选题]() are commonly used in mechanical-hydraulic governor(调速器) to sense engine speeds.
A. Bulbs
B. Bulks
C. Flyweights
D. Flywheel
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学习资料:
[单选题]造成产品出现早期故障期的原因()。Ⅰ.设计上的缺陷;Ⅱ.制造上的缺陷;Ⅲ.使用中磨合不合适
A. Ⅰ+Ⅱ
B. Ⅰ+Ⅲ
C. Ⅱ+Ⅲ
D. Ⅰ+Ⅱ+Ⅲ
[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(mean work time),用()表示。
A. MTBF
B. MTTF
C. BTBF
D. BTTF
[单选题]二冲程十字头式柴油机活塞运动部件横向校中的目的是使活塞与气缸套在()方向的间隙符合要求(meet the requirement);导板和滑块之间的()间隙符合要求(meet the requirement)。
A. 首尾/侧面
B. 首尾/工作面
C. 左右/工作面
D. 左右/侧面
[单选题]通过对轴系状态的检验发现,轴系的δmax、φmax不符合(inconformity)要求,这表明轴系的()不符合(inconformity)要求。
A. 同轴度
B. 偏心度
C. 偏差度
D. 弯曲度
[单选题]() the cylinder walls, the heat passes through them by conduction.
A. When receiving by
B. When received by
C. In order to receiving
D. In order to receive
[单选题]When would the available energy of the exhaust gases of a two-stroke/cycle diesel engine be insufficient to drive an exhaust gas turbocharger, resulting in the incorrect amount of air for combustion?()
A. During operation at low speed
B. During operation at rated speed, but low power output
C. During acceleration
D. All of the above
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