【名词&注释】
预热器(preheater)、轴承座(bearing chock)、说明书(specification)、不一定(not always)、不低于(no less than)、增压器转子(blower rotor)
[单选题]厚壁瓦欲自轴承座内盘出时,应从()盘出。
A. 瓦口较薄端
B. 瓦口较厚端
C. 瓦口任意端
D. 有定位凸起端
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学习资料:
[单选题]废气锅炉受热面废气温度不能太低,否则凝结的硫酸可使烟灰有粘性,会增加烟垢形成的趋势,因此锅炉废气出口温度应不低于(no less than)()℃,锅炉进口给水循环温度应高于()℃(对有预热器的)。
A. 180/120
B. 170/110
C. 155/120—130
D. 188/130
[单选题]柴油机说明书规定的定期吊缸检修期是在其()进行。
A. A.早期故障期
B. B.随机故障中
C. C.随机故障期末
D. D.晚期故障开始
[单选题]保证增压器转子(blower rotor)受热膨胀不会产生压气机叶轮与气封板碰撞的间隙是()值。
A. K
B. L
C. M
D. N
[单选题]按轴系合理校中原理校中时,各轴承的连线是()。
A. 直线
B. 曲线
C. 折线
D. 不一定
[单选题]Acid solution() in the system can be tested from time to time by putting some on to a piece of lime.
A. strength
B. dense
C. percentage
D. velocity
[单选题]The lubricating oil is pumped from the drain tank, very often with () in the suction line.
A. a filter
B. a strainer
C. a magnetic filter
D. a fine strainer
[单选题]Which of the two events listed occurs simultaneously in a two-stroke/cycle diesel engine?()
A. Exhaust and scavenging
B. Scavenging and compression
C. Ignition and expansion
D. Exhaust and compressio
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