正确答案: C
用小锤敲击螺栓检验
题目:主机底脚螺栓全部装好上紧后,可以粗略检验底脚螺栓上紧程度的方法是()。
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学习资料的答案和解析:
[单选题]现代柴油机排烟温度下降,不利于废气锅炉的余热利用,因此规定废气锅炉设计的标定工况是:废气锅炉排气进口温度t1为()℃,出口温度t2为()℃。
255/188
[单选题]某曲柄的两主轴承低于主相邻主轴承,曲轴轴线呈塌腰形,则其Δ⊥()。
B.>0
[单选题]由于废气涡轮增压器(),所以它属于精密机械。
高速运转
[单选题]螺旋桨总平均螺距是()螺距的算术平均值。
各桨叶平均
[单选题]In a commonly used fuel oil system, the oil is stored in tanks in the double bottom from which it is pumped to () and heated.
a settling tank
[单选题]On opposite ends of a single shaft of a turboblower are a gas driven ()and a air compressor, which are sealed each other.
turbine
[单选题]The fresh air coming in through the inner air ports, is compressed by() to a higher pressure.
the moving piston