Answer is:
The lowest temperature at which an oil gives off sufficient vapour to support a momentary flash without actually setting fire
Answer is:
Ring lubricator
Explanation:
The best example for splash lubrication is ring lubricator.
Answer is:
Oilcan
Explanation:
Slide-ways of a machine are frequently lubricated by Oil can.
Answer is:
Danger of corrosion
Explanation:
Danger of corrosion is the reason that tap water is not preferred as coolant on machine tool.