4) Best example for gravity feed lubrication is

Answer is:

Wick feed lubricator

Explanation:

Best example for gravity feed lubrication is Wick feed lubricator.

Answer is:

Explanation:

Most common type of cutting fluid used in almost all the machining operation is soluble oil.

The temperature at which an oil gives off sufficient vapour to burn it continuously when ignited

The temperature at which an oil will cease to flow when cooled

The lowest temperature at which an oil gives off sufficient vapor to support a momentary flash without actually setting fire

The temperature at which fire is produced

Answer is:

Explanation:

Fire point is the lowest temperature at which an oil gives off sufficient vapor to support a momentary flash without actually setting fire.

Answer is:

Explanation:

Graphite is a solid lubricant.

Answer is:

Explanation:

The best example for splash lubrication is ring lubricator.