Answer is:
Run the machine smoothly taking least load
Explanation:
Lubricant is necessary to run the machine smoothly taking least load
Answer is:
1:20
Explanation:
The general ratio of soluble oil and water used as coolant is 1:20.
Answer is:
Grease
Explanation:
The best example for semi-liquid lubricant is grease.
Answer is:
Soluble oil
Explanation:
Most common type of cutting fluid used in almost all the machining operation is soluble oil.