Lubricants Interview Questions - 2 | Snaprecruit.com

Lubricants Interview Questions - 2 | Snaprecruit.com

Lubricants interview questions part 2

Lubricants interview questions part 2

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Total Questions: 20

1. Only lamellar structure lubricants provide lubrication.

Correct Answer is : FALSE

2. If melting point increases, then the atomic bonds will ______

Correct Answer is : Be destroyed

3. The lubricant should have _____ vapor pressure.

Correct Answer is : Low

4. What is the range of coefficient of friction for solid lubricants?

Correct Answer is : 0.005-0.01

5. What is the thickness of the MoS2 film?

Correct Answer is : 15µm

6. Lubricating oil thickened with metallic soaps or by adding solid forms______

Correct Answer is : grease

7. Stabilized erosion of the fine solid particles in liquid is called_____

Correct Answer is : colloidal dispersion

8. 99% of grease is produced from______

Correct Answer is : petroleum oil

9. The more friction of the greases is due to their high______

Correct Answer is : viscosity

10. Slaked lime solution is mixed with tallow oil with constant stirring to produced_________

Correct Answer is : cup greases

11. Calcium complex grease can be made from_____

Correct Answer is : lime, fatty acid, acetic acid

12. Complex grease fibers are formed by reacting two dissimilar ______ with single_________

Correct Answer is : acids, alkali

13. Lithium soap greases are_______

Correct Answer is : water resistant

14. High mechanical stability is more for________

Correct Answer is : lithium soap greases

15. Sodium base greases can be utilized up to the temperature of______

Correct Answer is : 175oC

16. A good liquid lubricant must possess the property of ___________

Correct Answer is : High boiling point

17. Which of the following is not the liquid lubricant?

Correct Answer is : Grease

18. Castor oil is used for _______

Correct Answer is : Plastic industry

19. Petroleum oils are also called as _________

Correct Answer is : Hydrocarbon oils

20. Petrol captured the market up to the percentage of _____

Correct Answer is : 0.98

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