Interview question based on skill :
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Total Questions: 20
1. Select the incorrect statement from the following option.
Correct Answer is : Lubricant enhance corrosion
2. The viscosity of petroleum oil for hydraulic lifts is
Correct Answer is : Low
3. The science of friction, lubrication and wear is called
Correct Answer is : Tribology
4. On increasing the lubrication, the efficiency of the machine
Correct Answer is : Increases
5. The stearate ion has a ________ carbons long hydrocarbon chain.
Correct Answer is : 17
6. How many types of lubricants are there on basis of the shear strength?
Correct Answer is : 4
7. In solid lubricants, the _____ will be low.
Correct Answer is : coefficient of friction
8. One of the advantages of the solid lubricants is ______
Correct Answer is : permit equipment is simple
9. Which of the following are the disadvantages of solid lubricants?
Correct Answer is : poor heat dissipation
10. Powder of a solid lubricant delivered to the ______
Correct Answer is : rubbing area
11. The crystal lattice of the inorganic lubricants has a _____ forming thin parallel planes.
Correct Answer is : hexagonal rings
12. Which of the following is not the inorganic lubricant?
Correct Answer is : Pb
13. Soft metals possess lubrication due to _____
Correct Answer is : high plasticity
14. Coating and overlays will be done by using _________
Correct Answer is : soft metal
15. Soft metal lubricants are produced by using ______
Correct Answer is : thermal spraying
16. The molecular structure of the organic lubricants consists of _______
Correct Answer is : long chain
17. Soaps are metal salts of _________
Correct Answer is : fatty acids
18. Soaps are prepared by chemical treating of _____ by strong alkaline solutions.
Correct Answer is : Oils and fats
19. Mobility of the solid lubricants on the adsorbents promotes _____
Correct Answer is : Self-healing
20. Insulators making rubbing contact require _______
Correct Answer is : Low conductivity
