Protective Coatings interview questions
Protective Coatings interview questions
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Total Questions: 10
1. The protective coatings are used to ___________
Correct Answer is : Prevent from corrosion
2. The oxidation resistance is given by the protective coatings.
Correct Answer is : TRUE
3. In sand blasting, the atmospheric pressure is about __________
Correct Answer is : 25-100atm
4. The cleaning methods before applying the protective coating are of _________ types.
Correct Answer is : 6
5. In anodic coatings, the coating metals possess __________ reduction potential than base metal.
Correct Answer is : Lower
6. Tinning is the example of __________
Correct Answer is : Cathodic coatings
7. During the sand blasting process, the workers are affected by the disease called _________
Correct Answer is : Silicosis
8. In pickling and etching _________ acids are used.
Correct Answer is : Sulphuric acid
9. The old paint coating cannot be removed by __________
Correct Answer is : Sulphuric acid
10. The process of coating iron or steel sheet with a thin coat of zinc to prevent iron from rusting is called ____________
Correct Answer is : Galvanisation
