Protective Coatings Interview Questions | Snaprecruit.com
Protective Coatings Interview Questions | Snaprecruit.com
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Protective Coatings interview questions
Protective Coatings interview questions
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Total Questions: 10
1. The protective coatings are used to ___________
A. Corrode the metal
B. Prevent from corrosion
C. Increase the corrosion
D. Slightly increase the corrosion
Show Correct Answer
Correct Answer is :
Prevent from corrosion
2. The oxidation resistance is given by the protective coatings.
A. TRUE
B. FALSE
C.
D.
Show Correct Answer
Correct Answer is :
TRUE
3. In sand blasting, the atmospheric pressure is about __________
A. 25-100atm
B. 50-100atm
C. 70-100atm
D. 100-250atm
Show Correct Answer
Correct Answer is :
25-100atm
4. The cleaning methods before applying the protective coating are of _________ types.
A. 3
B. 4
C. 5
D. 6
Show Correct Answer
Correct Answer is :
6
5. In anodic coatings, the coating metals possess __________ reduction potential than base metal.
A. Higher
B. Lower
C. 0
D. Cannot be said
Show Correct Answer
Correct Answer is :
Lower
6. Tinning is the example of __________
A. Anodic coatings
B. Cathodic coatings
C. Neither anode nor cathode
D. Both anode and cathode
Show Correct Answer
Correct Answer is :
Cathodic coatings
7. During the sand blasting process, the workers are affected by the disease called _________
A. Silicosis
B. Chicken guinea
C. Blue baby syndrome
D. Flourosis
Show Correct Answer
Correct Answer is :
Silicosis
8. In pickling and etching _________ acids are used.
A. Sulphuric acid
B. Hypo chlorous acid
C. Phosphoric acid
D. Phosphorous acid
Show Correct Answer
Correct Answer is :
Sulphuric acid
9. The old paint coating cannot be removed by __________
A. Soaps
B. Caustic soda
C. Trisodium phosphate
D. Sulphuric acid
Show Correct Answer
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 ____________
A. Tinning
B. Galvanisation
C. Metal cladding
D. Electroplating
Show Correct Answer
Correct Answer is :
Galvanisation
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