_____________ is the process of coating the surface of steel with aluminium oxide, thereby imparting it increased resistance to corrosion & oxidation upto a temperature of 700°C ?
Correct answer: C. Calorising
- A. Veneering
- B. Galvanising
- C. Calorising
- D. Electroplating
Explanation
Calorising is a thermochemical treatment in which aluminium diffuses into the steel surface and forms a protective alumina film during service. This coating gives high resistance to oxidation and corrosion at elevated temperature.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
Practise Chemical Process Principles
2,710 free Chemical Process Principles MCQs from Chemical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemical Engineering questions like this
Chemical Engineering is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Chemical Process Principles questions
Normalising of a casting does not__________________?
Limestone addition in the blast furnace is done to flux _______________ present in the raw materials?
In case of brasses, with decreasing zinc percentage and increasing copper percentage, its _____________ increases ?
Percentage of argon (by volume) in dry atmospheric air is about________________?
Hydrogen can be ________________?
Electrometallurgical methods of metal extraction is normally used for those metals___________________?