A gas is termed as non-toxic, if its maximum permissible concentration (TLV) ranges from __________ ppm.

Question: Ageing of steel refers to the
[A].

degradation of steel by corrosion.

[B].

failure of steel structure by overstress-ing.

[C].

return of sharp yield point in temper rolled low carbon sheet after a period of time.

[D].

decarburisation of steel by overheating.

Answer: Option C

Explanation:

No answer description available for this question.