The only suitable method for hardening the low carbon steel is case hardening. Which of the following is a case hardening process ?

Question: Condensing film co-efficient for steam on horizontal tubes ranges from 5000 to 15000 Kcal/hr.m2 .°C. Condensation of vapor is carried out inside the tube in a shell and tube heat exchanger, when the
[A].

higher condensing film co-efficient is desired.

[B].

condensate is corrosive in nature.

[C].

lower pressure drop through the exchanger is desired.

[D].

temperature of the incoming vapor is very high.

Answer: Option B

Explanation:

No answer description available for this question.