Q. Which of the following prevention methods that are usually employed on a beam of offshore drilling?

View solution

Q. Which of the following inhibitor has been effective for internal corrosion domestic fuel oil tanks?

View solution

Q. Which of the following impurities that causes corrosion difficulties in refinery operations?

View solution

Q. Water acts as an electrolyte and causes corrosion as it tends to hydrolyze chlorides and other materials to form an acidic environment.

View solution

Q. Which of the following is/are the desalting methods in the petroleum industry?

View solution

Q. Ammonia is used to control the pH of the water and to reduce chloride acidity in the process stream.

View solution

Q. Which of the chemical is/are added for the removal of hydrogen sulfide and neutralization?

View solution

Q. Which of the following impurity that causes rapid intergranular stress corrosion cracking of sensitized austenitic stainless steels in refinery operations?

View solution

Q. Which of the following metals is/are usually used for heat exchanger tubes carrying water?

View solution

Q. Which of the following element is the most beneficial alloying element in steel for resistance to sulfur compounds?

View solution

Q. Biological corrosion is a deterioration of a metal by the corrosion process that occurs directly or indirectly due to the activity of living organisms.

View solution

Q. Which of the following environments in which the biological activity may influence corrosion?

View solution

Q. Which of the following is/are the processes that affect the corrosion behavior of metals by biological activity?

View solution

Q. Which of the following component is taken into account to classify aerobic and anaerobic organisms?

View solution

Q. Which of the following organisms are regarded as microorganisms?

View solution

Q. Which of the following anaerobic bacteria that influence the corrosion behavior of buried steel structures?

View solution

Q. Thiobacillusthiooxidans are the type of aerobic bacteria that are capable of oxidizing sulfur-bearing compounds to sulfuric acid.

View solution

Q. Which of the following coatings is/are used for the prevention of microbiological corrosion in buried steel?

View solution

Q. Which of the following is/are the preventions of microbiological corrosion in soil?

View solution

Q. Which of the following acids are produced by microorganisms such as fungus and mold?

View solution