Which of the following statement is correct regarding pitting corrosion?(a) Adjacent surfaces cathodically protect pits(b) Pits cathodically protect adjacent surfaces(c) Neither pits nor adjacent surfaces protect each other(d) Both pits and adjacent surfaces protect each otherThis question was addressed to me in an interview for job.My question is based upon Eight Forms in chapter Eight Forms of Corrosion of Corrosion Engineering

Which of the following statement is correct regarding pitting corrosio

1.	Which of the following statement is correct regarding pitting corrosion?(a) Adjacent surfaces cathodically protect pits(b) Pits cathodically protect adjacent surfaces(c) Neither pits nor adjacent surfaces protect each other(d) Both pits and adjacent surfaces protect each otherThis question was addressed to me in an interview for job.My question is based upon Eight Forms in chapter Eight Forms of Corrosion of Corrosion Engineering
Answer» The correct answer is (b) Pits cathodically PROTECT adjacent surfaces To EXPLAIN: Pits cathodically protect adjacent surfaces of metal; this is also called as CATHODIC protection. This is due to the AUTOCATALYTIC nature of PITTING corrosion. Hence, pits cathodically protect adjacent surfaces is the correct statement.

Discussion

No Comment Found

Related InterviewSolutions

Which of the following is/are the preventions of erosion-corrosion?(a) Selection of better resistant materials(b) Alteration of the environment(c) Applying protective coatings(d) Selection of better resistant materials, alteration of the environment and applying protective coatingsI had been asked this question during an interview.My question is taken from Eight Forms in chapter Eight Forms of Corrosion of Corrosion Engineering
In which of the following environments that stainless steel will undergo stress-corrosion cracking?(a) Chlorides(b) Caustics(c) Ammonia(d) Chlorides and causticsThe question was posed to me in quiz.The question is from Eight Forms topic in section Eight Forms of Corrosion of Corrosion Engineering
Which of the following is/are the preventions of hydrogen embrittlement?(a) Baking of steels at low temperatures (200°F–300°F)(b) Alloying with nickel or molybdenum reduces susceptibility(c) Practicing proper welding with low hydrogen welding rods(d) Baking of steels at low temperatures, alloying with nickel or molybdenum reduces susceptibility and practicing proper welding with low hydrogen welding rods.I had been asked this question in my homework.I'd like to ask this question from Eight Forms topic in section Eight Forms of Corrosion of Corrosion Engineering
Which of the following is/are the types of hydrogen damage?(a) Hydrogen blistering(b) Hydrogen embrittlement(c) Decarburization(d) Hydrogen blistering, hydrogen embrittlement, and decarburizationThe question was posed to me in a national level competition.My question is from Eight Forms in section Eight Forms of Corrosion of Corrosion Engineering
Which of the following is/are the factors that influence corrosion fatigue?(a) Type of metal(b) Composition of corrosive solution(c) Temperature(d) Type of metal, corrosive solution composition, and temperatureThis question was addressed to me in homework.Question is taken from Eight Forms topic in section Eight Forms of Corrosion of Corrosion Engineering
Which of the following stress-corrosion cracking mechanism is highly acceptable?(a) Dissolution mechanics(b) Mechanical mechanics(c) Both dissolution and mechanical mechanics(d) Hydrogen mechanicsThe question was posed to me in class test.This is a very interesting question from Eight Forms topic in portion Eight Forms of Corrosion of Corrosion Engineering
What is the abbreviation of SCC regarding corrosion?(a) Stress-corrosion cracking(b) Stress-cracking corrosion(c) Stress-corrosion contact(d) Stress-contact corrosionI have been asked this question in an interview for job.My question comes from Eight Forms in chapter Eight Forms of Corrosion of Corrosion Engineering
Which of the following equipment encounters cavitation damage in the service?(a) Hydraulic turbines(b) Ship propellers(c) Pump impellers(d) Hydraulic turbines, ship propellers, and pump impellersI got this question in a job interview.Question is taken from Eight Forms in portion Eight Forms of Corrosion of Corrosion Engineering
Which of the following type of equipment is/are highly prone to erosion-corrosion?(a) In piping arrangements at elbows and bends(b) Measuring devices such as orifice and turbine blades(c) In piping arrangements at straight lines(d) In piping arrangements at elbows and bends and measuring devices such as orifice and turbine bladesThis question was addressed to me in semester exam.My doubt is from Eight Forms in chapter Eight Forms of Corrosion of Corrosion Engineering
What is meant by caustic embrittlement of steel?(a) Failure of cold-worked rivets by a brittle fracture in the presence of ammonia(b) Failure of cold-worked rivets by a brittle fracture in the presence of caustic soda(c) Failure of cold-worked rivets by a brittle fracture in the presence of caustic soda and ammonia(d) Failure of cold-worked rivets by the cup and cone fracture in the presence of caustic sodaThis question was addressed to me in final exam.My question comes from Eight Forms topic in portion Eight Forms of Corrosion of Corrosion Engineering

Discussion

No Comment Found

Related InterviewSolutions

Reply to Comment