Related InterviewSolutions

• What are the principal applications of Duriron?(a) Cast forms of pumps, valves, heat exchangers for chemical plant(b) In manufacturing and handling of nitric acid(c) In the ammonia oxidation process(d) Cast forms of pumps, valves, heat exchangers for chemical plant, in manufacturing and handling of nitric acid and ammonia oxidation processI got this question in homework.My doubt is from Mineral Acids in section Mineral Acids of Corrosion Engineering
• Which of the following acid is produced relatively higher than other acids?(a) Nitric acid(b) Sulfuric acid(c) Phosphoric acid(d) Hydrofluoric acidThis question was addressed to me during an online exam.This question is from Mineral Acids topic in chapter Mineral Acids of Corrosion Engineering
• Which of the following is/are the class2 corrosion-resistant materials in nitric acid?(a) Aluminum and Stainless steels(b) Aluminum, Hastelloy, and Inconel(c) Hastelloy and Inconel(d) Hastelloy and TitaniumThe question was posed to me in examination.Query is from Mineral Acids topic in portion Mineral Acids of Corrosion Engineering
• Which of the following metal is used for hydrochloric acid to avoid contamination?(a) Titanium(b) Tantalum(c) Molybdenum(d) CupronickelsThe question was posed to me in an internship interview.I'd like to ask this question from Mineral Acids in section Mineral Acids of Corrosion Engineering
• Which of the following concentration of sulfuric acid in which the corrosion rate of steel is minimum?(a) Less than 30%(b) Greater than 70%(c) 30% – 70%(d) above 110%I have been asked this question in a job interview.The origin of the question is Mineral Acids topic in chapter Mineral Acids of Corrosion Engineering
• Which of the following materials exhibits poor corrosion resistance to phosphoric acid?(a) Aluminum and brass(b) Aluminum, brass, steel, cast iron, ferritic and martensitic stainless steels(c) Steel and cast iron(d) Ferritic and martensitic stainless steelsThis question was posed to me in examination.I want to ask this question from Mineral Acids in division Mineral Acids of Corrosion Engineering
• Which of the following material is/are primarily used for hydrofluoric acid?(a) High-silicon cast iron(b) Magnesium(c) Aluminum(d) Glass and stonewareThe question was asked by my college director while I was bunking the class.Question is taken from Mineral Acids in section Mineral Acids of Corrosion Engineering
• Which of the following is/are the factors that affect the corrosion resistance of steel in concentrated sulfuric acid?(a) High velocity(b) Temperature of acid(c) Aeration(d) High velocity, temperature, and aerationThis question was posed to me in an international level competition.My question comes from Mineral Acids topic in chapter Mineral Acids of Corrosion Engineering
• Which of the following statements is/are true regarding the contact process?(a) Conversion of sulfur dioxide to sulfur trioxide takes place(b) Vanadium oxide is used as a catalyst(c) It accounts for 70% of the world’s production(d) Conversion of sulfur dioxide to sulfur trioxide takes place in the presence of vanadium catalyst and it accounts for 70% world’s productionI got this question by my college director while I was bunking the class.This key question is from Mineral Acids in section Mineral Acids of Corrosion Engineering
• Which of the following metals will have a high influence on aeration and oxidizing agents in hydrochloric acid?(a) Copper and its alloys(b) Nickel and its alloys(c) Nickel-molybdenum alloys, copper, nickel and their alloys(d) Nickel-molybdenum alloysThis question was addressed to me at a job interview.My enquiry is from Mineral Acids topic in division Mineral Acids of Corrosion Engineering