Related InterviewSolutions

• Metals that follow linear oxidation kinetics at low temperatures tend to oxidize catastrophicallyat high temperatures.(a) True(b) FalseThis question was addressed to me during an interview.This key question is from High Temperature Materials in chapter High Temperature Corrosion of Corrosion Engineering
• Which of the following metal(s) produces metal oxide at a metal-scale interface?(a) Titanium(b) Niobium(c) Zirconium(d) Titanium, Niobium, and ZirconiumI had been asked this question at a job interview.My question is taken from High-Temperature Corrosion topic in section High Temperature Corrosion of Corrosion Engineering
• Which of the following is/are true regarding internal corrosion?(a) Corrosion products precipitate in the metal matrix(b) Corrosion products precipitate in the metal matrix and metals such as Fe, Ni, and Co are highly prone to internal corrosion(c) Corrosion occurs on external surfaces of metals(d) It is due to the stable corrosion products of base metalsI had been asked this question in exam.Origin of the question is High Temperature Materials topic in division High Temperature Corrosion of Corrosion Engineering
• Which of the following is/are true regarding stress rupture?(a) The stress required to cause a rupture in a predetermined time at a constant temperature(b) It is important in short-term high-temperature applications(c) Stress rupture is an important mechanical property for gas turbine or rocket engines(d) The stress required to cause a rupture in short-term high-temperature applications at a predetermined time is known as stress rupture and it is an important mechanical property for gas turbines and rocket enginesI have been asked this question by my college director while I was bunking the class.My question comes from High Temperature Materials topic in chapter High Temperature Corrosion of Corrosion Engineering
• What are the types of oxidation rate laws?(a) Linear and parabolic law(b) Cubic and logarithmic law(c) Linear, parabolic and cubic law(d) Linear, parabolic, cubic and logarithmic lawThe question was asked in an international level competition.This key question is from High-Temperature Corrosion topic in chapter High Temperature Corrosion of Corrosion Engineering
• Which of the following is/are the n-type semiconducting oxides?(a) CdO2(b) TiO2(c) Al2O3, CdO2, and TiO2(d) CoOThe question was posed to me in exam.My enquiry is from High-Temperature Corrosion topic in section High Temperature Corrosion of Corrosion Engineering
• Which of the following nickel-based alloys is/are superalloys?(a) Hastelloy C-276(b) Inconel 718(c) Hastelloy C-276, Inconel 718 and Hastelloy HX(d) Hastelloy HXThis question was posed to me in an online interview.Question is from High Temperature Materials in chapter High Temperature Corrosion of Corrosion Engineering
• Which of the following metal doesn’t follow linear oxidation law?(a) Sodium(b) Aluminum(c) Niobium(d) PotassiumI got this question by my college professor while I was bunking the class.Question is from High-Temperature Corrosion in portion High Temperature Corrosion of Corrosion Engineering
• The diffusion of either cation or oxygen ions usually controls the reaction rate of high-temperature metallic oxidation.(a) True(b) FalseI got this question in class test.My enquiry is from High-Temperature Corrosion topic in section High Temperature Corrosion of Corrosion Engineering
• Which of the following mechanical properties is/are important in structural applications of metals?(a) Tensile strength(b) Yield strength(c) Ductility and Elasticity(d) Tensile strength, Yield strength, Ductility, and Fracture toughnessThis question was posed to me in unit test.This intriguing question originated from High Temperature Materials topic in division High Temperature Corrosion of Corrosion Engineering