Which of the following is not a material used for making an electrode in metal arc welding, for treating stainless steels?(a) Niobium(b) Columbium(c) Titanium(d) PotassiumThe question was posed to me during an online interview.My question is based upon Welding of Various Metals in portion Welding and Related Processes of Casting-Forming-Welding II

Which of the following is not a material used for making an electrode

1.	Which of the following is not a material used for making an electrode in metal arc welding, for treating stainless steels?(a) Niobium(b) Columbium(c) Titanium(d) PotassiumThe question was posed to me during an online interview.My question is based upon Welding of Various Metals in portion Welding and Related Processes of Casting-Forming-Welding II
Answer» CORRECT answer is (d) Potassium The explanation is: STAINLESS steels are best welded using the electric BUTT welding METHOD and then followed by annealing at around 750°C to 800°C. Stainless steels can also be welded using the metal arc welding methods. For this the electrode which is needed is made up of niobium, titanium and columbium. These materials avoid the occurrence of the defect called weld decay.

Discussion

No Comment Found

Related InterviewSolutions

What is the temperature needed for preheating in cast irons?(a) 550°C(b) 600°C(c) 650°C(d) 700°CThis question was posed to me in examination.The above asked question is from Welding of Various Metals in portion Welding and Related Processes of Casting-Forming-Welding II
What is the minimum power supply needed for the working of spot welding process?(a) 10 kVA(b) 14 kVA(c) 6 kVA(d) 22 kVAI have been asked this question by my college professor while I was bunking the class.This interesting question is from Resistance Welding Methods in chapter Welding and Related Processes of Casting-Forming-Welding II
Up to what thickness, can steel be welded using spot welding process?(a) 10 mm(b) 11 mm(c) 12 mm(d) 13 mmI got this question by my school principal while I was bunking the class.This question is from Resistance Welding Methods in division Welding and Related Processes of Casting-Forming-Welding II
Arc welding machine uses only D.C. supply.(a) True(b) FalseThis question was posed to me in final exam.The query is from Arc Welding topic in portion Welding and Related Processes of Casting-Forming-Welding II
What is the flame temperature of methane?(a) 2000°C(b) 1200°C(c) 2700°C(d) 3300°CThis question was posed to me during an online exam.My query is from Oxy-Acetylene Welding in division Welding and Related Processes of Casting-Forming-Welding II
Carburising flame has excess of oxygen supply.(a) True(b) FalseThis question was addressed to me in quiz.My question is taken from Oxy-Acetylene Welding in section Welding and Related Processes of Casting-Forming-Welding II
What is the flame temperature of city gas?(a) 1500°C(b) 1600°C(c) 1700°C(d) 1800°CI got this question during a job interview.Query is from Oxy-Acetylene Welding topic in chapter Welding and Related Processes of Casting-Forming-Welding II
Slag used in fusion welding contains manganese.(a) True(b) FalseI had been asked this question in semester exam.Question is taken from Metallurgy of Weld topic in section Welding and Related Processes of Casting-Forming-Welding II
Carbon steels can be fusion welded.(a) True(b) FalseThe question was asked in a national level competition.This intriguing question comes from Welding of Various Metals topic in portion Welding and Related Processes of Casting-Forming-Welding II
What is the initial oxygen pressure provided through the lance?(a) 1 atm to 2 atm(b) 2 atm to 3 atm(c) 3 atm to 4 atm(d) 4 atm to 5 atmI got this question in an online quiz.I'm obligated to ask this question of Oxygen Cutting topic in portion Welding and Related Processes of Casting-Forming-Welding II

Discussion

No Comment Found

Related InterviewSolutions

Reply to Comment