ISRO Mechanical & Aerospace 2009 - Question 53

All ISRO Mechanical & Aerospace papers | ISRO Mechanical & Aerospace 2009

Following gases are used in tungsten inert gas welding

  • A. CO2 and H2
  • B. Argon and neon
  • C. Argon and helium
  • D. Helium and neon

Answer: C. Argon and helium

Explanation: Inert gases like Argon and Helium are used to shield the weld pool in TIG welding.

| | All questions of ISRO Mechanical & Aerospace 2009