Q. Which of the following is an application for flame hardening?

View solution

Q. How does induction hardening differ from flame hardening?

View solution

Q. What is the frequency used for depths of 2 to 3 mm in induction hardening?

View solution

Q. Which of the following is true for induction hardening?

View solution

Q. What is the hardness achieved by flame hardening?

View solution

Q. ___________ is a method of obtaining diverse properties by varying thermal histories of various regions.

View solution

Q. The welding process in which no filler metal is used is classified as ___________

View solution

Q. The pressure of acetylene in welding torch for oxy-acetylene welding is maintained at _________

View solution

Q. What is the color of an acetylene cylinder in case of gas welding?

View solution

Q. What is the temperature of arc needed for arc welding?

View solution

Q. A small depression formed in the parent metal is called _________

View solution

Q. What is the level of efficiency of a transformer as a welding machine?

View solution

Q. Which electrode material is used for welding of wrought iron?

View solution

Q. Which electrode material is used for welding of carbon steel?

View solution

Q. ___________ is used as an inert gas for metal inert gas welding.

View solution

Q. Which electrode is used in the process of TIG welding?

View solution

Q. The heat released in plasma arc welding is about ____________

View solution

Q. The liquid temperature of the filler metal used in brazing is _________

View solution

Q. Copper and aluminum can be joined by brazing when _________ alloy is used.

View solution

Q. Which of the following filler metals is used in the electrical industry?

View solution