Q. At what temperature is the workpiece tempered in carbonitriding process?

View solution

Q. What is the case depth obtained in the cyaniding process?

View solution

Q. What is the hardness achieved in the carbonitriding process?

View solution

Q. What are the applications of nitriding?

View solution

Q. Nitriding steels are tempered at about ________

View solution

Q. Flame hardening can only be performed on steels with a minimum of ______ carbon.

View solution

Q. How is the heating of surface done in flame hardening technique?

View solution

Q. Flame hardening technique is suitable for ____________

View solution

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