Welding Level 2, Module 4 Exam 2025 Questions & Answers with 100% Correct Answers | Verified

Quenching medium- and high-carbon steels produces a hard and brittle ____________________. - crystalline structure ____________________ and castings have a high heat absorption capacity - Heavy plate Low carbon steel must be preheated to ____________________. - above 70 degrees F When using an open-top preheater, the object to be heated is mounted on the support structure directly ____________________ the gas burners. - above In induction heating, an alternating ____________________ is generated within the metal body being heated. - magnetic field Infrared thermometers are also called ____________________ thermometers. - non-contact ____________________ temperature control is used to maintain the temperature of the weld zone during welding. - Interpass The cooling rate is usually ____________________ per hour. - 300 to 500 degrees ____________________ is a process in which heat is applied to remove strains and reduce grain size. - Normalizing Parts that have been hardened using the ___________________ may look brighter in appearance. - cold forming process