ORACCA - Brazing Certification 2026/2027 Exam Questions and Corresponding Answers with Surety of 100% Pass Mark

ORACCA - Brazing Certification 2026/2027 Exam Questions and Corresponding Answers with Surety of 100% Pass Mark Neutral Flame - ANSWER -A gas flame which is neither oxidizing nor reducing Inert Gas - ANSWER -A gas that normally does not react chemically with materials Peel Test - ANSWER -A destructive method of inspection which mechanically separates a lap joint by peeling Preheating - ANSWER -The application of heat to the base metal substrate to attain and maintain preheat temperature immediately before brazing or soldering Procedure Qualification - ANSWER -The demonstration that a brazed joint or a soldered joint made by a specific procedure can meet prescribed standards Quench - ANSWER -Accelerated cooling, frequently in liquid oil or water Porosity - ANSWER -Cavity type discontinuities formed by gas entrapment during solidification Brazing - ANSWER -A metal joining operation where the base metal is not melted during the bonding operation, capillary action draws the filler alloy into the joint and the brazing alloy is a non-ferrous metal of a composition other than that of the metals being joined Soldering - ANSWER -A group of processes producing coalescence of materials by heating them to temperatures below 800 degrees F in the presence of filler metal Base Material - ANSWER -The material that is cut and welded, brazed or soldered Braze - ANSWER -A weld produced by heating an assembly to the brazing temperature using a filler metal Liquidus - ANSWER -The lowest temperature at which a metal or alloy is completely liquid Brazed joints classifications - ANSWER -Class A joints are those subjected to high or cyclical stresses and the failure of which could result in risk to persons or property, as well as significant operational failure. Class B joints are those which have a cumulative void of 25% or less in the filler alloy and the failure of which could result in risk to persons or property, as well as significant operational failure Annealing - ANSWER -A process by which metal is softened by high temperatures Solidus - ANSWER -The highest temperature at which a material is completely solid Brazing Temperature - ANSWER -The temperature to which the base material is heated to enable the filler metal to wet the base material and form a brazed joint Wetting - ANSWER -The phenomenon whereby a liquid filler metal spreads and adheres in a thin continuous layer on a solid base metal Capillary Action - ANSWER -The force by which liquid, in contact with a solid, is distributed between closely fitted surfaces of the joint to be brazed Carburizing Flame - ANSWER -A gas flame in which there is excess fuel gas, resulting in a carbon-rich (reducing) zone extending around and beyond the cone