58 Welder Interview Questions

welder interview questions Skilled Welder Most important Short terms

58 Welder Interview Questions in Your Job Interview You can expand upon your most important skills for the job. skilled welder most important terms

Welding The following are common terms in welding

1. Abrasive – A material, such as sand, silicon, or crushed stone, used for surface cleaning.
2. Acetylene Gas – A chemical combination of two elements: carbon and hydrogen.
3. Alloy – A metal that is made by mixing two or more metals, or metal, and another substance.
4. Alternating Current (AC) – This is an electrical current in which magnitude and direction change in cycles, as opposed to direct current, in which direction is constant.
5. Arc Welding (Shielded Metal Arc Welding) – A welding process where similar materials are joined with a heating process caused by an electric arc

Argon- A chemical element designated by the symbol Ar. Argon has atomic number 18 and is the third element in group 18 of the periodic table (noble gases).

Brazing- A process where metals are joined by using a filler metal that melts at a temperature above 450ºC.
8. Butt Joint (Butt Weld) – A joint (or weld) where the two pieces being connected come directly together in the same plane.
9. Buzz Box – Another term for a general-purpose arc welder. The name is derived from the sound made when the welder is running. 6
10. Consumable & non-consumable electrodes – Consumable electrodes provide a path for the current. They also supply filler metal to the joint

Cutting Tip- The part of an oxygen torch that directs the gas flow.
12. Cutting Torch – The device used in oxygen cutting to control and direct the flow of the gasses used for cutting and heating metal.
13. Cylinder – A container to store and transport compressed gas.
14. Defective Weld – A weld with one or more of the following defects: Porosity, undercut, slag inclusion, and improper weld size.
15. Direct Current (DC) – Or “continuous current,” is considered the constant flow of electrons in a single direction from low to high potential.
16. Down Hand Weld – A vertical weld where the welder starts at the top and works downward.
17. Edge Weld – A weld where the edges of two pieces come together.
18. Electrode (Arc Welding) – A rod made up of filler metal with a coating on it designed to aid and protect the bead during the welding process.
19. Electrode Holder – The “handle” portion of the arc welder that holds the electrode in place.
20. Face Shield (Helmet) – A safety device worn over the face to protect the eyes and face from the arc, sparks, and molten metal.

21. Ferrous- Containing or relating to iron.

22. Fillet Weld- A weld joining two pieces of metal that are more or less perpendicular to each other.
23. Filler metal – This is a metal added in the making of a joint through welding, brazing, or soldering. Various types of filler metals exist.
24. Fixture – A tool or device used to hold pieces in place for welding.
25. Flat Weld – A weld where the pieces being joined come together horizontally in front of and below the welder.
26. Flux – A substance that facilitates soldering, brazing, and welding by chemically cleaning the metals to be joined.
27. Forge – A device used to heat metal for forming and bending. (Blacksmithing)
28. Fuel Gases – Gases mixed with oxygen in heating and cutting operations.
29. Gas Tungsten Arc Welding (GTAW) or (TIG) – Commonly known as tungsten inert
30. gas (TIG) welding; an arc welding process that uses a non-consumable tungsten electrode to produce the weld.

31. Hand Shield- Similar to a Face Shield or Helmet, but held in front of the face rather than worn.
32. Iron – A base element that is the primary substance in the makeup of steel, cast iron, and wrought iron.
33. Inert gas/Shielding gas – A gas that does not normally combine chemically with materials.

34. Lap Joint- A joint where two pieces of metal lap over each other, allowing a bead to be placed between the edge of one piece and the face of the other. 8
35. MIG Welding (Metal Inert Gas) – Also known as wire-feed welding, although it is possible to do wire-feed welding without inert gas.

36.Mild Steel- Steel with less than 0.15% carbon. (Also called low carbon steel).
37. Out-Of-Position Weld – Any weld where the work is not flat in front of the welder.
38. Overhead Weld – An inverted weld where the pieces being joined are above the welder.
39. Oxyfuel – Pure oxygen combined with gas
40. Plasma – A gas that has been heated to the point where it will conduct electricity.

41. Plasma Cutting- A cutting process where the metal is heated to the melting point by an arc through the plasma and then removed by the pressure of the gas as directed by the nozzle. CNC (computer numeric control) plasma cutters are used for the precise cutting of complex patterns in the metal.
42. Polarity – The polarity of a machine refers to the direction of current flow.
43. Radiation – Energy from heat or light you cannot see.
44. Shielding Gas – –See Inert gas.
45. Slag Inclusion – Non-metallic material trapped in a weld.
46. Soldering – A method of joining metal parts using a filler material (solder) that has a melting temperature below 450°C (842°F).
47. Spot Weld – A weld between two overlapping pieces of material; normally used for sheet metal. 9
48. Tack Weld – A small weld used to hold pieces of an assembly in place before the final (continuous) welding.
49. TIG Welding (Tungsten Inert Gas) – A welding process where an inert gas protects the molten metal from the atmosphere to produce a high-quality weld.
50. Tungsten – A non-consumable material used in TIG welding to carry current to the weld puddle. (very hard, heavy, steel-grey-to-white transition metal; W in the periodic table.)

Up Hand Weld- A vertical weld where the welder starts at the bottom and works upward.
52. Ventilate – To cause fresh air to enter and move around an enclosed space
53. Weave Bead – A welding pattern often used in butt welds where the welder moves the arc back and forth across the joint while also moving along it.
54. Weld – To join two pieces of metal together permanently by melting the parts that touch.
55. Welder (noun) – A person whose job is welding.
56. Welding Power Supply – A device that provides an electrical current to perform welding.
57. Welding Rod – A means of delivering filler metal to the weld.

58. Voltage (V)- This is the pressure required to move the electric current

58 Welder Interview Questions