Welding Practice Test

Welding Practice Test Take this free welding practice exam to get a sample of the types of questions on an actual welding exam. Subject matter covered in actual AWS and other welding examinations include: Shielded Metal Arc Welding, Flux Cored Arc Welding, Self Shielded and Submerged Arc Welding, the arc welding processes protected by flux, along with the gas shielded processes, such as Gas Tungsten Arc Welding, Gas Metal Arc Welding and Flux Cored Arc Welding-Gas Shielded. Brazing and soldering are also covered, along with common mechanical and thermal cutting processes that will aid in material preparation and enhance welding fit-up issues. To prepare for your welding test, see the Welding Practice Exam Kit with 360 Questions with fully explained answers. Congratulations, You Finished. Scroll down to see answers, your score and more.

1. What is the major function of the coating on an arc welding electrode? a. Acts as a scavenger, removes oxides and impurities b. Influences incomplete penetration c. Liquefies the base metal d. Adds moisture and accelerates the cooling rate

2. Square wave refers to the ____________. a. shape of the filler metal b. shape of the tungsten electrode c. shape of the output power

d. shape of the power source control box

3. Shielding gases are used to protect the molten metal from _______. a. being overheated and cooling to fast b. porosity and brittleness c. heat and distortion d. being too cold and not penetrating

4. Weld backing is used with a process that uses a separate flux and electrode to _______ . a. make the overall weld joint stiffer b. provide more weight to the weldment c. make the material thicker where it is needed d. support the highly fluid weld pool so it will not fall through the joint

5. _________ is the weight of a volume of material compared with an equal volume of water. a. Mass b. Density

c. Specific gravity d. Heft

6. A medium carbon steel has a carbon content of what percentage range? a. 0.05% to 0.15% b. 0.16% to 0.60% c. 0.60% to 1.70% d. 1.70% to 2.15% 7. If a liquid weld pool is at a very high level of energy, at what approximate temperature will the steel begin to solidify? a. 1333 F b. 2780 F c. 3200 F d. 3780 F

8. __________ is a groove melted into the base metal next to the weld toe or weld root and has not been filled in. a. Cracks

b. Craters c. Under fill d. Undercut

9. If the weld does not combine with another weld or the base metal it is referred to as: a. incomplete penetration b. incomplete fusion c. incomplete bonding d. incomplete inclusion

10. To determine if a welder is qualified, the welder must pass a ________________ test. a. WPQR b. WPS c. PQR d. Code

11. Which term best describes the operation where a welder or welding operator has control of a molten weld pool and the weld pool has a side to side motion

that is transverse to the travel direction? a. Oscilllation b. Weaving c. Whipping d. Both a and c

12. A broken surface is being observed. A small pore or inclusion type discontinuity appears as a round bright area. Which term fits this description? a. Nucleation b. Crack c. Spider web d. Fisheye

13. Arc time is: a. the time the arc is on during the arc welding operation. b. the total time the welder is clocked into work. c. the non-arc time. d. the total arc and non-arc time.

14. What is the difference between back and backing welds? a. Equipment used b. Sequence of when the welds are made c. Materials used d. None of the above

15. What NDE process is indicated in the following description? Detects surface discontinuities only. It can also verify fit-up, joint configuration, weld dimensions and profiles. a. PT b. RT c. MT d. VT

16. Penetrant Testing uses a penetrating liquid dye which is applied to a properly prepared surface. The dye is pulled into the discontinuity by _______ action. a. suction b. heating c. cooling

d. capillary

17. Which of the following is an established norm or requirement issued by the federal, state or local government about technical systems? a. Welder Continuity Report b. Standards c. Specification d. Recommended Practices 18. Before welding can be done to an industrial welding standard, the supervisor needs to verify: a. the quality metric. b. the cost metric. c. the safety metric. d. that the welding procedure specifications and welder qualifications are in order. 19. Normal pant and shirt material worn around welding should be of what material? a. Polyester

b. Rayon c. Cotton d. Synthetics

20. What is the minimum oxygen level for a confined space? a. 14% b. 16% c. 19.5% d. 23.5%