How to weld - Test
  • 1. Which welding process uses a non-consumable tungsten electrode?
A) GMAW (MIG)
B) FCAW (Flux-Cored)
C) GTAW (TIG)
D) SMAW (Stick)
  • 2. What is the purpose of shielding gas in welding?
A) To cool the weld faster
B) To add filler metal to the weld
C) To increase the welding voltage
D) To protect the weld from atmospheric contamination
  • 3. Which safety equipment is essential for welding?
A) No gloves
B) Short-sleeved shirt
C) Welding helmet
D) Sandals
  • 4. What does 'SMAW' stand for?
A) Semi-Metal Arc Welding
B) Submerged Metal Arc Welding
C) Shielded Metal Arc Welding
D) Solid Metal Arc Welding
  • 5. What is 'undercut' in welding?
A) Excessive weld metal on the surface
B) A weld that is too small
C) A groove melted into the base metal next to the weld
D) Lack of fusion between weld and base metal
  • 6. What type of current is used in SMAW (Stick) welding?
A) Only DCEP
B) Only AC
C) AC or DC
D) Only DCEN
  • 7. What does 'GMAW' stand for?
A) Guided Metal Arc Welding
B) Gas Metal Arc Welding
C) Ground Metal Arc Welding
D) Gas Mixture Arc Welding
  • 8. What is 'slag'?
A) The shielding gas used in welding
B) The electrical ground connection
C) A byproduct of some welding processes that needs to be removed
D) The filler metal used in welding
  • 9. Which welding process typically uses a constant voltage power source?
A) GTAW (TIG)
B) SMAW (Stick)
C) GMAW (MIG)
D) All of the above
  • 10. What is 'porosity' in welding?
A) Gas pockets in the weld metal
B) Excessive penetration
C) Incomplete fusion
D) Cracks in the weld metal
  • 11. What does 'GTAW' stand for?
A) Guided Tungsten Arc Welding
B) Ground Tungsten Arc Welding
C) Gas Tungsten Arc Welding
D) Gas Torch Arc Welding
  • 12. Which gas is commonly used as a shielding gas in GTAW?
A) Argon
B) Carbon Dioxide
C) Nitrogen
D) Oxygen
  • 13. What is the function of a welding regulator?
A) To adjust the welding voltage
B) To hold the welding electrode
C) To control the flow of shielding gas
D) To cool the welding machine
  • 14. What is 'penetration' in welding?
A) The depth to which the weld metal fuses into the base metal
B) The angle of the welding electrode
C) The height of the weld bead
D) The width of the weld bead
  • 15. Which electrode is commonly used for SMAW (Stick) welding of mild steel?
A) Copper
B) Aluminum
C) Pure Tungsten
D) E6010 or E7018
  • 16. What is the purpose of preheating metal before welding?
A) To increase the welding speed
B) To make the metal easier to cut
C) To eliminate the need for shielding gas
D) To reduce the risk of cracking
  • 17. What is 'DCEP' polarity?
A) Alternating Current Electrode Positive
B) Direct Current Electrode Negative
C) Direct Current Electrode Positive
D) Alternating Current Electrode Negative
  • 18. What is 'lack of fusion'?
A) A weld that is too large
B) Excessive penetration
C) Failure of the weld metal to fuse properly with the base metal
D) A weld that is too small
  • 19. What does 'FCAW' stand for?
A) Flux Covered Arc Welding
B) Fused Core Arc Welding
C) Filament Core Arc Welding
D) Flux Cored Arc Welding
  • 20. Which type of welding joint is formed when two pieces of metal are placed edge to edge?
A) Lap Joint
B) T-Joint
C) Butt Joint
D) Corner Joint
  • 21. What is 'spatter' in welding?
A) Small droplets of molten metal expelled during welding
B) The grinding wheel used to clean welds
C) The shielding gas used in welding
D) The filler metal used in welding
  • 22. Why is proper ventilation important during welding?
A) To prevent the weld from cooling too quickly
B) To cool the welding machine
C) To remove harmful fumes and gases
D) To improve visibility
  • 23. What is the purpose of post-weld heat treatment?
A) To increase the welding speed
B) To clean the weld
C) To relieve stress in the weld
D) To add filler metal to the weld
  • 24. What is 'DCEP' commonly used for in SMAW?
A) Welding thin materials.
B) All welding applications.
C) Welding aluminum.
D) Welding with some types of electrodes for deeper penetration.
  • 25. Which material is best suited for GTAW (TIG) welding due to its precision?
A) Mild Steel
B) Wood
C) Aluminum
D) Cast Iron
  • 26. What is the purpose of weaving the welding electrode?
A) To speed up the welding process.
B) To make the weld look nicer.
C) To reduce the heat input.
D) To widen the weld bead and improve fusion.
  • 27. What is a common cause of weld cracking?
A) High voltage.
B) Rapid cooling.
C) Using the wrong shielding gas.
D) Slow travel speed.
  • 28. Which welding process is generally considered the fastest for welding thick steel?
A) GTAW (TIG)
B) Submerged Arc Welding (SAW)
C) Oxy-Acetylene Welding
D) SMAW (Stick)
  • 29. What type of fire extinguisher is best for welding?
A) D
B) ABC
C) B
D) A
Created with That Quiz — the math test generation site with resources for other subject areas.