12-11-25 Welding Midterm Review 2025
  • 1. What is the base metal?
A) The shielding gas makes sparks
B) The weld bead
C) The flux coating
D) The metal to be welded
  • 2. What is an arc?
A) Flow of electricity through a gaseous space or air gap
B) A type of electrode
C) Light from welding
D) A joint type that lets light fly around everywhere
  • 3. What is arc length?
A) Length of the weld
B) The distance from the electrode to the weld pool
C) Length of the rod
D) The distance from the gap between plates and the clamp wire
  • 4. What is undercut?
A) A grove melted into the base metal that is a misaligned joint
B) A surface crack
C) Extra filler metal
D) A groove melted into base metal left unfilled
  • 5. What is a crater?
A) A depression in the face of the weld
B) A buildup of slag in the face of the weld
C) A porosity pocket in the face of the weld
D) A melted rod tip in the face of the weld
  • 6. What is the axis of weld?
A) Imaginary line through weld toe
B) Imaginary line through center of weld metal
C) Imaginary line through top of the bead
D) Imaginary line through HAZ boundary
  • 7. What is spatter?
A) Metal particles expelled that do not form part of the weld
B) Gas bubbles expelled that do not form part of the weld
C) Falling flux expelled that do not form part of the weld
D) Arc blow expelled that do not form part of the weld
  • 8. What is slag inclusion?
A) Hot cracks trapped in the weld pool at the end
B) Steel trapped in slag
C) Non-metallic material trapped in weld
D) Undercut failure
  • 9. What is a joint?
A) Location where two or more members are joined
B) a welding defect
C) filler metal
D) The end of the metal piece that is welded first.
  • 10. What is a crater crack?
A) A centerline crack
B) A crack in the crater of a weld bead
C) A stress fracture formed cause metal was too clean
D) A cold shut
  • 11. What is ductility
A) Ability to deform without failure
B) Ability to stay magnetized
C) Ability to remain cold.
D) Ability to resist rust
  • 12. What is duty cycle?
A) Percentage of time welders operate at rated output
B) Arc stability rating
C) Electrode burn rate is working nonstop
D) Machine lifespan over a 10 min period
  • 13. What is filler metal?
A) Metal added to make a welded joint
B) Distance fusion extends into base metal
C) Flux coating
D) Metal base plate
  • 14. What is depth of fusion?
A) Distance bead width extends
B) Rod penetration
C) Distance fusion extends into base metal
D) Weld height
  • 15. What is penetration?
A) Bead surface depth
B) Slag depth
C) Arc reach
D) Extent weld metal combines with base metal
  • 16. What is deposition rate?
A) Weight of metal deposited per unit time
B) Length welded per hour
C) Amount of slag produced
D) Heat generated
  • 17. What does SMAW stand for?
A) Shielded Mechanical Arc Welding
B) Stick Metal Arc Work
C) Solid Metal Arc Welding
D) Shielded Metal Arc Welding
  • 18. What is SMAW?
A) Uses heat of an arc between covered electrode and the work
B) Uses tungsten electrode
C) Uses shielding gas
D) Purely mechanical process
  • 19. Advantage of SMAW?
A) Portable and inexpensive
B) No slag
C) Fully automated
D) High speed
  • 20. Disadvantage of SMAW?
A) Requires gas bottles
B) Cannot weld steel
C) It’s slow
D) Only works indoors
  • 21. 7018 can use:
A) Neither
B) AC or DC
C) AC only
D) DC only
  • 22. What polarity do we weld with?
A) No polarity
B) Straight polarity
C) Reverse polarity
D) Alternating ground
  • 23. Reverse polarity:
A) Ground floats
B) Electrode is positive, ground negative
C) Electrode negative
D) No polarity exists
  • 24. Two safety points:
A) Always weld outside use sitka gloves
B) Avoid using gloves never safety glasses
C) Proper ventilation and protective clothing
D) Use small rods and low heat
  • 25. SMAW electrode:
A) Carbon rod
B) MIG wire
C) Consumable electrode covered with flux
D) TIG tungsten
  • 26. Strength of 7018 rod:
A) 70k psi
B) 18k psi
C) 40k psi
D) 120k psi
  • 27. Meaning of 3rd digit in 7018:
A) Coating type
B) Positive polarity rod
C) Rod length
D) Welding position
  • 28. Meaning of 4th digit in 7018:
A) Diameter
B) Composition of rod
C) Strength
D) Arc length
  • 29. Four rod groups:
A) Soft rods, hard rods, hot rods, cold rods
B) Inert, reactive, passive, active
C) High carbon, low carbon, stainless, alloy
D) Celluosic, Rutile, Basic/low Hydrogen, Iron Powder
  • 30. DCEP:
A) Dual Current Electrode Phase
B) Direct Current Electrode Positive
C) Direct Current Elevated Pressure
D) Direct Coil Energy Pulse
  • 31. Why put rods in oven?
A) heat for penetration
B) sterilize
C) Reduce moisture
D) Prevent Bending
  • 32. Minimum oven temperature?
A) 250°F
B) 100°F
C) 500°F
D) 175°F
  • 33. E stands for:
A) Earth
B) Electrode
C) Energy
D) Edge
  • 34. Rod lengths:
A) 1–2 feet
B) 9–18 inches
C) 3–6 inches
D) 20–30 inches
  • 35. MR or R:
A) Moisture resistant
B) Metal rod
C) Medium rated
D) Machine ready
  • 36. Base metal we use:
A) Aluminum
B) Cast iron
C) A36 mild steel
D) Stainless steel
  • 37. Light produced in welding:
A) Green infrared
B) Blue spectrum only
C) X‑ray emissions
D) Electro violet and ultra red light
  • 38. Five joint types:
A) Lap, butt, edge, corner, T-joint
B) Curve, twist, bend, fold, lock
C) Root, face, toe, leg, web
D) Arc, gas, flux, rod, plate
  • 39. AWS:
A) Advanced Weld Standards
B) American Welding Society
C) American Wire Service
D) Arc Welding System
  • 40. Heat affected zone:
A) Slag-covered area
B) Metal altered but not melted
C) Joint line
D) Metal melted completely
  • 41. PJP:
A) Parallel Joint Pass
B) Pressure Joint Process
C) Primary Joint Preparation
D) Partial Joint Penetration
  • 42. CJP:
A) Controlled Joint Process
B) Complete Joint Penetration
C) Central Joint Plane
D) Cut Joint Position
  • 43. 1F:
A) Flat groove
B) Flat fillet
C) Vertical fillet
D) Overhead fillet
  • 44. 2F
A) Horizontal groove
B) Flat Fillet
C) Vertical groove
D) Horizontal fillet
  • 45. 3F
A) Flat fillet
B) Overhead fillet
C) Horizontal groove
D) Vertical fillet
  • 46. 4F:
A) Overhead fillet
B) Vertical fillet
C) Horizontal fillet
D) Flat groove
  • 47. 1G:
A) Flat fillet
B) Flat groove
C) Overhead groove
D) Vertical groove
  • 48. 2G:
A) Horizontal fillet
B) Flat groove
C) Horizontal groove
D) Vertical groove
  • 49. 3G:
A) Horizontal fillet
B) Flat groove
C) Vertical groove
D) Overhead groove
  • 50. 4G:
A) Overhead groove
B) Vertical groove
C) Horizontal fillet
D) Flat groove
  • 51. Weave:
A) Root buildup
B) Weld bead made with transverse movement
C) Slag brushing
D) Cleaning motion
  • 52. No large amount of ______ should be in the weld
A) Sulphur
B) Mercury
C) Hydrogen
D) Oxygen
Les étudiants ayant complété ce test ont aussi complété :

Créé avec That Quiz — où un test de math n'est qu'à un clic du bout des doigtsu bout des doigts.