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