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