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12-11-25 Welding Midterm Review 2025
Katkıları bulunanlar: Sandifer
  • 1. What is the base metal?
A) The metal to be welded
B) The flux coating
C) The weld bead
D) The shielding gas makes sparks
  • 2. What is an arc?
A) A type of electrode
B) A joint type that lets light fly around everywhere
C) Flow of electricity through a gaseous space or air gap
D) Light from welding
  • 3. What is arc length?
A) Length of the rod
B) The distance from the electrode to the weld pool
C) The distance from the gap between plates and the clamp wire
D) Length of the weld
  • 4. What is undercut?
A) Extra filler metal
B) A groove melted into base metal left unfilled
C) A grove melted into the base metal that is a misaligned joint
D) A surface crack
  • 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 weld toe
C) Imaginary line through center of weld metal
D) Imaginary line through top of the bead
  • 7. What is spatter?
A) Falling flux expelled that do not form part of the weld
B) Arc blow expelled that do not form part of the weld
C) Gas bubbles expelled that do not form part of the weld
D) Metal particles expelled that do not form part of the weld
  • 8. What is slag inclusion?
A) Undercut failure
B) Hot cracks trapped in the weld pool at the end
C) Non-metallic material trapped in weld
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 cold shut
C) A crack in the crater of a weld bead
D) A centerline crack
  • 11. What is ductility
A) Ability to remain cold.
B) Ability to stay magnetized
C) Ability to deform without failure
D) Ability to resist rust
  • 12. What is duty cycle?
A) Machine lifespan over a 10 min period
B) Arc stability rating
C) Electrode burn rate is working nonstop
D) Percentage of time welders operate at rated output
  • 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) Rod penetration
B) Distance bead width extends
C) Distance fusion extends into base metal
D) Weld height
  • 15. What is penetration?
A) Slag depth
B) Arc reach
C) Bead surface depth
D) Extent weld metal combines with base metal
  • 16. What is deposition rate?
A) Weight of metal deposited per unit time
B) Amount of slag produced
C) Heat generated
D) Length welded per hour
  • 17. What does SMAW stand for?
A) Stick Metal Arc Work
B) Shielded Mechanical Arc Welding
C) Solid Metal Arc Welding
D) Shielded Metal Arc Welding
  • 18. What is SMAW?
A) Purely mechanical process
B) Uses heat of an arc between covered electrode and the work
C) Uses tungsten electrode
D) Uses shielding gas
  • 19. Advantage of SMAW?
A) No slag
B) Portable and inexpensive
C) Fully automated
D) High speed
  • 20. Disadvantage of SMAW?
A) Only works indoors
B) Requires gas bottles
C) It’s slow
D) Cannot weld steel
  • 21. 7018 can use:
A) AC only
B) AC or DC
C) Neither
D) DC only
  • 22. What polarity do we weld with?
A) No polarity
B) Reverse polarity
C) Alternating ground
D) Straight polarity
  • 23. Reverse polarity:
A) Electrode negative
B) Electrode is positive, ground negative
C) No polarity exists
D) Ground floats
  • 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) Consumable electrode covered with flux
B) MIG wire
C) TIG tungsten
D) Carbon rod
  • 26. Strength of 7018 rod:
A) 120k psi
B) 40k psi
C) 70k psi
D) 18k psi
  • 27. Meaning of 3rd digit in 7018:
A) Coating type
B) Positive polarity rod
C) Welding position
D) Rod length
  • 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) High carbon, low carbon, stainless, alloy
C) Inert, reactive, passive, active
D) Celluosic, Rutile, Basic/low Hydrogen, Iron Powder
  • 30. DCEP:
A) Dual Current Electrode Phase
B) Direct Current Electrode Positive
C) Direct Coil Energy Pulse
D) Direct Current Elevated Pressure
  • 31. Why put rods in oven?
A) Prevent Bending
B) sterilize
C) heat for penetration
D) Reduce moisture
  • 32. Minimum oven temperature?
A) 250°F
B) 175°F
C) 500°F
D) 100°F
  • 33. E stands for:
A) Earth
B) Edge
C) Electrode
D) Energy
  • 34. Rod lengths:
A) 3–6 inches
B) 9–18 inches
C) 1–2 feet
D) 20–30 inches
  • 35. MR or R:
A) Moisture resistant
B) Machine ready
C) Metal rod
D) Medium rated
  • 36. Base metal we use:
A) Aluminum
B) Stainless steel
C) A36 mild steel
D) Cast iron
  • 37. Light produced in welding:
A) Electro violet and ultra red light
B) Blue spectrum only
C) Green infrared
D) X‑ray emissions
  • 38. Five joint types:
A) Lap, butt, edge, corner, T-joint
B) Arc, gas, flux, rod, plate
C) Root, face, toe, leg, web
D) Curve, twist, bend, fold, lock
  • 39. AWS:
A) Arc Welding System
B) American Welding Society
C) American Wire Service
D) Advanced Weld Standards
  • 40. Heat affected zone:
A) Metal melted completely
B) Metal altered but not melted
C) Joint line
D) Slag-covered area
  • 41. PJP:
A) Pressure Joint Process
B) Partial Joint Penetration
C) Primary Joint Preparation
D) Parallel Joint Pass
  • 42. CJP:
A) Cut Joint Position
B) Central Joint Plane
C) Complete Joint Penetration
D) Controlled Joint Process
  • 43. 1F:
A) Flat groove
B) Flat fillet
C) Vertical fillet
D) Overhead fillet
  • 44. 2F
A) Horizontal fillet
B) Vertical groove
C) Horizontal groove
D) Flat Fillet
  • 45. 3F
A) Flat fillet
B) Vertical fillet
C) Horizontal groove
D) Overhead fillet
  • 46. 4F:
A) Overhead fillet
B) Horizontal fillet
C) Flat groove
D) Vertical fillet
  • 47. 1G:
A) Flat groove
B) Overhead groove
C) Vertical groove
D) Flat fillet
  • 48. 2G:
A) Vertical groove
B) Flat groove
C) Horizontal fillet
D) Horizontal groove
  • 49. 3G:
A) Vertical groove
B) Horizontal fillet
C) Overhead groove
D) Flat groove
  • 50. 4G:
A) Vertical groove
B) Flat groove
C) Horizontal fillet
D) Overhead groove
  • 51. Weave:
A) Cleaning motion
B) Root buildup
C) Weld bead made with transverse movement
D) Slag brushing
  • 52. No large amount of ______ should be in the weld
A) Hydrogen
B) Oxygen
C) Sulphur
D) Mercury
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