12-11-25 Welding Midterm Review 2025 - Qüestionari
  • 1. What is the base metal?
A) The shielding gas makes sparks
B) The flux coating
C) The metal to be welded
D) The weld bead
  • 2. What is an arc?
A) A type of electrode
B) Flow of electricity through a gaseous space or air gap
C) Light from welding
D) A joint type that lets light fly around everywhere
  • 3. What is arc length?
A) The distance from the gap between plates and the clamp wire
B) Length of the weld
C) Length of the rod
D) The distance from the electrode to the weld pool
  • 4. What is undercut?
A) A groove melted into base metal left unfilled
B) Extra filler metal
C) A grove melted into the base metal that is a misaligned joint
D) A surface crack
  • 5. What is a crater?
A) A melted rod tip 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 depression in the face of the weld
  • 6. What is the axis of weld?
A) Imaginary line through center of weld metal
B) Imaginary line through top of the bead
C) Imaginary line through HAZ boundary
D) Imaginary line through weld toe
  • 7. What is spatter?
A) Gas bubbles 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) Falling flux expelled that do not form part of the weld
  • 8. What is slag inclusion?
A) Non-metallic material trapped in weld
B) Steel trapped in slag
C) Hot cracks trapped in the weld pool at the end
D) Undercut failure
  • 9. What is a joint?
A) a welding defect
B) The end of the metal piece that is welded first.
C) Location where two or more members are joined
D) filler metal
  • 10. What is a crater crack?
A) A cold shut
B) A stress fracture formed cause metal was too clean
C) A crack in the crater of a weld bead
D) A centerline crack
  • 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) Arc stability rating
B) Percentage of time welders operate at rated output
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) Metal base plate
C) Flux coating
D) Distance fusion extends into base metal
  • 14. What is depth of fusion?
A) Distance fusion extends into base metal
B) Weld height
C) Rod penetration
D) Distance bead width extends
  • 15. What is penetration?
A) Bead surface depth
B) Arc reach
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) Stick Metal Arc Work
C) Shielded Metal Arc Welding
D) Shielded Mechanical Arc Welding
  • 18. What is SMAW?
A) Purely mechanical process
B) Uses shielding gas
C) Uses tungsten electrode
D) Uses heat of an arc between covered electrode and the work
  • 19. Advantage of SMAW?
A) High speed
B) Fully automated
C) No slag
D) Portable and inexpensive
  • 20. Disadvantage of SMAW?
A) It’s slow
B) Only works indoors
C) Cannot weld steel
D) Requires gas bottles
  • 21. 7018 can use:
A) Neither
B) AC only
C) DC only
D) AC or DC
  • 22. What polarity do we weld with?
A) Reverse polarity
B) No polarity
C) Alternating ground
D) Straight polarity
  • 23. Reverse polarity:
A) No polarity exists
B) Electrode is positive, ground negative
C) Ground floats
D) Electrode negative
  • 24. Two safety points:
A) Avoid using gloves never safety glasses
B) Always weld outside use sitka gloves
C) Proper ventilation and protective clothing
D) Use small rods and low heat
  • 25. SMAW electrode:
A) Carbon rod
B) Consumable electrode covered with flux
C) TIG tungsten
D) MIG wire
  • 26. Strength of 7018 rod:
A) 40k psi
B) 120k psi
C) 70k psi
D) 18k psi
  • 27. Meaning of 3rd digit in 7018:
A) Rod length
B) Positive polarity rod
C) Coating type
D) Welding position
  • 28. Meaning of 4th digit in 7018:
A) Composition of rod
B) Diameter
C) Arc length
D) Strength
  • 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 Coil Energy Pulse
C) Direct Current Electrode Positive
D) Direct Current Elevated Pressure
  • 31. Why put rods in oven?
A) heat for penetration
B) Reduce moisture
C) sterilize
D) Prevent Bending
  • 32. Minimum oven temperature?
A) 100°F
B) 500°F
C) 175°F
D) 250°F
  • 33. E stands for:
A) Edge
B) Earth
C) Electrode
D) Energy
  • 34. Rod lengths:
A) 20–30 inches
B) 9–18 inches
C) 3–6 inches
D) 1–2 feet
  • 35. MR or R:
A) Moisture resistant
B) Medium rated
C) Machine ready
D) Metal rod
  • 36. Base metal we use:
A) A36 mild steel
B) Stainless steel
C) Aluminum
D) Cast iron
  • 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) 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) American Wire Service
B) Advanced Weld Standards
C) Arc Welding System
D) American Welding Society
  • 40. Heat affected zone:
A) Metal melted completely
B) Joint line
C) Metal altered but not melted
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) Central Joint Plane
B) Complete Joint Penetration
C) Controlled Joint Process
D) Cut Joint Position
  • 43. 1F:
A) Vertical fillet
B) Flat fillet
C) Flat groove
D) Overhead fillet
  • 44. 2F
A) Horizontal fillet
B) Vertical groove
C) Flat Fillet
D) Horizontal groove
  • 45. 3F
A) Horizontal groove
B) Flat fillet
C) Overhead fillet
D) Vertical fillet
  • 46. 4F:
A) Vertical fillet
B) Horizontal fillet
C) Overhead fillet
D) Flat groove
  • 47. 1G:
A) Flat groove
B) Overhead groove
C) Flat fillet
D) Vertical groove
  • 48. 2G:
A) Horizontal groove
B) Vertical groove
C) Horizontal fillet
D) Flat groove
  • 49. 3G:
A) Flat groove
B) Horizontal fillet
C) Overhead groove
D) Vertical groove
  • 50. 4G:
A) Flat groove
B) Vertical groove
C) Horizontal fillet
D) Overhead groove
  • 51. Weave:
A) Cleaning motion
B) Slag brushing
C) Weld bead made with transverse movement
D) Root buildup
  • 52. No large amount of ______ should be in the weld
A) Sulphur
B) Mercury
C) Hydrogen
D) Oxygen
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