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