ThatQuiz Bilduma Saia zaitez
12-11-25 Welding Midterm Review 2025
Hauen laguntzarekin: Sandifer
  • 1. What is the base metal?
A) The metal to be welded
B) The shielding gas makes sparks
C) The flux coating
D) The weld bead
  • 2. What is an arc?
A) A type of electrode
B) Light from welding
C) Flow of electricity through a gaseous space or air gap
D) A joint type that lets light fly around everywhere
  • 3. What is arc length?
A) Length of the rod
B) Length of the weld
C) The distance from the gap between plates and the clamp wire
D) The distance from the electrode to the weld pool
  • 4. What is undercut?
A) Extra filler metal
B) A grove melted into the base metal that is a misaligned joint
C) A surface crack
D) A groove melted into base metal left unfilled
  • 5. What is a crater?
A) A depression in the face of the weld
B) A porosity pocket 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 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) Metal particles expelled that do not form part of the weld
B) Falling flux 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) Non-metallic material trapped in weld
B) Steel trapped in slag
C) Undercut failure
D) Hot cracks trapped in the weld pool at the end
  • 9. What is a joint?
A) filler metal
B) a welding defect
C) Location where two or more members are joined
D) The end of the metal piece that is welded first.
  • 10. What is a crater crack?
A) A centerline crack
B) A crack in the crater of a weld bead
C) A stress fracture formed cause metal was too clean
D) A cold shut
  • 11. What is ductility
A) Ability to resist rust
B) Ability to stay magnetized
C) Ability to deform without failure
D) Ability to remain cold.
  • 12. What is duty cycle?
A) Percentage of time welders operate at rated output
B) Electrode burn rate is working nonstop
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) Distance fusion extends into base metal
C) Flux coating
D) Metal base plate
  • 14. What is depth of fusion?
A) Distance bead width extends
B) Distance fusion extends into base metal
C) Weld height
D) Rod penetration
  • 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) Weight of metal deposited per unit time
D) Length welded per hour
  • 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) Purely mechanical process
B) Uses shielding gas
C) Uses heat of an arc between covered electrode and the work
D) Uses tungsten electrode
  • 19. Advantage of SMAW?
A) Portable and inexpensive
B) High speed
C) Fully automated
D) No slag
  • 20. Disadvantage of SMAW?
A) Cannot weld steel
B) It’s slow
C) Requires gas bottles
D) Only works indoors
  • 21. 7018 can use:
A) AC only
B) AC or DC
C) DC only
D) Neither
  • 22. What polarity do we weld with?
A) Alternating ground
B) Straight polarity
C) No polarity
D) Reverse polarity
  • 23. Reverse polarity:
A) Electrode is positive, ground negative
B) Ground floats
C) Electrode negative
D) No polarity exists
  • 24. Two safety points:
A) Avoid using gloves never safety glasses
B) Proper ventilation and protective clothing
C) Use small rods and low heat
D) Always weld outside use sitka gloves
  • 25. SMAW electrode:
A) Carbon rod
B) MIG wire
C) TIG tungsten
D) Consumable electrode covered with flux
  • 26. Strength of 7018 rod:
A) 70k psi
B) 40k psi
C) 18k psi
D) 120k psi
  • 27. Meaning of 3rd digit in 7018:
A) Positive polarity rod
B) Rod length
C) Welding position
D) Coating type
  • 28. Meaning of 4th digit in 7018:
A) Arc length
B) Diameter
C) Composition of rod
D) Strength
  • 29. Four rod groups:
A) Inert, reactive, passive, active
B) Soft rods, hard rods, hot rods, cold rods
C) High carbon, low carbon, stainless, alloy
D) Celluosic, Rutile, Basic/low Hydrogen, Iron Powder
  • 30. DCEP:
A) Direct Coil Energy Pulse
B) Direct Current Electrode Positive
C) Dual Current Electrode Phase
D) Direct Current Elevated Pressure
  • 31. Why put rods in oven?
A) Prevent Bending
B) heat for penetration
C) Reduce moisture
D) sterilize
  • 32. Minimum oven temperature?
A) 100°F
B) 500°F
C) 175°F
D) 250°F
  • 33. E stands for:
A) Earth
B) Energy
C) Edge
D) Electrode
  • 34. Rod lengths:
A) 20–30 inches
B) 3–6 inches
C) 9–18 inches
D) 1–2 feet
  • 35. MR or R:
A) Medium rated
B) Metal rod
C) Moisture resistant
D) Machine ready
  • 36. Base metal we use:
A) Stainless steel
B) Aluminum
C) A36 mild steel
D) Cast iron
  • 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) Curve, twist, bend, fold, lock
C) Lap, butt, edge, corner, T-joint
D) Arc, gas, flux, rod, plate
  • 39. AWS:
A) American Wire Service
B) American Welding Society
C) Advanced Weld Standards
D) Arc Welding System
  • 40. Heat affected zone:
A) Slag-covered area
B) Metal altered but not melted
C) Metal melted completely
D) Joint line
  • 41. PJP:
A) Parallel Joint Pass
B) Primary Joint Preparation
C) Pressure Joint Process
D) Partial Joint Penetration
  • 42. CJP:
A) Complete Joint Penetration
B) Controlled Joint Process
C) Cut Joint Position
D) Central Joint Plane
  • 43. 1F:
A) Flat fillet
B) Overhead fillet
C) Vertical fillet
D) Flat groove
  • 44. 2F
A) Flat Fillet
B) Horizontal fillet
C) Horizontal groove
D) Vertical groove
  • 45. 3F
A) Flat fillet
B) Overhead fillet
C) Vertical fillet
D) Horizontal groove
  • 46. 4F:
A) Flat groove
B) Horizontal fillet
C) Vertical fillet
D) Overhead fillet
  • 47. 1G:
A) Vertical groove
B) Flat fillet
C) Flat groove
D) Overhead groove
  • 48. 2G:
A) Horizontal groove
B) Flat groove
C) Horizontal fillet
D) Vertical groove
  • 49. 3G:
A) Flat groove
B) Overhead groove
C) Vertical groove
D) Horizontal fillet
  • 50. 4G:
A) Vertical groove
B) Flat groove
C) Overhead groove
D) Horizontal fillet
  • 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) Mercury
B) Hydrogen
C) Oxygen
D) Sulphur
Azterketa honekin sortua That Quiz — matematikaren praktika erraza egiten den tokia.