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CWS Examination Practice Questions

Class notes Jan 1, 2026 ★★★★☆ (4.0/5)
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AWS Certified Welding Supervisor (CWS) Examination Practice Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf

  • Which AWS specification covers the qualification of welding
  • procedures?

A. AWS D1.1

B. AWS B2.1

C. AWS A5.18

D. AWS D1.5

Rationale: AWS B2.1 provides the standard for welding procedure

and performance qualification.

  • What is the primary purpose of a welding procedure specification

(WPS)? 1 / 4

  • To define the welder’s salary
  • To provide a step-by-step welding manual
  • To ensure consistent and repeatable weld quality
  • To document inspection results

Rationale: A WPS is a document that provides parameters for

producing quality welds consistently.

  • Which type of joint is most commonly used for butt welding?
  • Lap joint
  • Corner joint
  • Tee joint
  • Butt joint

Rationale: Butt joints involve two pieces of metal aligned in the same

plane and are standard for full-penetration welds.

4. The recommended preheat temperature is primarily intended to:

  • Reduce welding speed
  • Minimize the risk of cracking
  • Reduce filler metal consumption
  • Increase electrode life

Rationale: Preheating slows cooling, reducing thermal stresses and

preventing cracking.

  • Which of the following electrodes is best suited for welding low-alloy
  • steel?

A. E6010 2 / 4

B. E7018

C. E308L

D. E316L

Rationale: E7018 electrodes are low-hydrogen and suitable for low-

alloy steels with good mechanical properties.

  • When performing a visual inspection, what is the maximum allowable
  • undercut for a fillet weld?

  • 1/32 inch
  • 1/16 inch
  • 1/8 inch
  • 1/4 inch

Rationale: AWS D1.1 specifies that undercut should not exceed 1/8

inch for fillet welds.

  • Which NDE method is most appropriate for detecting internal cracks in
  • a weld?

  • Visual inspection
  • Magnetic particle testing
  • Radiographic testing
  • Dye penetrant testing

Rationale: Radiographic testing (RT) allows detection of internal

discontinuities within a weld.

  • Which factor has the greatest effect on weld distortion?
  • Electrode brand 3 / 4
  • Filler metal type
  • Heat input
  • Shielding gas type

Rationale: Heat input directly influences thermal expansion and

contraction, leading to distortion.

  • What is the purpose of a weld map?
  • To track welders’ working hours
  • To calculate material costs
  • To document and locate welds on a structure
  • To record weld amperage

Rationale: A weld map identifies all welds on a component for

traceability and inspection purposes.

  • Which gas is commonly used for gas metal arc welding (GMAW)
  • of carbon steel?

  • Helium
  • Carbon dioxide (CO₂)
  • Oxygen
  • Nitrogen

Rationale: CO₂ is commonly used as a shielding gas for GMAW on

carbon steels due to its penetration characteristics.

  • What is the effect of excessive travel speed on a weld bead?
  • Wider bead
  • Increased penetration
  • / 4

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Category: Class notes
Added: Jan 1, 2026
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AWS Certified Welding Supervisor (CWS) Examination Practice Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf 1. Which AWS specification covers the qu...

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