CWI study plan
CWI · Give each week a clear focus.
8 weeks · About 7 hours per week
Welding Fundamentals and Processes (Part A) & Codes, Standards, and Acceptance Criteria (Part C)
Define the five primary arc welding processes (SMAW, GMAW, FCAW, SAW, GTAW) and list the essential variables that control each
Identify and sketch the five joint types and the standard weld types performed on each
Label weld cross-section terminology (root, face, toe, throat, leg, reinforcement) on hand-drawn diagrams
Decode AWS filler metal classification numbers for at least six common electrodes and rods
Build a tabbed index of the codebook by clause number and title
Your checkpoint
A one-page weld and joint terminology sheet with 10 labeled hand sketches, plus a self-quiz scored at 90% or better
Welding Fundamentals and Processes (Part A) & Codes, Standards, and Acceptance Criteria (Part C)
Calculate heat input, amperage-travel speed relationships, and deposition rates for 10 parameter sets
Explain how preheat, interpass temperature, and cooling rate affect microstructure and cracking
Differentiate essential, supplementary essential, and nonessential variables on a WPS/PQR
Trace the qualification path from procedure qualification through welder performance qualification
Map the clause structure of the structural welding code so any topic can be located in under 60 seconds
Your checkpoint
A worked problem set of 10 heat-input and travel-speed calculations plus a one-page WPS/PQR variable checklist
Welding Fundamentals and Processes (Part A) & Codes, Standards, and Acceptance Criteria (Part C)
Distinguish discontinuities from defects and explain why the distinction is acceptance-criteria dependent
Classify porosity, slag inclusion, incomplete fusion, incomplete penetration, and undercut by cause and morphology
Identify distortion types and select corrective and preventive techniques for each
Match base metal groups and filler metal selections for common structural steels
Explain the purpose and content of a WPS, PQR, and welder qualification record
Your checkpoint
A discontinuity cause-and-prevention table with at least 15 entries, each naming the process, cause, and control measure
Practical Inspection and Nondestructive Examination (Part B)
Describe the inspector's responsibilities before, during, and after welding
Sequence a complete visual inspection from fit-up through final acceptance
Identify visual inspection tools (filters, magnifiers, undercut gauge, fillet weld gauge, HI-LO gauge) and state when each is used
Explain the physical principles, capabilities, and limitations of PT, MT, UT, and RT
Select an appropriate NDE method for a given discontinuity type and location
Your checkpoint
A mock visual inspection report covering five described weld scenarios, documenting observed conditions and required actions
Practical Inspection and Nondestructive Examination (Part B)
Measure fillet weld leg, throat, convexity, and concavity using gauge readings and compute effective throat
Convert measured groove weld reinforcement and misalignment values into acceptance comparisons
Interpret welding symbols and NDE symbols on fabrication drawings
Explain weld mapping, joint tracking, and documentation of inspection hold points
Describe how surface condition and accessibility constrain NDE method selection
Your checkpoint
A 10-problem gauge-reading and weld-size calculation worksheet with a self-check answer key
Practical Inspection and Nondestructive Examination (Part B) & Codes, Standards, and Acceptance Criteria (Part C)
Apply code acceptance criteria to 20 written discontinuity scenarios and issue accept or reject determinations
Cite the specific clause supporting each determination
Explain qualification and certification requirements for inspection personnel
Compare visual and volumetric NDE results and justify repair, retest, or acceptance decisions
Describe repair procedure requirements and re-inspection steps
Your checkpoint
A 20-scenario accept/reject log with a clause citation recorded for every decision
Codes, Standards, and Acceptance Criteria (Part C) & Welding Fundamentals and Processes (Part A)
Tabulate the most frequently applied code clauses covering workmanship, fit-up, tolerances, and acceptance
Apply prequalified joint detail limits, including thickness and process ranges
Review welding symbol fundamentals and construct symbols for six given joints
Explain stud welding and tubular connection requirements at a familiarization level
Reconcile any conflicts between drawing notes, the WPS, and the governing code
Your checkpoint
A tabbed codebook with at least 40 marked and annotated clauses plus a completed six-item welding symbol worksheet
Welding Fundamentals and Processes (Part A) & Practical Inspection and Nondestructive Examination (Part B) & Codes, Standards, and Acceptance Criteria (Part C)
Complete two full-length timed practice exams under exam-day conditions
Analyze every missed item and assign it to a domain and a root cause
Re-drill the three weakest subtopics until the error log is fully resolved
Assemble an exam-day checklist covering references, calculator, and time allocation
Verify that all three domains receive balanced final review
Your checkpoint
An error log with 100% of missed items resolved and two timed exams scored at 85% or higher
Milestones
Week 2: Score 80% or better on a self-made 30-question quiz covering process fundamentals and heat input calculations, and locate any named code clause within one minute
Week 4: Score 80% or better on a 40-question mixed quiz spanning fundamentals and code application, and submit a completed mock inspection report
Week 6: Achieve 17 of 20 correct accept/reject determinations with a correct clause citation on at least 15 of them
Week 8: Score 85% or higher on two separate full-length timed practice exams, with every missed item logged and re-worked to a correct answer