A competent welder is judged by more than the final bead. Safe preparation, reading the task, selecting the correct equipment and consumables, fit-up, machine setup, controlled technique, inspection and housekeeping all matter.
This guide presents a practical welding work sequence that technicians can use for training and self-review. It is not a description of an official Saudi test station and does not claim to reproduce official assessment steps. These are practical skills that may help technicians prepare for competency-based work and assessment.
Saudi Skill Test is an independent preparation resource and is not affiliated with the Saudi government, Takamol or NSDC.
Safety rule: Quality never overrides safe working practice. If the work cannot be carried out under the required controls, stop and escalate rather than trying to “finish quickly.”
What Practical Competency Means
Practical competency means being able to perform a task consistently while following the relevant technical and safety requirements. For welding, observable competency can include:
- reading the work instruction;
- identifying the joint and process;
- selecting correct tools and consumables;
- inspecting equipment;
- preparing and fitting the material;
- following the WPS;
- controlling the arc and weld pool;
- cleaning and checking between passes;
- inspecting the finished weld;
- maintaining a safe, organized work area;
- recognizing when to stop and request review.
ISO 9606-1 emphasizes a welder’s ability to manually manipulate the electrode, torch or welding blowpipe to produce a weld of acceptable quality within the qualification framework. This is a useful reminder that practical skill is demonstrated through controlled action, not memorization alone.
Step 1: Read the Drawing and WPS
Before touching the machine, identify:
- component and weld location;
- joint type;
- material and thickness;
- required welding process;
- welding position;
- filler or electrode;
- joint preparation;
- polarity/current type;
- shielding gas where required;
- preheat/interpass controls where required;
- sequence or pass requirements;
- inspection requirements.
If the drawing and actual part do not match, do not assume the workshop has “changed the design.” Stop and obtain clarification.
Practice habit
Point to each important WPS field and explain what you will physically check. This turns paperwork into practical control.
Step 2: Inspect Equipment
A pre-use equipment inspection should be systematic.
Power source
Check that:
- the correct process mode is available;
- machine condition is serviceable;
- covers and controls are intact;
- leads and connectors are serviceable;
- ventilation openings are not blocked;
- equipment location is safe for the work environment.
Electrode holder or torch
Look for:
- damage or overheating;
- loose parts;
- unsuitable or worn consumable components;
- gas-path issues where applicable;
- poor insulation or damaged cable sections.
Work return connection
The work clamp should make a sound connection at a suitable location. Dirty, loose or badly placed connections can contribute to unstable welding and localized heating.
Gas system
Where shielding or fuel gas is used:
- identify the gas from the correct label;
- secure cylinders;
- inspect regulator, hoses and fittings;
- verify the system is compatible with the intended gas;
- check for suspected leaks using the approved method.
Step 3: Select Correct Consumables
Do not select a consumable by diameter alone.
Verify:
- classification/designation;
- diameter;
- compatibility with the WPS;
- storage condition;
- contamination or damage;
- correct shielding gas where applicable.
A similar-looking electrode or wire can have different properties and operating requirements.
Scenario: the correct electrode box is empty
A nearby box contains electrodes of the same diameter.
The wrong response is: “They fit the holder, so use them.”
The correct response is to verify classification and authorization before substitution. If the WPS does not permit it, obtain the specified consumable.
Step 4: Prepare the Material
Material preparation may include:
- confirming identity and dimensions;
- cutting or beveling according to the drawing;
- removing contaminants from the weld zone;
- checking for coatings that require special controls;
- dressing edges safely;
- measuring root preparation and alignment.
Preparation should not silently change the component. Excessive grinding can remove required material or change the joint geometry.
Use measuring tools rather than visual judgment alone.
Step 5: Fit-Up
Fit-up creates the joint the WPS expects.
Check:
- orientation;
- root opening and root face where applicable;
- alignment;
- mismatch/offset;
- specified overlap;
- access;
- backing or purge arrangement where required;
- support and restraint;
- tack-weld condition.
Recheck after tack welding because shrinkage can move the joint.
Observable skill
A strong technician can explain why each measurement matters instead of only saying “it looks correct.”
Step 6: Set the Machine
Machine setup should follow the process and WPS.
Confirm:
- process mode;
- polarity;
- electrode/wire size;
- parameter range;
- wire-feed arrangement where applicable;
- gas selection where applicable;
- torch/electrode setup;
- work connection.
Avoid copying settings from an unrelated job. The same material thickness can still require a different setup because of joint, process, position, filler or gas changes.
Step 7: Trial and Check
Where the work procedure allows a trial on scrap or a designated test piece, use it to confirm that the machine and consumables behave as expected before welding the production joint.
A trial is not permission to leave the WPS range. It is a controlled verification step.
Look for:
- stable arc;
- expected wire/electrode behavior;
- suitable shielding;
- appropriate bead response;
- no obvious equipment problem.
If the result is abnormal, diagnose the cause before starting the real joint.
Step 8: Weld Using Controlled Technique
During welding, maintain disciplined control of:
- arc length;
- travel speed;
- electrode or torch angle;
- bead placement;
- puddle observation;
- filler addition where applicable;
- sequence;
- starts and stops;
- crater control;
- position-specific technique.
The exact technique depends on process and WPS. “Move slower” or “use more heat” are not universal corrections.
Stay inside the process
If you find yourself making increasingly large adjustments to compensate for poor fit-up, wrong consumables or unstable equipment, stop. Do not use technique to hide a setup problem.
Step 9: Clean Between Passes Where Required
Interpass cleaning prevents slag, oxide or contamination from being trapped beneath later passes.
Depending on process, this may involve:
- chipping or brushing slag;
- removing visible spatter that interferes with the next pass;
- grinding where the approved procedure requires it;
- cleaning the groove edges;
- checking for visible defects before covering the pass.
Use tools suitable for the material and procedure.
A welder should never cover a suspected crack or serious indication with the next pass.
Step 10: Visual Inspection
After welding, inspect before declaring the job finished.
Look for:
- complete weld length;
- correct location;
- visible cracks;
- porosity;
- undercut;
- abnormal profile;
- crater condition;
- arc strikes;
- excessive distortion;
- dimensional conformity;
- required cleaning.
Acceptance must be judged against the applicable criteria. A welder can identify and report an imperfection without pretending to be the final inspection authority.
ISO 17637 provides a recognized framework for visual testing of fusion-welded joints, including visual checking before welding.
Step 11: Measure and Check Work
A professional finish includes dimensional verification where required.
Possible checks include:
- weld size;
- joint alignment;
- component dimensions;
- distortion;
- specified length or location;
- identification/marking.
Use the correct gauge and procedure. Do not estimate a required dimension with a finger or by comparing it to the electrode diameter.
Step 12: Housekeeping
Housekeeping is part of practical competency because poor housekeeping can create fire, trip, cut and equipment-damage hazards.
At the end of the task:
- stop equipment safely;
- remove electrode stubs and sharp scrap;
- handle hot metal safely;
- return gas systems to the required safe condition;
- coil/store leads and hoses without damage;
- remove grinding dust and waste as required;
- keep access routes clear;
- complete any required hot-work fire check;
- report defective tools or equipment.
A technically good weld does not make an unsafe workstation acceptable.
A Complete Practical Workflow
Use this sequence as a training routine:
Read → Verify → Inspect → Select → Prepare → Fit → Set → Trial → Weld → Clean → Inspect → Measure → Housekeep → Report
Each step should have a reason.
Example
A trainee receives two prepared steel plates and a work instruction.
Instead of immediately turning on the machine, the trainee should:
- identify the joint and material;
- locate the WPS;
- check preparation and fit-up;
- confirm process and consumable;
- inspect equipment;
- set polarity and parameters within the procedure;
- confirm safety controls;
- weld using controlled technique;
- clean and inspect;
- measure/report the result;
- leave the workstation safe.
This behavior demonstrates more useful competency than memorizing a list of possible exam questions.
7-Day Practice Routine
This routine is a training suggestion, not an official assessment plan.
Day 1 — Documents and joint recognition
Practice:
- identifying butt, fillet, lap and corner joints;
- reading basic weld symbols;
- finding process, filler, polarity and position on a sample WPS;
- explaining which information must come from the procedure rather than memory.
Day 2 — Equipment inspection
Practice a complete pre-use inspection without welding. Explain each defect you are looking for and why it matters.
Day 3 — Fit-up and measurement
Prepare and measure sample joints. Focus on repeatability. Recheck after tack welding and record any movement.
Day 4 — Arc/process control
Use supervised practice pieces under an approved procedure. Concentrate on one process variable at a time: arc length, travel speed, angle and bead placement.
Day 5 — Defect recognition
Review sample welds or training coupons. Describe visible conditions using neutral language: porosity, undercut, irregular profile, suspected crack, spatter, arc strike or distortion.
For each one, list possible causes without claiming one cause is certain.
Day 6 — Full task sequence
Perform a supervised task from document review through housekeeping. Ask the observer to score the sequence, not only the final bead.
Day 7 — Repeat under time awareness
Repeat the task with normal work discipline. Do not rush safety or inspection. The goal is smooth sequence and fewer unnecessary movements, not unsafe speed.
Readiness Self-Scoring Rubric
Score each area from 0 to 3:
- 0 — Not demonstrated: needs full guidance.
- 1 — Developing: completes part of the task but misses important checks.
- 2 — Competent practice: completes safely with minor prompts.
- 3 — Consistent: completes correctly, explains decisions and recognizes abnormal conditions.
| Area | What to observe | Score 0–3 |
|---|---|---|
| Safety | identifies hazards, uses controls, stops when unsafe | |
| Preparation | reads task/WPS, prepares correct joint | |
| Setup | correct process, consumable, polarity and equipment | |
| Technique | controlled arc, travel and bead placement | |
| Quality | inspects and recognizes abnormal conditions | |
| Housekeeping | leaves equipment and area safe |
A perfect-looking bead should not earn a high overall score if the trainee ignored safety, used the wrong consumable or failed to follow the WPS.
Readiness Checklist
Documents
- I can identify the correct WPS.
- I can locate process, position, filler and polarity information.
- I know when to ask for clarification.
Equipment
- I can inspect leads, holder/torch and work clamp.
- I can identify damaged equipment that should be removed from service.
- I can confirm the correct process mode and polarity.
Consumables
- I verify classification, not diameter alone.
- I understand that storage and gas requirements can be consumable-specific.
Joint
- I can distinguish root opening, root face and groove angle.
- I measure fit-up before welding.
- I recheck after tacking.
Welding
- I can maintain controlled arc length and travel.
- I do not change several variables randomly.
- I stop when a serious abnormal condition appears.
Inspection
- I can identify common visible imperfections.
- I do not invent acceptance criteria.
- I know when repair requires authorization.
Safety
- I check fire, fume, radiation and electrical hazards.
- I understand cylinder and hot-work controls.
- I do not treat confined-space hot work as routine welding.
Common Readiness Mistakes
Starting before reading
Fast setup is not competence if the welder starts with the wrong process or joint.
Treating the machine display as the whole WPS
The WPS also controls material, joint, filler, gas, position and other variables.
Hiding defects
Grinding or welding over a serious indication before required review can destroy evidence and worsen the repair.
Ignoring housekeeping
Leaving hot scrap, damaged leads or loose cylinders behind means the job is not safely complete.
Practicing only the final bead
Assessment-oriented preparation should include the whole sequence: documents, setup, preparation, welding, inspection and safety.
What to Study Next
Use the full Welder guide set:
- W1 — Welding Processes, Machines and Consumables
- W2 — Weld Joint Preparation, Welding Positions and WPS Basics
- W3 — Common Welding Defects and Visual Inspection
- W4 — Welding Safety, Hot Work and Gas Cylinder Handling
- Welder practice tests for original questions that reinforce these skills.
Key Takeaways
- Practical competency is an observable work sequence, not memorized theory alone.
- Read the drawing and WPS before setting up equipment.
- Inspect the machine, circuit, consumables and gas system before welding.
- Fit-up and preparation errors should be corrected upstream, not hidden with technique.
- Use controlled technique and diagnose abnormal behavior systematically.
- Inspect before, during and after welding.
- Quality, safety and housekeeping all contribute to readiness.
- This guide is independent training material and does not claim to reproduce official Saudi assessment steps.
Technical References
- ISO 9606-1:2012 — Qualification testing of welders — Fusion welding — Part 1: Steels — https://www.iso.org/standard/54936.html
- ISO 15607:2019 — Specification and qualification of welding procedures for metallic materials — General rules — https://www.iso.org/standard/71495.html
- ISO 17637:2016 — Non-destructive testing of welds — Visual testing of fusion-welded joints — https://www.iso.org/standard/67259.html
- ISO 5817:2023 — Welding — Fusion-welded joints — Quality levels for imperfections — https://www.iso.org/standard/80209.html
- Saudi National Council for Occupational Safety and Health — industrial/workshop safety guidance — https://ncosh.gov.sa/en/knowledge-center/rules-regulations/administrative-systems/
Editorial note: The 7-day routine and scoring rubric are original training aids created for Saudi Skill Test. They are not official Saudi Skill Verification Program procedures or scoring criteria.