Practice

Question bank

420 original questions across 9 domains, written for people preparing to prepare for the AWS Certified Welding Inspector (CWI) exam. Every one carries an explanation that says why the right answer is right and why the tempting one isn't.

Today's round

10 questions drawn from the whole bank, seeded to the calendar day, so everyone gets the same round. It rolls over at midnight UTC — and every other question is right below.

Practice by domain

The daily round samples everything at once. This is where you drill the one domain that keeps catching you out.

60 questionsWelding processesSMAW, GMAW, FCAW, GTAW, SAW and oxyfuel — equipment, polarity, shielding, transfer.45 questionsHeat controlHeat input, travel speed, preheat and interpass, cooling rates, distortion.50 questionsMetallurgyThe heat-affected zone, hardenability, hydrogen cracking, dilution, stainless behaviour.55 questionsNDT methodsWhat VT, PT, MT, UT and RT can each find, and the physics behind why.55 questionsWeld examinationVisual technique, measuring welds, characterising what you find on the steel.40 questionsWelding mathHeat input, throat conversions, weld metal weight, carbon equivalent, productivity.35 questionsSafetyArc radiation, fume, confined space, electrical, cylinders, hot work and PPE.45 questionsTerms and definitionsThe vocabulary — joints, weld parts, positions, and the distinctions that get tested.35 questionsDuties and documentationInspector responsibilities, ethics, records, and reviewing procedure paperwork.

Timed

Examination simulation

46 questions in 60 minutes, sampled across every domain in the same proportions as the bank, with nothing marked until you hand it in.

Open the simulation

About these questions

Every question here was written for this site from general welding knowledge. None is drawn from any published question bank, seminar material, or examination, and none asks you to recall a specific acceptance value from a code — that is a lookup skill, not knowledge, and testing it here would teach you the wrong habit.