10 free, exam-style Certified Welding Educator (CWE) practice questions with answers and explanations. No signup required. Work through them below, then take the full free CWE practice test to study every exam domain.
An inspector reports that a weld contains a discontinuity. A trainee asks whether this means the weld must be rejected. The most accurate response is that the weld is rejectable:
Correct answer: A - Only if the discontinuity exceeds the applicable acceptance criteria
On a drawing prepared to AWS A2.4, a fillet weld symbol is placed BELOW the reference line. This specifies a weld on the:
Correct answer: C - Arrow side of the joint
A cross-section shows that the weld metal did not extend through the full thickness of the joint as required by the drawing, even though each bead fused soundly to the next. This condition is:
Correct answer: D - Incomplete joint penetration
A tight, planar crack lies perpendicular to the plate surface deep within a thick steel weld. Which examination method is MOST likely to reliably detect and size it?
Correct answer: A - Ultrasonic testing (UT)
A student proposes using magnetic particle testing (MT) to inspect a finished 316 stainless steel weld for surface cracks. The instructor should explain that MT:
Correct answer: D - Cannot be relied upon because 316 stainless is not ferromagnetic
Which document records the ACTUAL values used to weld a test coupon together with the results of the mechanical tests performed on it?
Correct answer: B - The Procedure Qualification Record (PQR)
A weld is deposited at 25 V and 220 A with a travel speed of 11 in./min. Using the standard formula, the heat input is closest to:
Correct answer: C - 30,000 J/in.
For an equal-leg fillet weld with a leg size of 1/2 in., the theoretical throat is approximately:
Correct answer: B - 0.354 in.
Students are about to weld on galvanized steel in the shop. The instructor's PRIMARY health-and-safety concern should be:
Correct answer: D - Zinc oxide fume, which can cause metal fume fever
While measuring a fillet weld, a trainee finds weld metal that has rolled over the toe and is resting on the base metal WITHOUT fusing to it. This is correctly identified as:
Correct answer: A - Overlap at the weld toe
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