How the quiz works
Pick a topic or leave it on all topics. A mixed set serves all 18 questions in a shuffled order, with the options shuffled too; a topic set serves only that topic's questions. Check your answer and you get the reason the right option is right, why each of the other three is wrong, and the document the point rests on.
You score one point per question. At the end you see your score by topic, weakest first: Physics: waves, velocity and refraction, Equipment: probes and setup, Calibration and reference levels, Evaluation: locating and sizing, Procedures and scanning. Under the score you get the page or calculator that fixes your weakest topic. Hit New shuffle for a fresh order, and quote the set number if you report an error.
Worked examples
Example 1: which leg is the indication on?
A 45° shear-wave probe is on flat plate 20 mm thick, and an indication peaks at a sound path of 40 mm. Step 1: find one leg. 20 / cos 45° = 28.3 mm. Step 2: compare. 40 mm is longer than one leg, so the beam has already bounced off the back wall and the reflector is on the second leg. Step 3: use the second-leg depth. Depth = 2T − (sound path × cos θ) = 40 − 28.3 = 11.7 mm below the scanning surface. Step 4: sanity check. The first-leg formula would give 28.3 mm, deeper than the plate, which is the tell that you picked the wrong leg. The skip distance calculator works the same geometry for any angle and thickness.
Example 2: the wedge angle for a 45° shear wave
The wedge runs at 2.70 mm/µs and the test alloy has a shear velocity of 3.20 mm/µs. Step 1: write Snell's law with the shear velocity, because the wave you want in the part is a shear wave: sin θi / 2.70 = sin 45° / 3.20. Step 2: solve. sin θi = 0.8438 × 0.7071 = 0.5966. Step 3: take the inverse sine. θi = 36.6° from the normal. Step 4: sanity check. The wedge is slower than the part, so the incident angle must be smaller than the refracted one. If you get 56.9°, you flipped the ratio. Check any pair in the Snell's law calculator, and see every formula with its convention in the UT formulas guide.
How the questions were written
Every question is original. We wrote each one from public ultrasonic physics, the kind set out in Evident's published transducer notes and flaw detection tutorial, and from the topics ASNT publishes for the UT General exam. None is a recalled exam item, and no text or values are copied from ASME BPVC Section V, Article 4 or any other standard; they are cited by name only. The worked problems use made-up materials and probes so you practice the method, not memorize a number. Each answer key was solved a second time on its own before it shipped.
New to the method? What ultrasonic testing is covers the basics in plain words. For the exam format and the six topics, see the UT Level II General exam guide.
Ultrasonic testing quiz FAQ
How many questions are on the UT Level 2 General exam?
ASNT lists the UT General exam as 50 questions in 2 hours, and it publishes no weights for the topics, so every topic needs covering. ASNT has two topic lists, one for exams before 5 February 2027 and one for exams after it. This quiz uses five study topics that cut across both lists, so it works whichever date you test on.
How much math is on the UT Level 2 exam?
Less than people fear. A handful of formulas cover most of it: wavelength, near field, Snell's law, skip distance and depth, and decibels. Each one is a short calculator job once you have drawn the beam path. Six of the questions here are worked problems, and the UT formulas guide has a worked example for every formula.
Are these real UT exam questions?
No. Every question, number and explanation here is our own, written from public ultrasonic physics. None comes from an exam, a recalled item or a code book. Exam bodies own their questions and candidates sign agreements not to share them, so a page that claims to show the real ones is either wrong or breaking that agreement.