Free MT L2 sample questions

These 5 practice questions come from the course, each with a full explanation. Nothing to sign up for.

Practice set

1. Principles

As a steel is driven closer to saturation, what happens to the extra flux density gained for each added unit of magnetizing force?

It falls to near that of airIt rises to its largest valueIt stays exactly constantIt reverses and becomes negative

2. Flux Fields

The same DC is passed through a steel tube and a solid steel bar with the same outside diameter. How does the field at the tube's outside surface compare?

About half that of the solid barAbout the same as the solid bar'sAbout twice as strong as the solid barZero, the same as at the tube's bore

3. Equipment

A technician uses a DC yoke instead of an AC yoke on a smooth plate to look for fine surface cracks. Compared with the AC yoke, what is the usual drawback?

The field reaches less deeply into the part, so subsurface flaws become harder to detectThe poles must be set farther apart, so the area covered by each shot is smallerParticles move less on the surface, so the smallest surface flaws are harder to showThe yoke heats the part surface, so arc strikes are more likely at each pole

4. Types of Discontinuities

Which combination of conditions is needed for stress-corrosion cracking?

Cyclic stress, a hardened surface and a sharp notch at a thread rootCompressive stress, a soft material and a dry, clean environmentRapid cooling, high hardness and hydrogen from damp electrodesTensile stress, a susceptible material and a corrosive environment

5. Evaluation Techniques

A sharp line of particles follows the fusion line of a weld joining carbon steel to austenitic stainless steel. Which check best separates a surface crack from a permeability boundary?

A second MT shot at a higher current levelLiquid penetrant testing of the same areaA field indicator held on the fusion lineDry powder in place of the wet particles

The MT L2 course

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6modules of lessonsEvery task on the outline
5full-length timed exams50 questions in 120 minutes each
250practice questionsEach one explained
7worked calculationsStep by step
1week-by-week study planSet to your exam date

Turn a practice answer into a study step. In untimed practice, ask Echo AI about any question you answer, follow up, then see your weakest topics and what to drill next.

See all 6 modules

Magnetism and magnetic fields
Leakage fields and magnetizing current
Choosing the technique and demagnetizing
Equipment, particles and lighting
Discontinuities and where they come from
Evaluating indications and controlling the process

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Every answer comes with a full explanation.

Questions are original and written to ASNT's published content outline. Code is cited by section number so you can look it up in your own copy. Think something is wrong? Report it.

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Practice set

Free MT L2 study plan

Ready for the rest? The full course