NDT Level II Exam Prep Free practice test →

Free NDT Level II Practice Questions

10 free, exam-style ASNT NDT Level II Certification (NDT Level II) practice questions with answers and explanations. No signup required. Work through them below, then take the full free NDT Level II practice test to study every exam domain.

The NDT Level II exam has 90 questions and runs 4 hours.

These 10 free NDT Level II questions are organized by exam domain, so you can see how each part of the ASNT NDT Level II Certification blueprint is tested. Reveal the answer and explanation under each question.

Domain 1: Principles and Theory of the NDT Method (varies by method)

Question 1

For a 25 mm thick plate inspected with a 45° shear wave probe, the skip distance is:

  1. 25 mm
  2. 50 mm
  3. 35.4 mm
  4. 17.7 mm
Show answer & explanation

Correct answer: B - 50 mm

Question 2

If an indication found with a 60° probe plots at the weld root centerline of a single-V joint, the MOST likely discontinuity is:

  1. Slag inclusion trapped at root
  2. Lack of sidewall fusion defect
  3. Incomplete penetration
  4. Transverse cracking at root
Show answer & explanation

Correct answer: C - Incomplete penetration

Domain 2: Equipment and Materials (varies by method)

Question 3

If the SFD is increased from 24 inches to 48 inches, the exposure time must be multiplied by a factor of:

  1. 2
  2. 4
  3. 8
  4. 0.5
Show answer & explanation

Correct answer: B - 4

Question 4

Tungsten inclusions on a radiograph appear as:

  1. Dark, round spots like porosity
  2. Dark, irregular elongated shapes like slag
  3. Light spots or irregular shapes
  4. A dark continuous line at the weld root
Show answer & explanation

Correct answer: C - Light spots or irregular shapes

Domain 3: Techniques and Calibration (varies by method)

Question 5

A long cylindrical shaft needs to be inspected for transverse cracks. The MOST appropriate magnetization method is:

  1. Circular magnetization using a head shot
  2. Longitudinal magnetization using a coil or yoke
  3. Prod contacts placed along the length of the shaft
  4. Central conductor technique
Show answer & explanation

Correct answer: B - Longitudinal magnetization using a coil or yoke

Question 6

An MT technician finds a strong, sharp, linear indication on a ground weld surface that is perpendicular to the grinding direction. This MOST likely represents:

  1. A non-relevant indication from the grinding marks
  2. A grinding crack caused by improper grinding technique
  3. Magnetic writing from a prior inspection
  4. A false indication from excess particles
Show answer & explanation

Correct answer: B - A grinding crack caused by improper grinding technique

Domain 4: Interpretation and Evaluation (varies by method)

Question 7

A penetrant system described as 'Type I, Method D, Level 3' uses:

  1. Visible dye, water-washable, low sensitivity
  2. Fluorescent penetrant, hydrophilic post-emulsifiable removal, high sensitivity
  3. Fluorescent penetrant, solvent-removable, medium sensitivity
  4. Visible dye, lipophilic post-emulsifiable, ultra-high sensitivity
Show answer & explanation

Correct answer: B - Fluorescent penetrant, hydrophilic post-emulsifiable removal, high sensitivity

Question 8

A PT technician notices that no indications are found on a part known to contain cracks. The MOST likely causes include all of the following **EXCEPT:**

  1. Discontinuity openings sealed by mechanical cleaning (peening, blasting)
  2. Over-washing that removed penetrant from the discontinuities
  3. Excessive developer dwell time
  4. Insufficient penetrant dwell time before removal
Show answer & explanation

Correct answer: C - Excessive developer dwell time

Domain 5: Procedures, Codes, and Standards (varies by method)

Question 9

An inspector observes intermittent undercut along the toe of a butt weld. The maximum depth at any point is measured at 1/64 inch. Per AWS D1.1 for statically loaded structures (limit is 1/32 inch), this undercut is:

  1. Unacceptable - intermittent undercut requires complete removal
  2. Acceptable - 1/64 inch is less than the 1/32 inch limit
  3. Requires repair welding to fill the undercut defect
  4. Needs ultrasonic testing to verify structural integrity
Show answer & explanation

Correct answer: B - Acceptable - 1/64 inch is less than the 1/32 inch limit

Question 10

An inspector finds a crack approximately 1/4 inch long at the toe of a fillet weld during VT. The correct disposition per AWS D1.1 is:

  1. Acceptable - cracks under 1/2 inch are permitted
  2. Unacceptable - all cracks are rejected regardless of size
  3. Acceptable with additional documentation required
  4. Acceptable if confirmed by MT as surface-only
Show answer & explanation

Correct answer: B - Unacceptable - all cracks are rejected regardless of size

The rest of the NDT Level II blueprint

The NDT Level II exam also covers these domains. Drill them in the full free practice test:

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