UUS Practice Tests⌕ Search
Industrial Inspection · API QUTE (M)

API QUTE (M) Qualification of Ultrasonic Testing Examiners - Manual Examination Practice Test

API QUTE (M) Manual Examination practice covers conventional ultrasonic testing performed with manually positioned probes. Its subject matter includes sound-path calibration, distance-amplitude correction, couplant use, angle-beam scanning, and interpretation of echo position and amplitude. These concepts support consistent examination of welds and components while accounting for access, geometry, and instrument settings.

Exam overview

Exam providerAmerican Petroleum Institute Individual Certification Programs
Exam codeAPI QUTE (M)
CategoryIndustrial Inspection

About the API QUTE (M) Qualification of Ultrasonic Testing Examiners - Manua… Exam

Manual UT requires the examiner to relate instrument readings to probe position, beam direction, sound path, and component geometry. Calibration and range or material-velocity settings affect where indications appear on the display, while DAC helps compare reflector responses at different sound paths. Probe choice and wedge geometry influence beam entry and direction; couplant transfers sound across the probe-to-surface interface. Scanning from multiple directions can help assess whether an indication is detectable from alternate beam paths. Examiners also need to recognize limitations such as near-surface response overlap and changes in back-wall echo timing associated with thickness variation. During field work, recording examination progress and instrument settings supports continuity when scanning is interrupted and resumed. Interpretation should distinguish observed signal behavior from conclusions that require procedure-specific acceptance criteria.

Sample Practice Questions

Review a selection from this exam's published US Practice Tests practice bank.

Question 1

A distance-amplitude correction (DAC) curve is established using reflectors at several sound paths. What does the curve principally help account for?

  1. AChanges in reflected signal amplitude with sound path under the calibration setup
  2. BChanges in component chemistry with depth
  3. CThe exact orientation of every discontinuity in the component
  4. DThe effect of probe pressure on the material’s elastic modulus
Show answerCorrect answer: A

A DAC curve provides a reference for how responses from equivalent reflectors vary with sound path in the calibration arrangement, supporting comparison of indications at different distances.

Question 2

A manual examination is interrupted and later resumed. Which practice best supports continuity and traceability?

  1. ARecord the examination status and relevant setup information, then verify the setup before continuing
  2. BAssume the instrument settings remained unchanged and omit any notes
  3. CRestart at an arbitrary location and disregard prior coverage
  4. DChange the scan pattern to save time without authorization
Show answerCorrect answer: A

Recording status and relevant setup details helps maintain traceability and avoid missed or duplicated coverage. Before resuming, the examiner should confirm that equipment and examination conditions remain suitable under the procedure.

Question 3

A manual examiner is checking a weld with an angle-beam probe. Why is it useful to scan from more than one direction when practical?

  1. ADifferent beam directions can improve the chance that a planar reflector returns energy toward the probe.
  2. BScanning from multiple directions eliminates the need for calibration.
  3. CThe sound velocity changes whenever the probe direction changes.
  4. DA second direction makes every indication a volumetric flaw.
Show answerCorrect answer: A

Planar reflectors can be strongly directional. Changing the beam direction can provide a more favorable reflection path, though it does not guarantee detection or replace required procedures.

Question 4

What is the primary purpose of couplant during manual ultrasonic testing?

  1. ATo increase the electrical output of the instrument
  2. BTo displace air between the probe and test surface so ultrasound can enter the material
  3. CTo prevent all mode conversion at the surface
  4. DTo permanently bond the probe to the component
Show answerCorrect answer: B

Air between the probe and test surface strongly reflects ultrasound. Couplant provides an acoustic path across that interface and helps transmit sound into the component.

Question 5

A weld examination procedure calls for scanning from both sides of the weld where access permits. What is a sound reason for following that instruction?

  1. AIt guarantees that every discontinuity will be detected
  2. BIt can provide different beam paths and improve opportunities to intercept favorably oriented reflectors
  3. CIt removes the need to calibrate the instrument
  4. DIt makes weld geometry signals impossible
Show answerCorrect answer: B

Scanning from different sides can change beam direction and coverage, which may improve detection or characterization of reflectors that respond poorly from one direction. It does not guarantee detection or replace calibration and procedure requirements.

Question 6

A manual examiner finds that a measured indication location changes after the instrument range or material velocity setting is altered. What is the most appropriate interpretation?

  1. AThe displayed location depends on the instrument's time-to-distance setup, so the setup should be checked against the examination requirements
  2. BThe reflector must have physically moved
  3. CThe probe has become a different wave mode automatically
  4. DThe indication is necessarily nonrelevant
Show answerCorrect answer: A

The display converts time into a distance or path scale using instrument settings, including range and velocity. A change in those settings can change displayed location without any physical change to the reflector.

Question 7

What is the usual purpose of a wedge in an angle-beam ultrasonic probe?

  1. ATo introduce sound into the component at a selected angle and provide probe-to-surface coupling
  2. BTo convert every longitudinal wave in the component into a surface wave
  3. CTo eliminate the need for instrument calibration
  4. DTo determine discontinuity acceptance criteria directly
Show answerCorrect answer: A

A wedge couples the probe to the component and, through its geometry and acoustic properties, helps establish the intended refracted beam angle. It does not replace calibration or evaluation criteria.

How to use this practice test

The free practice bank contains 50 questions; each session presents up to 20 random questions and displays results afterward. Use a session to check your reasoning about calibration, probe movement, beam paths, and signal interpretation. For missed items, identify the underlying UT concept and work through how the instrument setting or scan position affects the observation.

Preparation tips

  • Sketch how a DAC curve compares reflector responses at different sound paths, and distinguish that comparison from a pass/fail decision.
  • Trace angle-beam paths through a weld from each accessible scan direction; note how probe orientation changes the volume insonified.
  • Review how range and material-velocity settings affect displayed sound-path and location measurements before interpreting an indication.
  • Compare straight-beam back-wall echo timing in adjacent regions of different thickness, and connect timing changes to the sound path.
  • Practice documenting scan coverage, probe position, instrument settings, and interruption points so an examination can be resumed traceably.
Official sourceOfficial exam page ↗Official exam guide ↗