Non-Destructive Testing

Training Exercise Hub

Interactive practice for radiographic, ultrasonic, and weld inspection topics. Work through the exercises below; ask the tutor when you get stuck.

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Class Review

Games · 2 activities

MT Jeopardy
Magnetic particle · team quiz
PT Jeopardy
Penetrant · team quiz · timed

Radiographic Testing

RT · 14 exercises

Film Radiography, Step by Step
Darkroom · exposure · tank processing · viewing
Computed Radiography (CR), Step by Step
Imaging plate · scan & erase · window/level
Digital Radiography (DR), Step by Step
Flat panel · check shot · frame averaging
Radiation Safety Flashcards
21 cards · ASNT trainee
Geometric Unsharpness Math
Ug, minimum SOD & SFD
Half-Life
Ir-192 & Co-60 source decay
Half-Value Layer
Exposure calculation
HVL — Counting
Layer counting practice
HVL — Reduction
Intensity reduction
Dose Rate & Time
Exposure timing
Inverse Square — Distance
Solve for distance
Inverse Square — Intensity
Solve for intensity
Radiography Calculator
Combined parameters
Distance Exercises
Practice set
X-ray vs Gamma Ray
Source comparison
Radiation Safety Triads
Time · distance · shielding

Penetrant Testing

PT · 10 exercises

Solvent Removable Technique
Method C · Visible dye
Water Washable · Wet Developer
Method A · Tank line, aqueous
Water Washable · Dry Powder
Method A · Tank line, dust chamber
Lipophilic Emulsifier Line
Method B · Post-emulsifiable
Hydrophilic Remover Line
Method D · Post-emulsifiable
Capillary Action & Dwell Time
Theory · Why dwell matters
Daily TAM Panel Check
Process control · PSM-5 system check
Aluminum Comparator Block
Material verification · A/B test
Emulsifier QA Check
Process control · Refractometer
Developer QA Check
Process control · Specks & hydrometer

Magnetic Particle Testing

MT · 5 exercises

The Skin Effect
AC vs DC penetration
Magnetization Techniques
Field & current directions
Demagnetization
AC yoke · slow withdrawal
Coil: Shot & Demag
One coil · magnetize then demag
Residual Technique
Magnetize first, particles after

Eddy Current Testing

ET · 4 lessons

Faraday's Law & Eddy Currents
Step-by-step · induction to flaw detection · checks
The Hall Effect & Eddy Currents
3D step-by-step · Hall sensors vs coils · lab probes · checks
The Impedance Plane
Narrated lesson · checkpoints · sandbox · quiz
Frequency and Thickness
Narrated lesson · cross-section · sandbox · quiz

Ultrasonic Testing

UT · 17 exercises

Scan Plan Builder
Angle beam · skip distance
6dB Drop Sizing
Flaw sizing technique
6dB Drop — Test
Practice test
Maze Trace
Sound path tracing
Wave Modes — Particle Motion
Longitudinal · shear · Rayleigh · Lamb
Gain & Decibels
A-scan · back wall · 20 → 80 → 40 %
Label the Beams
Incident · reflected · refracted
FPADSCRYN — Frequency Effects
Slider · nine-letter zigzag · drill
Critical Angles — Wedge Builder
Drag & drop · what enters the steel
Mode Conversion
L-wave / S-wave
Angle Beam Sound Path
Legs · skip · corner trap
The Reflector Must Face the Beam
Root crack · tilt a flat flaw
Weld Inspection: Wedge vs Bevel
Bevel + wedge = 90° · legs · both sides
One-Sided Access: Leg 3
Far-side fusion face · A-scan range
Weld Scan Coverage · Plate UT-14225
45° or 60° wedge · root, middle, toe, HAZ · both sides
Weld Scan Planner
FlawTech kit UT-14221–14230 · your wedge & BEP · full coverage
Probe Delay vs Display Delay
Animated lesson · Epoch zero offset & delay

Epoch 650 Trainer

UT Level I · hands-on

Range
Echoes on screen · reading stays put
Gain & dB
AUTO 80% · the 6 dB rule
Two-step calibration
Cal-Zero 0.200 · Cal-Vel 0.500
Two back-wall calibration
One step · 1st & 2nd back wall

Weld & Materials

General · 7 exercises

Anode Heel Effect
X-ray tube geometry
Atomic Structure
Diagram builder
Isotope Builder
Ir-192 / Co-60 / Se-75
Welding Scale
Measurement practice
Concavity Gauge
Weld profile
Fillet Gauge
Fillet weld sizing
V-WAC Gauge
Undercut · crown · porosity