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Colorado Radiographic Testing Technician Certification Exam Questions and Correct Answers

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prepare for the Colorado Radiographic Testing Technician Certification Exam with this comprehensive study guide featuring realistic exam-style questions and correct answers. This resource covers radiographic testing principles, non-destructive testing (NDT) methods, X-ray and gamma ray operations, radiation safety and protection standards, film processing and digital radiography, image interpretation techniques, exposure control, equipment calibration, defect detection in welds and materials, quality assurance procedures, regulatory compliance, and documentation practices. Designed for NDT technicians and inspection professionals, this guide strengthens technical imaging knowledge, improves defect evaluation accuracy, and builds confidence for certification success.

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COLORADO RADIOGRAPHIC TESTING TECHNICIAN CERTIFICA
Course
COLORADO RADIOGRAPHIC TESTING TECHNICIAN CERTIFICA

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COLORADO RADIOGRAPHIC TESTING TECHNICIAN
CERTIFICATION EXAM QUESTIONS AND CORRECT
ANSWERS (VERIFIED ANSWERS) Q&A 2026
|INSTANT DOWNLOAD PDF
1. What type of radiation is used in industrial radiographic
testing?
A. Alpha particles
B. Gamma rays and X-rays
C. Infrared waves
D. Sound waves
Rationale: Radiographic testing relies on penetrating
electromagnetic radiation.
Correct Answer: B. Gamma rays and X-rays


2. The main purpose of radiographic testing is to detect:
A. Surface color changes
B. Internal discontinuities
C. Electrical resistance
D. Magnetic fields
Rationale: RT reveals internal flaws not visible externally.
Correct Answer: B


3. Which property allows X-rays to penetrate materials?

,A. High density
B. Short wavelength and high energy
C. Low frequency
D. Magnetic force
Rationale: High-energy photons penetrate matter.
Correct Answer: B


4. Radiation exposure is measured in:
A. Ohms
B. Pascals
C. Sieverts or rem
D. Watts
Rationale: Dose units quantify biological effect.
Correct Answer: C


5. The device used to produce X-rays is called:
A. Geiger counter
B. X-ray tube
C. Dosimeter
D. Collimator
Rationale: X-ray tubes generate radiation electronically.
Correct Answer: B


6. Gamma rays in industrial radiography come from:

,A. Electrical generators
B. Radioactive isotopes
C. Sound vibration
D. Lasers
Rationale: Isotopes like Ir-192 emit gamma rays.
Correct Answer: B


7. A radiograph is best described as a:
A. Magnetic image
B. Visual image of internal structure
C. Sound wave pattern
D. Thermal map
Rationale: It is a shadow image of internal features.
Correct Answer: B


8. The darker areas on a radiograph indicate:
A. High density
B. Low density or more exposure
C. No radiation
D. Magnetic interference
Rationale: More radiation passes through thin areas.
Correct Answer: B


9. A discontinuity refers to:

, A. Smooth surface
B. Break in material structure
C. Paint defect
D. Temperature change
Rationale: Discontinuities are flaws in materials.
Correct Answer: B


10. Which is NOT a common RT discontinuity?
A. Porosity
B. Cracks
C. Weld slag
D. Electrical resistance
Rationale: Electrical resistance is not a defect type.
Correct Answer: D


11. Film radiography uses:
A. Sound waves
B. Photographic film
C. Magnetic sensors
D. Heat sensors
Rationale: Film captures radiation exposure.
Correct Answer: B


12. The function of a collimator is to:
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COLORADO RADIOGRAPHIC TESTING TECHNICIAN CERTIFICA
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COLORADO RADIOGRAPHIC TESTING TECHNICIAN CERTIFICA

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Uploaded on
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Written in
2025/2026
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