Texas Radiologic Technologist Licensing E
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xam Practice Test Questions And Correct
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Answers (Verified Answers) Plus Rational h h h h
es 2026 Q&A | Instant Download Pdf
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1. What is the purpose of the collimator in radiographic imaging?
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A. To increase patient dose
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B. To restrict the size of the x-ray beam
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C. To enhance contrast resolution
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D. To control exposure time
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Collimators restrict the x- h h h
ray beam to the area of interest, reducing scatter radiation and unnecessary
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hexposure.
2. The unit used to measure radiation dose to the patient is:
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A. Roentgen
B. Becquerel
C. Gray (Gy) h
D. Sievert (Sv) h
The Gray (Gy) measures absorbed dose, which is the amount of radiation ener
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gy absorbed per unit mass.
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, 3. Which of the following is considered a stochastic effect of radiation e
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xposure?
A. Skin erythema h
B. Cancer
C. Cataract formation h
D. Radiation burns h
Stochastic effects are random and include cancer and genetic mutations wit
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h no threshold dose.
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4. The primary advantage of digital radiography over film-
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based imaging is: h h
A. Reduced patient cooperation h h
B. Increased spatial resolution h h
C. Post-processing image manipulation h h
D. Higher radiation dose h h
Digital systems allow for image enhancement, annotation, and adjustment
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after acquisition, improving diagnostic accuracy.
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5. In fluoroscopy, the exposure rate at the tabletop should not exceed:
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A. 5 R/min
h
B. 8 R/min
h
C. 10 R/min h
D. 15 R/min h
The FDA limits the exposure rate during fluoroscopy to 10 R/min under norm
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al operation.
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6. The law that protects patient confidentiality in medical imaging is:
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A. OSHA
B. HIPAA
, C. FDA
D. NRC
HIPAA (Health Insurance Portability and Accountability Act) governs patien
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t privacy and medical record confidentiality.
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7. The radiographic contrast is primarily affected by:
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A. mA
B. Exposure time h
C. SID
D. kVp
kVp (kilovolt peak) controls the penetrating ability of the beam and directly
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influences image contrast. h h
8. Which interaction with matter is most responsible for contrast in
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diagnostic radiography? h
A. Compton scattering h
B. Pair production
h
C. Photoelectric effect h
D. Coherent scattering h
The photoelectric effect is more likely to occur in denser materials and produ
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ces high image contrast.
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9. The best way to reduce occupational exposure is:
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A. Wearing gloves h
B. Increasing distance from the source h h h h
C. Increasing mA h
D. Repeating exposures h
Following the inverse square law, increasing distance significantly reduces e
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xposure.
h h h h
xam Practice Test Questions And Correct
h h h h h h
Answers (Verified Answers) Plus Rational h h h h
es 2026 Q&A | Instant Download Pdf
h h h h h h
1. What is the purpose of the collimator in radiographic imaging?
h h h h h h h h h h
A. To increase patient dose
h h h
B. To restrict the size of the x-ray beam
h h h h h h h
C. To enhance contrast resolution
h h h
D. To control exposure time
h h h
Collimators restrict the x- h h h
ray beam to the area of interest, reducing scatter radiation and unnecessary
h h h h h h h h h h h
hexposure.
2. The unit used to measure radiation dose to the patient is:
h h h h h h h h h h
A. Roentgen
B. Becquerel
C. Gray (Gy) h
D. Sievert (Sv) h
The Gray (Gy) measures absorbed dose, which is the amount of radiation ener
h h h h h h h h h h h h
gy absorbed per unit mass.
h h h h
, 3. Which of the following is considered a stochastic effect of radiation e
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xposure?
A. Skin erythema h
B. Cancer
C. Cataract formation h
D. Radiation burns h
Stochastic effects are random and include cancer and genetic mutations wit
h h h h h h h h h h
h no threshold dose.
h h h
4. The primary advantage of digital radiography over film-
h h h h h h h
based imaging is: h h
A. Reduced patient cooperation h h
B. Increased spatial resolution h h
C. Post-processing image manipulation h h
D. Higher radiation dose h h
Digital systems allow for image enhancement, annotation, and adjustment
h h h h h h h h h
after acquisition, improving diagnostic accuracy.
h h h h
5. In fluoroscopy, the exposure rate at the tabletop should not exceed:
h h h h h h h h h h
A. 5 R/min
h
B. 8 R/min
h
C. 10 R/min h
D. 15 R/min h
The FDA limits the exposure rate during fluoroscopy to 10 R/min under norm
h h h h h h h h h h h h
al operation.
h
6. The law that protects patient confidentiality in medical imaging is:
h h h h h h h h h
A. OSHA
B. HIPAA
, C. FDA
D. NRC
HIPAA (Health Insurance Portability and Accountability Act) governs patien
h h h h h h h h
t privacy and medical record confidentiality.
h h h h h
7. The radiographic contrast is primarily affected by:
h h h h h h
A. mA
B. Exposure time h
C. SID
D. kVp
kVp (kilovolt peak) controls the penetrating ability of the beam and directly
h h h h h h h h h h h h
influences image contrast. h h
8. Which interaction with matter is most responsible for contrast in
h h h h h h h h h h
diagnostic radiography? h
A. Compton scattering h
B. Pair production
h
C. Photoelectric effect h
D. Coherent scattering h
The photoelectric effect is more likely to occur in denser materials and produ
h h h h h h h h h h h h
ces high image contrast.
h h h
9. The best way to reduce occupational exposure is:
h h h h h h h
A. Wearing gloves h
B. Increasing distance from the source h h h h
C. Increasing mA h
D. Repeating exposures h
Following the inverse square law, increasing distance significantly reduces e
h h h h h h h h h
xposure.
