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Free Practice Questions for SCFHS Radiography Technician

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Exam Review

Key Facts: SCFHS Radiography Technician Exam

150

Official MCQ count

SCFHS Radiography Technician Blueprint 2024

3 hours

Official exam duration

SCFHS Radiography Technician Blueprint 2024

55%

Technician passing score

SCFHS Radiography Technician Blueprint 2024

17%

Largest blueprint section: General Anatomy

SCFHS Radiography Technician Blueprint 2024

Two Years Diploma

Minimum qualification in Radiography

Prometric SCFHS Minimum Qualifications PDF

Not published

Official exam fee in consulted sources

SCFHS/Prometric official sources consulted

SCFHS Radiography Technician is listed as an available professional classification exam by SCFHS and uses the 2024 Radiography Technician blueprint. Official logistics published in that blueprint are 150 MCQs, 3 hours, and a 55% passing score for Technician. The largest sections are General Anatomy 17%, X-ray 13%, Radiation Protection 12%, and 10% each for CT, MRI, Ultrasound, and Nuclear Medicine. Angio, Fluoroscopy, Patient Safety, and Professionalism/Ethics complete the blueprint. Official fee and pass-rate data were not published in the sources consulted.

Sample SCFHS Radiography Technician Practice Questions

Try these sample questions to review concepts for the SCFHS Radiography Technician exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Which principle best describes ALARA in diagnostic radiography?
A.Use the highest exposure factors to avoid repeats
B.Keep radiation exposure as low as reasonably achievable while obtaining diagnostic images
C.Avoid all imaging procedures that use ionizing radiation
D.Use shielding only when a patient requests it
Explanation: ALARA means keeping radiation exposure as low as reasonably achievable while still producing images that answer the clinical question. It requires appropriate justification, optimization of technique, collimation, shielding when appropriate, and avoiding unnecessary repeats.
2If a staff member doubles the distance from an X-ray source, what happens to scatter intensity under the inverse square law?
A.It is doubled
B.It is reduced to one half
C.It is reduced to one quarter
D.It is unchanged
Explanation: Radiation intensity varies inversely with the square of distance. Doubling distance reduces intensity to one fourth, so distance is a powerful protection method for staff and support persons.
3What is the main radiation protection benefit of tight collimation?
A.It increases the exposed tissue volume
B.It reduces irradiated tissue volume and scatter production
C.It removes the need for patient identification
D.It makes every image higher contrast regardless of technique
Explanation: Collimation limits the beam to the anatomy of interest. This reduces patient dose and scatter production, which can also improve image contrast.
4Before an abdominal radiograph on a patient of reproductive potential, which action best supports radiation safety?
A.Ignore pregnancy status if the request is urgent
B.Ask about pregnancy status and follow local policy before exposure
C.Use twice the normal mAs to finish quickly
D.Delay all imaging without contacting the referring team
Explanation: Pregnancy screening and policy-based escalation protect the embryo or fetus from unnecessary exposure while allowing justified urgent imaging to proceed safely. The technologist should document the response and communicate concerns before exposure.
5Which combination summarizes the classic external radiation protection methods for staff?
A.Time, distance, and shielding
B.Speed, contrast, and magnification
C.Window, level, and pitch
D.Frequency, gain, and depth
Explanation: Staff dose is reduced by minimizing exposure time, maximizing distance, and using shielding or barriers. These methods are central to safe work around X-ray and fluoroscopy equipment.
6During fluoroscopy, where is a collar dosimeter commonly worn when a lead apron is used?
A.Under the apron at waist level only
B.Outside the apron near the collar
C.Inside a pocket away from the room
D.On the patient table
Explanation: A collar dosimeter is commonly worn outside the apron near the thyroid or collar area to estimate exposure to unshielded head and neck tissues. Local policy may also require a second dosimeter under the apron for body dose estimation.
7What does added filtration in an X-ray tube mainly remove from the beam?
A.Low-energy photons that mostly increase skin dose
B.Only photons that create the final image
C.All scattered photons after they leave the patient
D.The need for exposure factor selection
Explanation: Added filtration removes lower-energy photons that would be absorbed superficially and contribute little to image formation. This hardens the beam and helps reduce unnecessary skin dose.
8Why can use of an anti-scatter grid increase patient dose if other factors are unchanged?
A.The grid absorbs some primary radiation, so exposure must often be increased to maintain receptor exposure
B.The grid creates radioactive contamination
C.The grid removes all patient motion
D.The grid eliminates the need for collimation
Explanation: A grid improves contrast by absorbing scatter, but it also absorbs some primary photons. To maintain adequate receptor exposure, technique often requires more mAs, which can increase patient dose.
9A support person must remain in the room during a pediatric exposure. Which instruction is most appropriate?
A.Stand in the primary beam to hold the child firmly
B.Wear protective apparel, avoid the primary beam, and stand as far from the source as practical
C.Remove all shielding so positioning is easier
D.Hold the image receptor directly with bare hands
Explanation: When a support person is necessary, they should be protected from the primary beam and scatter by distance, shielding, and careful positioning. Immobilization devices should be used when appropriate to reduce the need for people to hold patients.
10Which statement best distinguishes deterministic from stochastic radiation effects?
A.Deterministic effects have thresholds; stochastic effects are probability-based with no assumed safe threshold
B.Stochastic effects always occur immediately after exposure
C.Deterministic effects are unrelated to dose
D.Only stochastic effects involve tissue reactions such as skin injury
Explanation: Deterministic tissue reactions generally have threshold doses and severity increases with dose. Stochastic effects, such as cancer risk, are modeled as probability-based events where probability increases with dose.

About the SCFHS Radiography Technician Practice Questions

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