Processing Radiographs and Quality Control Practice Questions
20 free Processing Radiographs and Quality Control practice questions for the CDA. Tap an option to answer — you get instant feedback, the correct answer, and a detailed explanation for every question.
What is the main purpose of quality control in radiograph processing?
- A To decrease the number of patient appointments
- B To ensure consistent, diagnostic-quality images
- C To reduce the need for digital imaging sensors
- D To speed up the X-ray machine warm-up time
Correct answer: To ensure consistent, diagnostic-quality images
Quality control ensures radiographs meet diagnostic standards. It minimizes errors and repeat exposures.
A radiograph that appears too light is most likely caused by:
- A Overdevelopment
- B Underdevelopment
- C Excessive exposure time
- D High-temperature processing
Correct answer: Underdevelopment
Underdevelopment results in insufficient chemical action. This produces a radiograph with light density and reduced contrast.
Which factor MOST influences the sharpness of a radiographic image?
- A Processing temperature
- B Focal spot size
- C Color of the film packet
- D Darkroom wall color
Correct answer: Focal spot size
A smaller focal spot increases image sharpness. It reduces penumbra and improves detail.
A digital radiograph showing pixelation is most likely caused by:
- A Low sensor resolution
- B Overexposure of the sensor
- C Incorrect film processing
- D Poor darkroom ventilation
Correct answer: Low sensor resolution
Low-resolution sensors produce pixelated images. Higher resolution improves clarity and diagnostic value.
Fogged film is most commonly caused by:
- A Expired or poorly stored film
- B Incorrect sensor placement
- C Excessive beam collimation
- D Overuse of lead apron shielding
Correct answer: Expired or poorly stored film
Fogging occurs when film is exposed to heat, radiation, or expired chemicals. It lowers contrast and reduces diagnostic quality.
The coin test evaluates the effectiveness of:
- A Darkroom light leaks
- B Developer activity
- C Sensor calibration
- D Exposure settings
Correct answer: Darkroom light leaks
The coin test detects unsafe light levels in the darkroom. It identifies light leaks that may fog film.
What is the proper action if processing chemicals appear cloudy or contaminated?
- A Add cold water to dilute them
- B Continue using them until empty
- C Replace them immediately
- D Increase the film exposure time
Correct answer: Replace them immediately
Contaminated chemicals produce poor-quality images. Replacing them restores correct processing.
What causes film reticulation during processing?
- A Sudden solution temperature shifts
- B Weak or depleted fixer solution
- C Underexposure of the film packet
- D Using very fast-speed film
Correct answer: Sudden solution temperature shifts
Rapid temperature shifts cause emulsion cracking, resulting in a reticulated appearance. Consistent temperature prevents this issue.
Which error results in a completely clear processed film?
- A Film exposed to light
- B Film placed backward in the packet
- C No exposure to radiation
- D Overdeveloped film
Correct answer: No exposure to radiation
If no radiation contacts the film before processing, the emulsion remains unaltered and washes off entirely, leaving a clear film.
How should digital sensors be maintained for optimal quality?
- A Fully immersed in disinfectant solution
- B Stored under bright ambient light
- C Cleaned with approved sensor wipes
- D Wrapped tightly in cotton gauze
Correct answer: Cleaned with approved sensor wipes
Proper cleaning with approved products prevents damage and ensures accurate image capture. Sensor integrity is essential for quality.
What is the primary cause of dark radiographic films?
- A Underdevelopment of the film
- B Overexposure or overdevelopment
- C Using old or expired film
- D Cool processing solution temperatures
Correct answer: Overexposure or overdevelopment
Excess exposure or development increases image density. This produces overly dark films.
The step-wedge test is used to evaluate:
- A Fixer strength only
- B Developer solution uniformity
- C Exposure time accuracy
- D Image contrast consistency
Correct answer: Image contrast consistency
Step wedges show multiple density levels. They are used to assess consistency in contrast and processing quality.
Which quality control procedure ensures chemicals remain at the correct strength?
- A Daily replenishment
- B Monthly equipment replacement
- C Random chemical dilution
- D Storing chemicals in warm rooms
Correct answer: Daily replenishment
Daily replenishment keeps developer and fixer effective. Proper chemical strength is essential for quality processing.
What results from placing the film backward in the patient's mouth?
- A A completely blank and clear film
- B A herringbone or tire-track pattern
- C A noticeably overexposed film
- D A magnified, enlarged image
Correct answer: A herringbone or tire-track pattern
The lead foil backing creates a herringbone pattern. Image density is also reduced.
Which of the following indicates fixer exhaustion?
- A Light spots across the film
- B Yellow-brown film staining
- C Increased overall image contrast
- D Noticeably faster processing times
Correct answer: Yellow-brown film staining
Depleted fixer fails to fully clear undeveloped silver halide crystals. This results in yellow-brown staining.
What happens if films are not adequately washed after fixing?
- A Noticeably improved image contrast
- B Permanent staining and image loss
- C Significantly faster drying time
- D Increased overall image sharpness
Correct answer: Permanent staining and image loss
Insufficient washing leaves chemical residue. Over time this causes staining and reduces image longevity.
Which artifact is caused by bending the film packet?
- A A generalized film fog
- B A cone-cut clear border
- C An elongated, stretched image
- D Black crescent-shaped marks
Correct answer: Black crescent-shaped marks
Bending damages the film emulsion. This appears as dark crescent-shaped marks on the processed film.
What is the purpose of a quality assurance log for radiography?
- A To track patient appointment scheduling times
- B To document errors, retakes, and corrections
- C To replace routine monthly equipment checks
- D To monitor office supply inventory levels
Correct answer: To document errors, retakes, and corrections
A QA log records performance and errors. This supports improvement and regulatory compliance.
Which factor most affects digital radiograph exposure consistency?
- A Sensor calibration and software setup
- B Film packet integrity and sealing
- C Adequate darkroom ventilation levels
- D Developer solution temperature control
Correct answer: Sensor calibration and software setup
Digital systems rely on correct calibration and software processing. These factors ensure consistent image quality.
An automatic processor producing films with roller marks requires:
- A Complete developer chemical replacement
- B Roller cleaning or maintenance
- C Increasing the film exposure time
- D Switching to manual processing only
Correct answer: Roller cleaning or maintenance
Dirty or worn rollers cause repeating marks. Cleaning restores proper processing performance.