NVCC RAD 105 Final
Comprehensive Resource To Help You Ace 2026-2027
Includes Frequently Tested Questions With ELABORATED
100% Correct COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!!
Current Update!!
1. What is fluoroscopy?
A. A static X-ray imaging technique
B. A form of ultrasound imaging
C. Live X-ray imaging used to visualize motion and guide procedures
D. A post-processing digital imaging method
Correct Answer: C. Live X-ray imaging used to visualize motion and guide procedures
2. Which component primarily enhances image quality in fluoroscopy?
A. Flat-panel detector
B. Collimator
C. Image intensifier tube
D. Photodiode array
Correct Answer: C. Image intensifier tube
3. What are the primary purposes of fluoroscopy?
A. To measure radiation dose and image contrast
B. To observe moving anatomy and guide medical procedures
C. To reduce patient exposure
D. To produce high-resolution static images
Correct Answer: B. To observe moving anatomy and guide medical procedures
,4. What were early limitations of fluoroscopy?
A. Excessive image contrast
B. High spatial resolution
C. Poor image quality and risk of tube burnout
D. Excessive digital noise
Correct Answer: C. Poor image quality and risk of tube burnout
5. What is the function of the input phosphor in the image intensifier tube?
A. Converts electrons into light
B. Converts X-rays into visible light
C. Converts light into a digital signal
D. Focuses electrons
Correct Answer: B. Converts X-rays into visible light
6. What process occurs at the photocathode during fluoroscopy?
A. X-rays are converted to electrons
B. Electrons are converted to light
C. Visible light is converted into electrons
D. Photons are amplified
Correct Answer: C. Visible light is converted into electrons
7. Minification gain refers to:
A. Increased contrast due to low kVp
B. Reduction in image noise
C. Increased brightness caused by electron focusing to a smaller output phosphor
D. Increased spatial resolution
Correct Answer: C. Increased brightness caused by electron focusing to a smaller output
phosphor
8. How does Automatic Brightness Control (ABC) function?
, A. It maintains constant mAs
B. It adjusts technical factors to maintain image brightness
C. It controls patient positioning
D. It controls exposure time only
Correct Answer: B. It adjusts technical factors to maintain image brightness
9. What is the difference between ABC and AEC?
A. ABC controls exposure time; AEC controls kVp
B. ABC maintains output brightness; AEC maintains receptor exposure
C. ABC reduces dose; AEC increases dose
D. There is no difference
Correct Answer: B. ABC maintains output brightness; AEC maintains receptor exposure
10. Pincushion distortion in fluoroscopy is caused by:
A. Flat output phosphor
B. Scatter radiation
C. Curved input phosphor
D. Improper collimation
Correct Answer: C. Curved input phosphor
11. What is the purpose of Analog-to-Digital Conversion (ADC) in fluoroscopy?
A. To reduce scatter radiation
B. To increase contrast
C. To convert the light image into a digital signal
D. To store images
Correct Answer: C. To convert the light image into a digital signal
12. How is magnification achieved in fluoroscopy?
A. Increasing SID
B. Increasing kVp
Comprehensive Resource To Help You Ace 2026-2027
Includes Frequently Tested Questions With ELABORATED
100% Correct COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!!
Current Update!!
1. What is fluoroscopy?
A. A static X-ray imaging technique
B. A form of ultrasound imaging
C. Live X-ray imaging used to visualize motion and guide procedures
D. A post-processing digital imaging method
Correct Answer: C. Live X-ray imaging used to visualize motion and guide procedures
2. Which component primarily enhances image quality in fluoroscopy?
A. Flat-panel detector
B. Collimator
C. Image intensifier tube
D. Photodiode array
Correct Answer: C. Image intensifier tube
3. What are the primary purposes of fluoroscopy?
A. To measure radiation dose and image contrast
B. To observe moving anatomy and guide medical procedures
C. To reduce patient exposure
D. To produce high-resolution static images
Correct Answer: B. To observe moving anatomy and guide medical procedures
,4. What were early limitations of fluoroscopy?
A. Excessive image contrast
B. High spatial resolution
C. Poor image quality and risk of tube burnout
D. Excessive digital noise
Correct Answer: C. Poor image quality and risk of tube burnout
5. What is the function of the input phosphor in the image intensifier tube?
A. Converts electrons into light
B. Converts X-rays into visible light
C. Converts light into a digital signal
D. Focuses electrons
Correct Answer: B. Converts X-rays into visible light
6. What process occurs at the photocathode during fluoroscopy?
A. X-rays are converted to electrons
B. Electrons are converted to light
C. Visible light is converted into electrons
D. Photons are amplified
Correct Answer: C. Visible light is converted into electrons
7. Minification gain refers to:
A. Increased contrast due to low kVp
B. Reduction in image noise
C. Increased brightness caused by electron focusing to a smaller output phosphor
D. Increased spatial resolution
Correct Answer: C. Increased brightness caused by electron focusing to a smaller output
phosphor
8. How does Automatic Brightness Control (ABC) function?
, A. It maintains constant mAs
B. It adjusts technical factors to maintain image brightness
C. It controls patient positioning
D. It controls exposure time only
Correct Answer: B. It adjusts technical factors to maintain image brightness
9. What is the difference between ABC and AEC?
A. ABC controls exposure time; AEC controls kVp
B. ABC maintains output brightness; AEC maintains receptor exposure
C. ABC reduces dose; AEC increases dose
D. There is no difference
Correct Answer: B. ABC maintains output brightness; AEC maintains receptor exposure
10. Pincushion distortion in fluoroscopy is caused by:
A. Flat output phosphor
B. Scatter radiation
C. Curved input phosphor
D. Improper collimation
Correct Answer: C. Curved input phosphor
11. What is the purpose of Analog-to-Digital Conversion (ADC) in fluoroscopy?
A. To reduce scatter radiation
B. To increase contrast
C. To convert the light image into a digital signal
D. To store images
Correct Answer: C. To convert the light image into a digital signal
12. How is magnification achieved in fluoroscopy?
A. Increasing SID
B. Increasing kVp
