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. A decrease in object-to-image receptor distance (OID) will result in:
A. Increased magnification
B. Decreased image detail
C. Increased image detail
D. Increased distortion
Correct Answer: C. Increased image detail
2. Radiation exposure is directly proportional to:
A. kVp
B. SID
C. Filtration
D. mAs
Correct Answer: D. mAs
3. What is used to determine whether exposure factors were correct on a digital radiographic
image?
A. Histogram analysis
B. Signal-to-noise ratio
C. Exposure indicator (EI) number
D. Pixel size
Correct Answer: C. Exposure indicator (EI) number
,4. Image detail is primarily affected by:
A. kVp and filtration
B. Grid ratio and SID
C. Focal spot size and patient motion
D. mAs and collimation
Correct Answer: C. Focal spot size and patient motion
5. Of the following types of electromagnetic radiation, which has the shortest wavelength?
A. Radio waves
B. Microwaves
C. Visible light
D. X-rays
Correct Answer: D. X-rays
6. The primary purpose of rotating the X-ray tube anode is to:
A. Increase X-ray production efficiency
B. Reduce scatter radiation
C. Increase anode heat capacity
D. Improve image contrast
Correct Answer: C. Increase anode heat capacity
7. An imaginary photon emitted from the center of the focal spot and perpendicular to the long
axis of the X-ray tube is known as the:
A. Effective focal spot
B. Primary beam
C. Central ray
D. Anode ray
Correct Answer: C. Central ray
8. The vacuum enclosure of the X-ray tube is made of:
,A. Lead
B. Tungsten
C. Aluminum
D. Glass
Correct Answer: D. Glass
9. Which of the following materials is most readily penetrated by X-rays?
A. Bone
B. Muscle
C. Fat
D. Air
Correct Answer: D. Air
10. Which organization is responsible for education standards, ethics, and credentialing
examinations in radiologic sciences?
A. ASRT
B. ACR
C. ARRT
D. JRCERT
Correct Answer: C. ARRT
11. The relationship between X-ray photon energy and frequency is:
A. Inverse
B. Exponential
C. Random
D. Direct
Correct Answer: D. Direct
12. Which forearm bone is located laterally?
, A. Ulna
B. Radius
C. Humerus
D. Scaphoid
Correct Answer: B. Radius
13. The electron cloud that forms around a heated cathode filament is called:
A. Thermionic emission
B. Space charge
C. Electron binding energy
D. Bremsstrahlung
Correct Answer: B. Space charge
14. Grids or buckys are generally required for body parts measuring greater than:
A. 8 cm
B. 10–12 cm
C. 15 cm
D. 20 cm
Correct Answer: B. 10–12 cm
15. Who invented the fluoroscope and investigated hundreds of fluorescent materials?
A. Wilhelm Roentgen
B. Michael Faraday
C. Thomas Edison
D. William Coolidge
Correct Answer: C. Thomas Edison
16. Another term for remnant radiation is:
A. Primary radiation
B. Scatter radiation
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. A decrease in object-to-image receptor distance (OID) will result in:
A. Increased magnification
B. Decreased image detail
C. Increased image detail
D. Increased distortion
Correct Answer: C. Increased image detail
2. Radiation exposure is directly proportional to:
A. kVp
B. SID
C. Filtration
D. mAs
Correct Answer: D. mAs
3. What is used to determine whether exposure factors were correct on a digital radiographic
image?
A. Histogram analysis
B. Signal-to-noise ratio
C. Exposure indicator (EI) number
D. Pixel size
Correct Answer: C. Exposure indicator (EI) number
,4. Image detail is primarily affected by:
A. kVp and filtration
B. Grid ratio and SID
C. Focal spot size and patient motion
D. mAs and collimation
Correct Answer: C. Focal spot size and patient motion
5. Of the following types of electromagnetic radiation, which has the shortest wavelength?
A. Radio waves
B. Microwaves
C. Visible light
D. X-rays
Correct Answer: D. X-rays
6. The primary purpose of rotating the X-ray tube anode is to:
A. Increase X-ray production efficiency
B. Reduce scatter radiation
C. Increase anode heat capacity
D. Improve image contrast
Correct Answer: C. Increase anode heat capacity
7. An imaginary photon emitted from the center of the focal spot and perpendicular to the long
axis of the X-ray tube is known as the:
A. Effective focal spot
B. Primary beam
C. Central ray
D. Anode ray
Correct Answer: C. Central ray
8. The vacuum enclosure of the X-ray tube is made of:
,A. Lead
B. Tungsten
C. Aluminum
D. Glass
Correct Answer: D. Glass
9. Which of the following materials is most readily penetrated by X-rays?
A. Bone
B. Muscle
C. Fat
D. Air
Correct Answer: D. Air
10. Which organization is responsible for education standards, ethics, and credentialing
examinations in radiologic sciences?
A. ASRT
B. ACR
C. ARRT
D. JRCERT
Correct Answer: C. ARRT
11. The relationship between X-ray photon energy and frequency is:
A. Inverse
B. Exponential
C. Random
D. Direct
Correct Answer: D. Direct
12. Which forearm bone is located laterally?
, A. Ulna
B. Radius
C. Humerus
D. Scaphoid
Correct Answer: B. Radius
13. The electron cloud that forms around a heated cathode filament is called:
A. Thermionic emission
B. Space charge
C. Electron binding energy
D. Bremsstrahlung
Correct Answer: B. Space charge
14. Grids or buckys are generally required for body parts measuring greater than:
A. 8 cm
B. 10–12 cm
C. 15 cm
D. 20 cm
Correct Answer: B. 10–12 cm
15. Who invented the fluoroscope and investigated hundreds of fluorescent materials?
A. Wilhelm Roentgen
B. Michael Faraday
C. Thomas Edison
D. William Coolidge
Correct Answer: C. Thomas Edison
16. Another term for remnant radiation is:
A. Primary radiation
B. Scatter radiation
