Latest: Test Bank for Bushong’s
Radiologic Science for Technologists,
13th Edition | Full Chapters 1-42 with
Verified Answers & Rationales
📘 Radiologic Science – MCQs (1–50)
1. The unit of electrical current is
A. Volt
B. Ohm
C. Ampere
✅
D. Watt
Answer: C
2. Which particle carries a negative charge?
A. Proton
B. Neutron
C. Positron
✅
D. Electron
Answer: D
3. Electromagnetic radiation travels at approximately
A. 3 × 10⁶ m/s
B. 3 × 10⁷ m/s
C. 3 × 10⁸ m/s
✅
D. 3 × 10⁹ m/s
Answer: C
,4. Frequency is defined as
A. Distance between waves
B. Number of cycles per second
C. Energy of radiation
✅
D. Penetrating power
Answer: B
5. The SI unit of absorbed dose is
A. Rad
B. Rem
C. Roentgen
✅
D. Gray (Gy)
Answer: D
6. X-ray beam quality is primarily controlled by
A. mAs
B. SID
C. kVp
✅
D. Filtration
Answer: C
7. The primary function of filtration is to
A. Increase scatter
B. Improve contrast
C. Reduce patient skin dose
✅
D. Increase beam quantity
Answer: C
8. Which interaction completely absorbs the x-ray photon?
, A. Compton scatter
B. Coherent scatter
C. Photoelectric effect
✅
D. Pair production
Answer: C
9. The majority of diagnostic x-rays are produced by
A. Characteristic radiation
B. Bremsstrahlung radiation
C. Photoelectric interaction
✅
D. Compton interaction
Answer: B
10. What material is most commonly used for the x-ray target?
A. Copper
B. Lead
C. Tungsten
✅
D. Aluminum
Answer: C
11. Increasing kVp will
A. Decrease beam penetration
B. Decrease scatter
C. Increase beam penetration
✅
D. Reduce patient dose only
Answer: C
12. mAs primarily controls
A. Beam quality
B. Image contrast
C. Quantity of x-rays
✅
D. Beam energy
Answer: C
Radiologic Science for Technologists,
13th Edition | Full Chapters 1-42 with
Verified Answers & Rationales
📘 Radiologic Science – MCQs (1–50)
1. The unit of electrical current is
A. Volt
B. Ohm
C. Ampere
✅
D. Watt
Answer: C
2. Which particle carries a negative charge?
A. Proton
B. Neutron
C. Positron
✅
D. Electron
Answer: D
3. Electromagnetic radiation travels at approximately
A. 3 × 10⁶ m/s
B. 3 × 10⁷ m/s
C. 3 × 10⁸ m/s
✅
D. 3 × 10⁹ m/s
Answer: C
,4. Frequency is defined as
A. Distance between waves
B. Number of cycles per second
C. Energy of radiation
✅
D. Penetrating power
Answer: B
5. The SI unit of absorbed dose is
A. Rad
B. Rem
C. Roentgen
✅
D. Gray (Gy)
Answer: D
6. X-ray beam quality is primarily controlled by
A. mAs
B. SID
C. kVp
✅
D. Filtration
Answer: C
7. The primary function of filtration is to
A. Increase scatter
B. Improve contrast
C. Reduce patient skin dose
✅
D. Increase beam quantity
Answer: C
8. Which interaction completely absorbs the x-ray photon?
, A. Compton scatter
B. Coherent scatter
C. Photoelectric effect
✅
D. Pair production
Answer: C
9. The majority of diagnostic x-rays are produced by
A. Characteristic radiation
B. Bremsstrahlung radiation
C. Photoelectric interaction
✅
D. Compton interaction
Answer: B
10. What material is most commonly used for the x-ray target?
A. Copper
B. Lead
C. Tungsten
✅
D. Aluminum
Answer: C
11. Increasing kVp will
A. Decrease beam penetration
B. Decrease scatter
C. Increase beam penetration
✅
D. Reduce patient dose only
Answer: C
12. mAs primarily controls
A. Beam quality
B. Image contrast
C. Quantity of x-rays
✅
D. Beam energy
Answer: C
