Latest_ Test Bank for Bushong’s Radiologic Science for Technologists, 13th Edition _ Full Chapters 1-42 with Verified Answers & Rationales.pdf

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