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 7-year-old child is exposed to 15 mGy of alpha radiation with a quality factor
of 5. What is the resulting dose equivalent?
A. 3 mSv
B. 15 mSv
C. 30 mSv
D. 75 mSv
Correct Answer: D. 75 mSv
2. What is the cumulative lifetime dose limit for a 50-year-old occupational
radiation worker?
A. 250 mSv
B. 400 mSv
C. 500 mSv
D. 1,000 mSv
Correct Answer: C. 500 mSv
3. Which radiation detector is best suited for measuring radiation exposure in air?
A. Thermoluminescent dosimeter (TLD)
B. Geiger-Mueller counter
,C. Ionization chamber
D. Film badge
Correct Answer: C. Ionization chamber
4. Filtration within a dosimetry device is primarily used to:
A. Increase detector sensitivity
B. Reduce background radiation
C. Determine the type and energy of radiation
D. Improve spatial resolution
Correct Answer: C. Determine the type and energy of radiation
5. X-ray tube output is most accurately measured in which unit?
A. Gray
B. Sievert
C. Coulomb per kilogram
D. Roentgen
Correct Answer: D. Roentgen
6. Which of the following is a gas-filled radiation detector?
A. Scintillation detector
B. Ionization chamber
C. Geiger-Mueller counter
D. Solid-state detector
Correct Answer: C. Geiger-Mueller counter
,7. The gonadal dose that would produce the same genetic effect if delivered to
every individual in a population is called the:
A. Effective dose
B. Equivalent dose
C. Collective dose
D. Genetically significant dose (GSD)
Correct Answer: D. Genetically significant dose (GSD)
8. What is the annual dose equivalent limit (DEL) for the general public?
A. 0.1 mSv
B. 0.5 mSv
C. 1 mSv
D. 5 mSv
Correct Answer: C. 1 mSv
9. The active detection component of a gas-filled ionization detector is the:
A. Cathode shell
B. Gas medium
C. Anode pin or plate
D. Window filter
Correct Answer: C. Anode pin or plate
10. Radiation detection devices can operate in which modes?
A. Pulse and continuous
B. Rate, detection-only, and integrate
C. Digital and analog
D. Static and dynamic
, Correct Answer: B. Rate, detection-only, and integrate
11. Rapid reproduction of somatic cells occurs through:
A. Meiosis
B. Binary fission
C. Mitosis
D. Differentiation
Correct Answer: C. Mitosis
12. Which of the following cells is considered the most radiosensitive?
A. Muscle cells
B. Neurons
C. Epithelial cells
D. Lymphocytes
Correct Answer: D. Lymphocytes
13. Which cell organelle is responsible for protein synthesis?
A. Golgi apparatus
B. Mitochondria
C. Ribosomes
D. Lysosomes
Correct Answer: C. Ribosomes
14. Transfer RNA (tRNA) functions to:
A. Transcribe DNA
B. Attach to specific amino acids
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 7-year-old child is exposed to 15 mGy of alpha radiation with a quality factor
of 5. What is the resulting dose equivalent?
A. 3 mSv
B. 15 mSv
C. 30 mSv
D. 75 mSv
Correct Answer: D. 75 mSv
2. What is the cumulative lifetime dose limit for a 50-year-old occupational
radiation worker?
A. 250 mSv
B. 400 mSv
C. 500 mSv
D. 1,000 mSv
Correct Answer: C. 500 mSv
3. Which radiation detector is best suited for measuring radiation exposure in air?
A. Thermoluminescent dosimeter (TLD)
B. Geiger-Mueller counter
,C. Ionization chamber
D. Film badge
Correct Answer: C. Ionization chamber
4. Filtration within a dosimetry device is primarily used to:
A. Increase detector sensitivity
B. Reduce background radiation
C. Determine the type and energy of radiation
D. Improve spatial resolution
Correct Answer: C. Determine the type and energy of radiation
5. X-ray tube output is most accurately measured in which unit?
A. Gray
B. Sievert
C. Coulomb per kilogram
D. Roentgen
Correct Answer: D. Roentgen
6. Which of the following is a gas-filled radiation detector?
A. Scintillation detector
B. Ionization chamber
C. Geiger-Mueller counter
D. Solid-state detector
Correct Answer: C. Geiger-Mueller counter
,7. The gonadal dose that would produce the same genetic effect if delivered to
every individual in a population is called the:
A. Effective dose
B. Equivalent dose
C. Collective dose
D. Genetically significant dose (GSD)
Correct Answer: D. Genetically significant dose (GSD)
8. What is the annual dose equivalent limit (DEL) for the general public?
A. 0.1 mSv
B. 0.5 mSv
C. 1 mSv
D. 5 mSv
Correct Answer: C. 1 mSv
9. The active detection component of a gas-filled ionization detector is the:
A. Cathode shell
B. Gas medium
C. Anode pin or plate
D. Window filter
Correct Answer: C. Anode pin or plate
10. Radiation detection devices can operate in which modes?
A. Pulse and continuous
B. Rate, detection-only, and integrate
C. Digital and analog
D. Static and dynamic
, Correct Answer: B. Rate, detection-only, and integrate
11. Rapid reproduction of somatic cells occurs through:
A. Meiosis
B. Binary fission
C. Mitosis
D. Differentiation
Correct Answer: C. Mitosis
12. Which of the following cells is considered the most radiosensitive?
A. Muscle cells
B. Neurons
C. Epithelial cells
D. Lymphocytes
Correct Answer: D. Lymphocytes
13. Which cell organelle is responsible for protein synthesis?
A. Golgi apparatus
B. Mitochondria
C. Ribosomes
D. Lysosomes
Correct Answer: C. Ribosomes
14. Transfer RNA (tRNA) functions to:
A. Transcribe DNA
B. Attach to specific amino acids
