RADIATION PROTECTION IN MEDICAL
RADIOGRAPHY EXAM SCRIPT 2026 FULL
SOLUTIONS AND CORRECT ANSWERS
ALREADY PASSED
◉ The optically stimulated luminescence (OSL) dosimeter is "read
out" by using a (an)
a. densitometer.
b. ionization chamber.
c. thermoluminescent analyzer.
d. laser light at selected frequencies. Answer: D
◉ The much smaller structures that make up nucleic acids are called
a. carbohydrates.
b. fatty acids.
c. nucleotides.
d. polysaccharides.. Answer: C
◉ Which of the following serves as a prototype for messenger RNA
(mRNA)?
a. Deoxyribonucleic acid (DNA)
,b. Nitric acid (HNO3)
c. Potassium (K) and sodium (Na)
d. Transfer RNA (tRNA). Answer: A
◉ The cell components that contain the centrioles are the
a. centrosomes.
b. Golgi apparatus and mitochondria.
c. lysosomes.
d. ribosomes. Answer: A
◉ A nucleotide is formed from a nitrogen-containing organic base, a
________________ molecule, and a phosphate molecule.
a. three-carbon sugar
b. five-carbon sugar
c. seven-carbon sugar
d. nine-carbon sugar. Answer: B
◉ Which of the following is/are considered to be acellular tissue?
a. Bone
b. Fat
c. Muscle
d. Hair and nails. Answer: D
,◉ A biologic reaction is produced by 4 Gyt of a test radiation. It takes
16 Gyt of 250-kVp x-rays to produce the same biologic
reaction. What is the relative biologic effectiveness (RBE) of the test
radiation?
a. 2
b. 4
c. 8
d. 12. Answer: B
◉ Which of the following is/are considered low-LET radiation(s)?
1. X-rays
2. Alpha particles
3. Gamma rays
a. 1 only
b. 2 only
c. 1 and 3 only
d. 2 and 3 only. Answer: C
◉ The radiation dose required to produce mitotic death is
a. less than the dose needed to produce apoptosis in slowly dividing
cells or
, nondividing cells.
b. more than the dose needed to produce apoptosis in slowly
dividing cells or
nondividing cells.
c. the same as the dose needed to produce apoptosis in slowly
dividing cells or
nondividing cells.
d. nonexistent because mitotic death cannot be produced in slowly
dividing cells or
nondividing cells as a result of exposure to ionizing radiation..
Answer: A
◉ Because the master molecule is unique in any given cell, no
similar molecules in the cell are available to replace it; if a critical
location on the master molecule is a target receiving multiple hits
from ionizing radiation, the master molecule may be inactivated.
If this occurs, what is the consequence for the affected cell?
a. Loss of all intracellular fluid
b. Increased pressure on the cell membrane leading to immediate
rupture
c. Disruption of cell chemistry only
d. Normal cell function will cease, and the cell will die.. Answer: D
RADIOGRAPHY EXAM SCRIPT 2026 FULL
SOLUTIONS AND CORRECT ANSWERS
ALREADY PASSED
◉ The optically stimulated luminescence (OSL) dosimeter is "read
out" by using a (an)
a. densitometer.
b. ionization chamber.
c. thermoluminescent analyzer.
d. laser light at selected frequencies. Answer: D
◉ The much smaller structures that make up nucleic acids are called
a. carbohydrates.
b. fatty acids.
c. nucleotides.
d. polysaccharides.. Answer: C
◉ Which of the following serves as a prototype for messenger RNA
(mRNA)?
a. Deoxyribonucleic acid (DNA)
,b. Nitric acid (HNO3)
c. Potassium (K) and sodium (Na)
d. Transfer RNA (tRNA). Answer: A
◉ The cell components that contain the centrioles are the
a. centrosomes.
b. Golgi apparatus and mitochondria.
c. lysosomes.
d. ribosomes. Answer: A
◉ A nucleotide is formed from a nitrogen-containing organic base, a
________________ molecule, and a phosphate molecule.
a. three-carbon sugar
b. five-carbon sugar
c. seven-carbon sugar
d. nine-carbon sugar. Answer: B
◉ Which of the following is/are considered to be acellular tissue?
a. Bone
b. Fat
c. Muscle
d. Hair and nails. Answer: D
,◉ A biologic reaction is produced by 4 Gyt of a test radiation. It takes
16 Gyt of 250-kVp x-rays to produce the same biologic
reaction. What is the relative biologic effectiveness (RBE) of the test
radiation?
a. 2
b. 4
c. 8
d. 12. Answer: B
◉ Which of the following is/are considered low-LET radiation(s)?
1. X-rays
2. Alpha particles
3. Gamma rays
a. 1 only
b. 2 only
c. 1 and 3 only
d. 2 and 3 only. Answer: C
◉ The radiation dose required to produce mitotic death is
a. less than the dose needed to produce apoptosis in slowly dividing
cells or
, nondividing cells.
b. more than the dose needed to produce apoptosis in slowly
dividing cells or
nondividing cells.
c. the same as the dose needed to produce apoptosis in slowly
dividing cells or
nondividing cells.
d. nonexistent because mitotic death cannot be produced in slowly
dividing cells or
nondividing cells as a result of exposure to ionizing radiation..
Answer: A
◉ Because the master molecule is unique in any given cell, no
similar molecules in the cell are available to replace it; if a critical
location on the master molecule is a target receiving multiple hits
from ionizing radiation, the master molecule may be inactivated.
If this occurs, what is the consequence for the affected cell?
a. Loss of all intracellular fluid
b. Increased pressure on the cell membrane leading to immediate
rupture
c. Disruption of cell chemistry only
d. Normal cell function will cease, and the cell will die.. Answer: D
