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OKLAHOMA DENTAL RADIATION
PROTECTION AND SAFETY
EXAM 2026 QUESTIONS AND
ANSWERS | A+ GRADED | WITH
EXPERT SOLUTIONS
Energy - correct answer-Radiation that travels through space as a
wave or a stream of particles.
X-ray - correct answer-An ionizing form of radiation that travels in
a wave.
Radiograph - correct answer-A picture produced when x-rays
pass through an object and then interact with a receptor which is
sensitive to radiation.
Radiolucent Areas - correct answer-Show where x-rays passed
through tissue and reached the receptor. Dark gray and black
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Radiopaque Areas - correct answer-Show that x-rays were
blocked and unable to reach the receptor. They are white or light
gray
Density - correct answer-In a radiograph, this refers to the
darkness
Contrast - correct answer-In a radiograph, this refers to the
shading
Wilhelm Conrad Roentgen - correct answer-Who discovered x-
rays in 1895?
Dr. William Rollins - correct answer-He gave warnings after a
burn to the hand and created the first collimator.
Dr. C. Edmond Kells - correct answer-He developed cancer of the
hands and committed suicide because of radiation related pain.
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Atoms - correct answer-Is the smallest unit of matter
Matter - correct answer-Anything that occupies space is what?
Nucleus - correct answer-What else do atoms have besides three
particles?
Proton, neutron, and electron - correct answer-What are the 3
particles of an atom called?
Proton - correct answer-Which particle is positive?
Neutron - correct answer-Which particle is neutral?
Electron - correct answer-Which particle is negative and orbits the
nucleus?
OKLAHOMA DENTAL RADIATION
PROTECTION AND SAFETY
EXAM 2026 QUESTIONS AND
ANSWERS | A+ GRADED | WITH
EXPERT SOLUTIONS
Energy - correct answer-Radiation that travels through space as a
wave or a stream of particles.
X-ray - correct answer-An ionizing form of radiation that travels in
a wave.
Radiograph - correct answer-A picture produced when x-rays
pass through an object and then interact with a receptor which is
sensitive to radiation.
Radiolucent Areas - correct answer-Show where x-rays passed
through tissue and reached the receptor. Dark gray and black
, Page | 2
Radiopaque Areas - correct answer-Show that x-rays were
blocked and unable to reach the receptor. They are white or light
gray
Density - correct answer-In a radiograph, this refers to the
darkness
Contrast - correct answer-In a radiograph, this refers to the
shading
Wilhelm Conrad Roentgen - correct answer-Who discovered x-
rays in 1895?
Dr. William Rollins - correct answer-He gave warnings after a
burn to the hand and created the first collimator.
Dr. C. Edmond Kells - correct answer-He developed cancer of the
hands and committed suicide because of radiation related pain.
, Page | 3
Atoms - correct answer-Is the smallest unit of matter
Matter - correct answer-Anything that occupies space is what?
Nucleus - correct answer-What else do atoms have besides three
particles?
Proton, neutron, and electron - correct answer-What are the 3
particles of an atom called?
Proton - correct answer-Which particle is positive?
Neutron - correct answer-Which particle is neutral?
Electron - correct answer-Which particle is negative and orbits the
nucleus?
