nc dental u rad exam 2026 Questions and
Answers
Electromagnetic radiation is made up of _______ that travel through space at the
speed of _____ in a straight line with a wavelike motion. - Answer -photons, light
What are the components of a dental x-ray machine? - Answer -tubehead,
extension arm, and control panel
What part of the x ray machine is known as the heart? - Answer -the tubehead
Primary Radiation - Answer -is the x-rays that come from the target of the x-ray
tube
Secondary radiation - Answer -is the x-radiation that is created when the primary
beam interacts with matter
Scatter radiation - Answer -is a form of secondary radiation
Scatter radiation results when an x-ray beam has been _______ by from its path by
interaction with matter. - Answer -deflected
_________ structures appear dark or black on the radiograph. - Answer -
Radiolucent
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Answers
Electromagnetic radiation is made up of _______ that travel through space at the
speed of _____ in a straight line with a wavelike motion. - Answer -photons, light
What are the components of a dental x-ray machine? - Answer -tubehead,
extension arm, and control panel
What part of the x ray machine is known as the heart? - Answer -the tubehead
Primary Radiation - Answer -is the x-rays that come from the target of the x-ray
tube
Secondary radiation - Answer -is the x-radiation that is created when the primary
beam interacts with matter
Scatter radiation - Answer -is a form of secondary radiation
Scatter radiation results when an x-ray beam has been _______ by from its path by
interaction with matter. - Answer -deflected
_________ structures appear dark or black on the radiograph. - Answer -
Radiolucent
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
