OHIO GXMO STUDY GUIDE REVIEW
EXAM QUESTIONS AND ANSWERS 100%
PASS 2026 UPDATE.
Who discovered x-rays? - ANS Wilhelm Conrad Roentgen
When were x-rays discovered? - ANS November 8, 1895 in Germany
What are the 3 Cardinal Principals of radiation protection? - ANS Maximize distance,
maximize shielding, minimize time
What is Erythema? - ANS Reddening of the skin
What is Anemia? - ANS Decrease of oxygen in blood, low blood count
What is Leukopenia? - ANS Low WBC count
What is epilation? - ANS Loss of hair
What does ALARA stand for? - ANS As Low As Reasonably Achievable
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
,What is collimation? - ANS Limits the size/area of the x-ray beam
What is a proton? - ANS Positively charged, in nucleus of atom
What is a neutron? - ANS No electrical charge, in nucleus of atom
What is a electron? - ANS Negatively charged, in orbital shell around nucleus of an atom
What is an ion? - ANS A charged particle
What is ionization? - ANS Process of an electron leaving its orbit around a neutral atom
What is an ion pair? - ANS An electron and a positive charged atom
What does isotropic mean? - ANS Equal in all directions
What is energy? - ANS The ability to do work
What is mass? - ANS The quantity of matter
What is matter? - ANS Anything that occupies space and has mass
What travels at 186,000 miles/second? - ANS All electromagnetic radiation
Does electromagnetic radiation have mass? - ANS No
What has higher energy than visible light? - ANS X-rays
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, What happens when x-rays are absorbed by body tissue? - ANS Causes ionization of atoms
and molecules
Ionization can result in what type of damage? - ANS Biological Damage
What is radioplaque? - ANS DOES NOT go through
What is radiolucent? - ANS Sees through
A special mechanism that stops tube movement at a specific location is? - ANS Detent
What device receives the energy of the x-ray beam and forms the image of the body part? -
ANS Image Receptor
What type of cassette containing film receives x-ray beam? - ANS Film based
What is a latent image? - ANS A hidden image
A cassette containing film receives the x-ray beam. The film now contains a latent image and will
become visible after being processed in a? - ANS Dark room
What type of cassette containing a phosphor plate receives the x-ray beam? - ANS Computed
Radiography
In CR, the phosphor plate will be scanned by a? - ANS Laser
An electronic plate receives the x-ray beam and produces and electronic signal that is sent
directly to a computer for processing and digital image formation? - ANS Direct/Digital
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
EXAM QUESTIONS AND ANSWERS 100%
PASS 2026 UPDATE.
Who discovered x-rays? - ANS Wilhelm Conrad Roentgen
When were x-rays discovered? - ANS November 8, 1895 in Germany
What are the 3 Cardinal Principals of radiation protection? - ANS Maximize distance,
maximize shielding, minimize time
What is Erythema? - ANS Reddening of the skin
What is Anemia? - ANS Decrease of oxygen in blood, low blood count
What is Leukopenia? - ANS Low WBC count
What is epilation? - ANS Loss of hair
What does ALARA stand for? - ANS As Low As Reasonably Achievable
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
,What is collimation? - ANS Limits the size/area of the x-ray beam
What is a proton? - ANS Positively charged, in nucleus of atom
What is a neutron? - ANS No electrical charge, in nucleus of atom
What is a electron? - ANS Negatively charged, in orbital shell around nucleus of an atom
What is an ion? - ANS A charged particle
What is ionization? - ANS Process of an electron leaving its orbit around a neutral atom
What is an ion pair? - ANS An electron and a positive charged atom
What does isotropic mean? - ANS Equal in all directions
What is energy? - ANS The ability to do work
What is mass? - ANS The quantity of matter
What is matter? - ANS Anything that occupies space and has mass
What travels at 186,000 miles/second? - ANS All electromagnetic radiation
Does electromagnetic radiation have mass? - ANS No
What has higher energy than visible light? - ANS X-rays
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, What happens when x-rays are absorbed by body tissue? - ANS Causes ionization of atoms
and molecules
Ionization can result in what type of damage? - ANS Biological Damage
What is radioplaque? - ANS DOES NOT go through
What is radiolucent? - ANS Sees through
A special mechanism that stops tube movement at a specific location is? - ANS Detent
What device receives the energy of the x-ray beam and forms the image of the body part? -
ANS Image Receptor
What type of cassette containing film receives x-ray beam? - ANS Film based
What is a latent image? - ANS A hidden image
A cassette containing film receives the x-ray beam. The film now contains a latent image and will
become visible after being processed in a? - ANS Dark room
What type of cassette containing a phosphor plate receives the x-ray beam? - ANS Computed
Radiography
In CR, the phosphor plate will be scanned by a? - ANS Laser
An electronic plate receives the x-ray beam and produces and electronic signal that is sent
directly to a computer for processing and digital image formation? - ANS Direct/Digital
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
