OHIO GXMO STUDY GUIDE REVIEW
ACTUAL EXAMINATION TEST 2026
COMPLETE QUESTIONS CORRECT
ANSWERS GRADED A+
⩥ When were x-rays discovered? Answer: November 8, 1895 in
Germany
⩥ What are the 3 Cardinal Principals of radiation protection? Answer:
Maximize distance, maximize shielding, minimize time
⩥ What is Erythema? Answer: Reddening of the skin
⩥ What is Anemia? Answer: Decrease of oxygen in blood, low blood
count
⩥ What is Leukopenia? Answer: Low WBC count
⩥ What is epilation? Answer: Loss of hair
⩥ What does ALARA stand for? Answer: As Low As Reasonably
Achievable
,⩥ What is collimation? Answer: Limits the size/area of the x-ray beam
⩥ What is a proton? Answer: Positively charged, in nucleus of atom
⩥ What is a neutron? Answer: No electrical charge, in nucleus of atom
⩥ What is a electron? Answer: Negatively charged, in orbital shell
around nucleus of an atom
⩥ What is an ion? Answer: A charged particle
⩥ What is ionization? Answer: Process of an electron leaving its orbit
around a neutral atom
⩥ What is an ion pair? Answer: An electron and a positive charged atom
⩥ What does isotropic mean? Answer: Equal in all directions
⩥ What is energy? Answer: The ability to do work
⩥ What is mass? Answer: The quantity of matter
, ⩥ What is matter? Answer: Anything that occupies space and has mass
⩥ What travels at 186,000 miles/second? Answer: All electromagnetic
radiation
⩥ Does electromagnetic radiation have mass? Answer: No
⩥ What has higher energy than visible light? Answer: X-rays
⩥ What happens when x-rays are absorbed by body tissue? Answer:
Causes ionization of atoms and molecules
⩥ Ionization can result in what type of damage? Answer: Biological
Damage
⩥ What is radioplaque? Answer: DOES NOT go through
⩥ What is radiolucent? Answer: Sees through
⩥ A special mechanism that stops tube movement at a specific location
is? Answer: Detent
ACTUAL EXAMINATION TEST 2026
COMPLETE QUESTIONS CORRECT
ANSWERS GRADED A+
⩥ When were x-rays discovered? Answer: November 8, 1895 in
Germany
⩥ What are the 3 Cardinal Principals of radiation protection? Answer:
Maximize distance, maximize shielding, minimize time
⩥ What is Erythema? Answer: Reddening of the skin
⩥ What is Anemia? Answer: Decrease of oxygen in blood, low blood
count
⩥ What is Leukopenia? Answer: Low WBC count
⩥ What is epilation? Answer: Loss of hair
⩥ What does ALARA stand for? Answer: As Low As Reasonably
Achievable
,⩥ What is collimation? Answer: Limits the size/area of the x-ray beam
⩥ What is a proton? Answer: Positively charged, in nucleus of atom
⩥ What is a neutron? Answer: No electrical charge, in nucleus of atom
⩥ What is a electron? Answer: Negatively charged, in orbital shell
around nucleus of an atom
⩥ What is an ion? Answer: A charged particle
⩥ What is ionization? Answer: Process of an electron leaving its orbit
around a neutral atom
⩥ What is an ion pair? Answer: An electron and a positive charged atom
⩥ What does isotropic mean? Answer: Equal in all directions
⩥ What is energy? Answer: The ability to do work
⩥ What is mass? Answer: The quantity of matter
, ⩥ What is matter? Answer: Anything that occupies space and has mass
⩥ What travels at 186,000 miles/second? Answer: All electromagnetic
radiation
⩥ Does electromagnetic radiation have mass? Answer: No
⩥ What has higher energy than visible light? Answer: X-rays
⩥ What happens when x-rays are absorbed by body tissue? Answer:
Causes ionization of atoms and molecules
⩥ Ionization can result in what type of damage? Answer: Biological
Damage
⩥ What is radioplaque? Answer: DOES NOT go through
⩥ What is radiolucent? Answer: Sees through
⩥ A special mechanism that stops tube movement at a specific location
is? Answer: Detent
