OHIO GXMO COMPREHENSIVE QUESTIONS AND
ANSWERS SET A+
✔✔What happens when x-rays are absorbed by body tissue? - ✔✔Causes ionization of
atoms and molecules
✔✔Ionization can result in what type of damage? - ✔✔Biological Damage
✔✔What is radioplaque? - ✔✔DOES NOT go through
✔✔What is radiolucent? - ✔✔Sees through
✔✔A special mechanism that stops tube movement at a specific location is? -
✔✔Detent
✔✔What device receives the energy of the x-ray beam and forms the image of the body
part? - ✔✔Image Receptor
✔✔What type of cassette containing film receives x-ray beam? - ✔✔Film based
✔✔What is a latent image? - ✔✔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? - ✔✔Dark room
✔✔What type of cassette containing a phosphor plate receives the x-ray beam? -
✔✔Computed Radiography
✔✔In CR, the phosphor plate will be scanned by a? - ✔✔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? -
✔✔Direct/Digital
✔✔What prevents scatter radiation from reaching the IR? - ✔✔Grid
✔✔What includes a tray to hold the IR? - ✔✔Bucky
✔✔What does the collimator do? - ✔✔Limits the size of the radiation field
✔✔What does transverse mean? - ✔✔Movement of the x-ray tube across the patient
from left to right
✔✔What does longitudinal mean? - ✔✔Movement of the x-ray tube from the foot end
toward the head end of the patient
✔✔What does vertical mean? - ✔✔Movement of the x-ray tube from 30" to 40" inches
about the film
✔✔What does kVp control? - ✔✔The penetrating ability of the x-rays
✔✔What does mAs control? - ✔✔The quantity of x-rays produced
✔✔What is attenuation? - ✔✔Absorption of the x-ray beam within the patients body
✔✔What material absorbs a high percentage of radiation? - ✔✔Lead
✔✔What is the anode? - ✔✔Positive charged, contains the target and is heated to
produce thermionic emission of electrons
✔✔What is the cathode? - ✔✔Negative charged, contains the small/large filaments
within a focusing cup
✔✔99% of the energy of the electrons striking the target is converted into? - ✔✔Heat
✔✔What type of x-ray would the electron strike the target interacting with target atom
nucleus, slows down, losing kinetic energy that is converted into an x-ray? -
✔✔Bremmstrahlung x-ray
✔✔What type of x-ray would the electron strike the target while ejecting the inner shell
electron of target atom, an outer shell electron would then fill the vacancy with the
release of x-ray photon - ✔✔Characteristic x-ray
ANSWERS SET A+
✔✔What happens when x-rays are absorbed by body tissue? - ✔✔Causes ionization of
atoms and molecules
✔✔Ionization can result in what type of damage? - ✔✔Biological Damage
✔✔What is radioplaque? - ✔✔DOES NOT go through
✔✔What is radiolucent? - ✔✔Sees through
✔✔A special mechanism that stops tube movement at a specific location is? -
✔✔Detent
✔✔What device receives the energy of the x-ray beam and forms the image of the body
part? - ✔✔Image Receptor
✔✔What type of cassette containing film receives x-ray beam? - ✔✔Film based
✔✔What is a latent image? - ✔✔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? - ✔✔Dark room
✔✔What type of cassette containing a phosphor plate receives the x-ray beam? -
✔✔Computed Radiography
✔✔In CR, the phosphor plate will be scanned by a? - ✔✔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? -
✔✔Direct/Digital
✔✔What prevents scatter radiation from reaching the IR? - ✔✔Grid
✔✔What includes a tray to hold the IR? - ✔✔Bucky
✔✔What does the collimator do? - ✔✔Limits the size of the radiation field
✔✔What does transverse mean? - ✔✔Movement of the x-ray tube across the patient
from left to right
✔✔What does longitudinal mean? - ✔✔Movement of the x-ray tube from the foot end
toward the head end of the patient
✔✔What does vertical mean? - ✔✔Movement of the x-ray tube from 30" to 40" inches
about the film
✔✔What does kVp control? - ✔✔The penetrating ability of the x-rays
✔✔What does mAs control? - ✔✔The quantity of x-rays produced
✔✔What is attenuation? - ✔✔Absorption of the x-ray beam within the patients body
✔✔What material absorbs a high percentage of radiation? - ✔✔Lead
✔✔What is the anode? - ✔✔Positive charged, contains the target and is heated to
produce thermionic emission of electrons
✔✔What is the cathode? - ✔✔Negative charged, contains the small/large filaments
within a focusing cup
✔✔99% of the energy of the electrons striking the target is converted into? - ✔✔Heat
✔✔What type of x-ray would the electron strike the target interacting with target atom
nucleus, slows down, losing kinetic energy that is converted into an x-ray? -
✔✔Bremmstrahlung x-ray
✔✔What type of x-ray would the electron strike the target while ejecting the inner shell
electron of target atom, an outer shell electron would then fill the vacancy with the
release of x-ray photon - ✔✔Characteristic x-ray
