GXMO Study Questions with All
Correct Answers 2025 Update
The special mechanism that stops tube movement at a specific location is a _________.
- Answer-detent
A type of image receptor that uses a cassette containing film that receives the x-ray
beam. - Answer-digital radiography
A type of image receptor that uses an electronic plate, receives the x-ray beam and
produces an electronic signal that is sent directly to a computer for processing and
digital image formation. - Answer-digital radiography
Which of the following is the correct term for movement of the x-ray tube across the
patient from left to right? - Answer-transverse
Which of the following is the correct term for movement of the x-ray tube from 30" to 40"
inches above the image receptor? - Answer-vertical
Which of the following controls the quantity of x-rays produced? - Answer-mAs
What is the correct term for absorption of the x-ray beam within the patient's body? -
Answer-attenuation
Which of the following should the operator ensure before making an x-ray exposure?
A. Non-essential persons are out of the x-ray room
B. The patient is safe
C. No extra image receptors are in the x-ray room
D. The x-ray room door is closed - Answer-A,B,C,D
The current philosophy of radiation protection is to keep patient dose as low as possible
yet still produce quality radiographic images. The acronym for this is ALARA which
stands for: - Answer-as low as reasonably achievable
Which of the following describes the particle of an atom that is positively charged and
resides in the nucleus of an atom? - Answer-proton
Which of the following is the correct term for a charged particle? - Answer-ion
, Which of the following is the correct term for the process of an electron leaving its orbit
around a neutral atom? - Answer-ionization
Which of the following is the correct term for the ability to do work? - Answer-energy
Which of the following is the correct term for the quantity of matter? - Answer-mass
Which of the following is NOT true about electromagnetic radiation? - Answer-
Which of the following have a higher energy than visible light. - Answer-all of the above
Ionization can _____ - Answer-result in biologic damage, cause an electron to leave its
orbit, result in an ion pair
A radiographer receives an exposure of 80 rem standing 2 feet from the patient. What
will her exposure be at 4 feet?_________ at 8 feet?_____ - Answer-20 rem, 5 rem
increased tissue thickness means: - Answer-a material is more radiopaque
Which of the following is NOT part of the electromagnetic spectrum? - Answer-sound
waves
The term which is used to describe x-radiation as a small bundle of energy moving
though space is: - Answer-photon
The Inverse Square Law describes the relationship between x-ray beam intensity and
_____. - Answer-distance
Which of the following is positively charged? - Answer-anode
Which of the following contains the target? - Answer-anode
Which of the following is heated to produce thermionic emission of electrons? - Answer-
cathode
99% of the energy of the electrons striking the target is converted to _____. - Answer-
heat
Which of the following is the correct term for when the electron striking the target ejects
the inner shell electron of the target atom; an outer shell electron fills the vacancy with
the release of an x-ray photon? - Answer-characteristic x-ray
Which of the following propels electrons toward a specific area of the anode target? -
Answer-focusing cup
Which of the following is used to provide greater image detail? - Answer-small filament
Correct Answers 2025 Update
The special mechanism that stops tube movement at a specific location is a _________.
- Answer-detent
A type of image receptor that uses a cassette containing film that receives the x-ray
beam. - Answer-digital radiography
A type of image receptor that uses an electronic plate, receives the x-ray beam and
produces an electronic signal that is sent directly to a computer for processing and
digital image formation. - Answer-digital radiography
Which of the following is the correct term for movement of the x-ray tube across the
patient from left to right? - Answer-transverse
Which of the following is the correct term for movement of the x-ray tube from 30" to 40"
inches above the image receptor? - Answer-vertical
Which of the following controls the quantity of x-rays produced? - Answer-mAs
What is the correct term for absorption of the x-ray beam within the patient's body? -
Answer-attenuation
Which of the following should the operator ensure before making an x-ray exposure?
A. Non-essential persons are out of the x-ray room
B. The patient is safe
C. No extra image receptors are in the x-ray room
D. The x-ray room door is closed - Answer-A,B,C,D
The current philosophy of radiation protection is to keep patient dose as low as possible
yet still produce quality radiographic images. The acronym for this is ALARA which
stands for: - Answer-as low as reasonably achievable
Which of the following describes the particle of an atom that is positively charged and
resides in the nucleus of an atom? - Answer-proton
Which of the following is the correct term for a charged particle? - Answer-ion
, Which of the following is the correct term for the process of an electron leaving its orbit
around a neutral atom? - Answer-ionization
Which of the following is the correct term for the ability to do work? - Answer-energy
Which of the following is the correct term for the quantity of matter? - Answer-mass
Which of the following is NOT true about electromagnetic radiation? - Answer-
Which of the following have a higher energy than visible light. - Answer-all of the above
Ionization can _____ - Answer-result in biologic damage, cause an electron to leave its
orbit, result in an ion pair
A radiographer receives an exposure of 80 rem standing 2 feet from the patient. What
will her exposure be at 4 feet?_________ at 8 feet?_____ - Answer-20 rem, 5 rem
increased tissue thickness means: - Answer-a material is more radiopaque
Which of the following is NOT part of the electromagnetic spectrum? - Answer-sound
waves
The term which is used to describe x-radiation as a small bundle of energy moving
though space is: - Answer-photon
The Inverse Square Law describes the relationship between x-ray beam intensity and
_____. - Answer-distance
Which of the following is positively charged? - Answer-anode
Which of the following contains the target? - Answer-anode
Which of the following is heated to produce thermionic emission of electrons? - Answer-
cathode
99% of the energy of the electrons striking the target is converted to _____. - Answer-
heat
Which of the following is the correct term for when the electron striking the target ejects
the inner shell electron of the target atom; an outer shell electron fills the vacancy with
the release of an x-ray photon? - Answer-characteristic x-ray
Which of the following propels electrons toward a specific area of the anode target? -
Answer-focusing cup
Which of the following is used to provide greater image detail? - Answer-small filament
