LRA 211 Final Exam Review |Latest
Edition| (2026-2027)
1. The energy of the brems photon depends on - ANSWER the original energy
of the filament electron
the strength of the attraction between the electron and the nucleus
the energy of the filament electron as it leaves the tungsten atom.
2. The majority of the x-ray photons produced are - ANSWER brems photons.
3. Which of the following is the primary factor controlling quantity? -
ANSWER mAs
4. As the distance increases, the beam quantity reaching a specific area -
ANSWER decreases.
5. Classical interactions are also known as - ANSWER Thomson and coherent
scattering.
6. Coherent scattering involves - ANSWER an x-ray photon with low energy.
7. With Compton scattering, the incident photon - ANSWER loses up to one
third of its energy.
,8. Secondary photons produced during a Compton interaction - ANSWER
contribute to patient dose.
9. When it does interact with the image receptor, the Compton scatter photon
contributes no useful information because - ANSWER it has changed
direction.
10.The fog seen on the radiographic image is the result of - ANSWER
Compton interactions.
11.The primary source of radiation exposure to the radiographer who is in the
room during an exposure is - ANSWER from scatter from the patient.
12.To minimize occupational exposure, the technologist should - ANSWER
wear protective apparel (lead aprons, gloves, etc.) when in the room during
imaging.
13.Photoelectric interactions - ANSWER contribute significantly to patient
dose.
14.Radiation interacting with air is more likely to be _____________, resulting
in that area of the image being darker. - ANSWER Transmitted
15.The device that receives the radiation after it exits the patient is the -
ANSWER Image receptor.
16.Which of the following is an example of an image receptor? - ANSWER
Film-screen and digital
, 17.In producing a radiographic image, which of the following occurs first? -
ANSWER Quality and quantity of x-ray beam exit the x-ray tube
18.In producing a radiographic image, which of the following occurs last? -
ANSWER Radiation interacts with image receptor
19.The latent image that is formed on the image receptor is the - ANSWER
invisible image.
20.Complete absorption of the diagnostic range x-ray photon is the interaction
known as - ANSWER photoelectric interaction.
21.The photoelectric interaction involves removal of - ANSWER an inner-shell
electron.
22.The ability to remove electrons from an atom is - ANSWER ionization.
23.The probability of a Compton interaction is _______________ in bone than
soft tissue. - ANSWER the same
24.Transmission refers to - ANSWER x-rays leaving the patient that did not
interact with atoms.
25.The overall quality of the radiographic image is determined by - ANSWER
sharpness
visibility of anatomic structures
accuracy of structural lines.
Edition| (2026-2027)
1. The energy of the brems photon depends on - ANSWER the original energy
of the filament electron
the strength of the attraction between the electron and the nucleus
the energy of the filament electron as it leaves the tungsten atom.
2. The majority of the x-ray photons produced are - ANSWER brems photons.
3. Which of the following is the primary factor controlling quantity? -
ANSWER mAs
4. As the distance increases, the beam quantity reaching a specific area -
ANSWER decreases.
5. Classical interactions are also known as - ANSWER Thomson and coherent
scattering.
6. Coherent scattering involves - ANSWER an x-ray photon with low energy.
7. With Compton scattering, the incident photon - ANSWER loses up to one
third of its energy.
,8. Secondary photons produced during a Compton interaction - ANSWER
contribute to patient dose.
9. When it does interact with the image receptor, the Compton scatter photon
contributes no useful information because - ANSWER it has changed
direction.
10.The fog seen on the radiographic image is the result of - ANSWER
Compton interactions.
11.The primary source of radiation exposure to the radiographer who is in the
room during an exposure is - ANSWER from scatter from the patient.
12.To minimize occupational exposure, the technologist should - ANSWER
wear protective apparel (lead aprons, gloves, etc.) when in the room during
imaging.
13.Photoelectric interactions - ANSWER contribute significantly to patient
dose.
14.Radiation interacting with air is more likely to be _____________, resulting
in that area of the image being darker. - ANSWER Transmitted
15.The device that receives the radiation after it exits the patient is the -
ANSWER Image receptor.
16.Which of the following is an example of an image receptor? - ANSWER
Film-screen and digital
, 17.In producing a radiographic image, which of the following occurs first? -
ANSWER Quality and quantity of x-ray beam exit the x-ray tube
18.In producing a radiographic image, which of the following occurs last? -
ANSWER Radiation interacts with image receptor
19.The latent image that is formed on the image receptor is the - ANSWER
invisible image.
20.Complete absorption of the diagnostic range x-ray photon is the interaction
known as - ANSWER photoelectric interaction.
21.The photoelectric interaction involves removal of - ANSWER an inner-shell
electron.
22.The ability to remove electrons from an atom is - ANSWER ionization.
23.The probability of a Compton interaction is _______________ in bone than
soft tissue. - ANSWER the same
24.Transmission refers to - ANSWER x-rays leaving the patient that did not
interact with atoms.
25.The overall quality of the radiographic image is determined by - ANSWER
sharpness
visibility of anatomic structures
accuracy of structural lines.
