RADT 400 – Exam 1 Review 2026 | Questions & Verified
Answers | Orientation to Radiologic Technology
1. In a radiologic procedure, if an atom's K shell is fully occupied, how
might this affect the atom's interaction with x-rays during imaging?
The atom will have a higher energy level, making it more reactive.
The atom will become unstable and release radiation.
The atom will emit more x-rays because of the filled K shell.
The atom may be less likely to absorb x-rays due to the filled K
shell.
2. Why is radiation safety crucial in the context of medical imaging?
Radiation safety is not a concern in modern imaging techniques.
Radiation safety is only important for patients with pre-existing
conditions.
Radiation safety ensures that images are of high quality.
Radiation safety is crucial to prevent harmful changes in human
tissue caused by exposure.
3. Describe the significance of didactic learning in the education of
radiography students.
Didactic learning is less important than clinical training in
radiography education.
Didactic learning only covers the technical aspects of x-ray
production.
Didactic learning focuses solely on practical skills without
theoretical background.
Didactic learning provides foundational knowledge essential
for understanding radiologic sciences.
,4. What produces a magnetic field?
A moving electric charge.
Moving neutrons.
Iron atoms.
Neutrinos.
5. What term describes the intentional use of tube angles in radiographic
procedures?
Patient stabilization
Tube angulation
Image receptor alignment
Radiographic positioning
6. Which factor is considered an exception when discussing total image
unsharpness in radiographic imaging?
image receptor speed
focal spot size
size and shape of the exposure field (collimation)
patient motion
7. As students gain competency in radiation therapy procedures, three
phases in the clinical setting are planned by clinical faculty. These three
phases in the correct learning sequence are:
Classroom, laboratory, and clinical
Observation, assistance, and performance
Affective, psychomotor, and cognitive
,8. Physicians who practice in a hospital, though not necessarily employees
of the hospital
medical staff
medical records
information management
administration
nursing
9. In a scenario where a radiography student is faced with a challenging
case, how should they utilize their clinical practice knowledge?
By focusing only on the technical aspects of x-ray production.
By avoiding the use of any theoretical knowledge in favor of
intuition.
By relying solely on their instructors for guidance.
By applying relevant facts and information to assess and
address the imaging needs of the patient.
10. What is the primary requirement for x-radiation production in an x-ray
tube?
A vacuum must be maintained in the tube.
Electrons must be emitted from a cathode.
X-rays must be filtered before exposure.
High voltage must be applied to accelerate electrons.
11. Describe the role of the cathode in the x-ray tube.
The cathode converts x-rays into visible light.
, The cathode produces electrons that are necessary for x-ray
production.
The cathode absorbs x-rays to prevent exposure.
The cathode regulates the temperature of the x-ray tube.
12. If a radiographer needs to achieve a higher image density for a specific
examination, which adjustment should they make?
Decrease the kilovoltage (kV)
Use a faster film speed
Shorten the exposure time
Increase the milliamperage (mA)
13. What is the primary factor that influences the total quantity of x-ray
photons generated during an x-ray exposure?
kVp (kilovolt peak)
mAs (milliampere-seconds)
Exposure time
Film speed
14. The --- is the device that responds to the ionizing radiation to create
the radiographic image after it exits the patient.
central ray
image receptor
radiograph
15. Describe how electric current generates a magnetic field and its
relevance in radiologic imaging.
Answers | Orientation to Radiologic Technology
1. In a radiologic procedure, if an atom's K shell is fully occupied, how
might this affect the atom's interaction with x-rays during imaging?
The atom will have a higher energy level, making it more reactive.
The atom will become unstable and release radiation.
The atom will emit more x-rays because of the filled K shell.
The atom may be less likely to absorb x-rays due to the filled K
shell.
2. Why is radiation safety crucial in the context of medical imaging?
Radiation safety is not a concern in modern imaging techniques.
Radiation safety is only important for patients with pre-existing
conditions.
Radiation safety ensures that images are of high quality.
Radiation safety is crucial to prevent harmful changes in human
tissue caused by exposure.
3. Describe the significance of didactic learning in the education of
radiography students.
Didactic learning is less important than clinical training in
radiography education.
Didactic learning only covers the technical aspects of x-ray
production.
Didactic learning focuses solely on practical skills without
theoretical background.
Didactic learning provides foundational knowledge essential
for understanding radiologic sciences.
,4. What produces a magnetic field?
A moving electric charge.
Moving neutrons.
Iron atoms.
Neutrinos.
5. What term describes the intentional use of tube angles in radiographic
procedures?
Patient stabilization
Tube angulation
Image receptor alignment
Radiographic positioning
6. Which factor is considered an exception when discussing total image
unsharpness in radiographic imaging?
image receptor speed
focal spot size
size and shape of the exposure field (collimation)
patient motion
7. As students gain competency in radiation therapy procedures, three
phases in the clinical setting are planned by clinical faculty. These three
phases in the correct learning sequence are:
Classroom, laboratory, and clinical
Observation, assistance, and performance
Affective, psychomotor, and cognitive
,8. Physicians who practice in a hospital, though not necessarily employees
of the hospital
medical staff
medical records
information management
administration
nursing
9. In a scenario where a radiography student is faced with a challenging
case, how should they utilize their clinical practice knowledge?
By focusing only on the technical aspects of x-ray production.
By avoiding the use of any theoretical knowledge in favor of
intuition.
By relying solely on their instructors for guidance.
By applying relevant facts and information to assess and
address the imaging needs of the patient.
10. What is the primary requirement for x-radiation production in an x-ray
tube?
A vacuum must be maintained in the tube.
Electrons must be emitted from a cathode.
X-rays must be filtered before exposure.
High voltage must be applied to accelerate electrons.
11. Describe the role of the cathode in the x-ray tube.
The cathode converts x-rays into visible light.
, The cathode produces electrons that are necessary for x-ray
production.
The cathode absorbs x-rays to prevent exposure.
The cathode regulates the temperature of the x-ray tube.
12. If a radiographer needs to achieve a higher image density for a specific
examination, which adjustment should they make?
Decrease the kilovoltage (kV)
Use a faster film speed
Shorten the exposure time
Increase the milliamperage (mA)
13. What is the primary factor that influences the total quantity of x-ray
photons generated during an x-ray exposure?
kVp (kilovolt peak)
mAs (milliampere-seconds)
Exposure time
Film speed
14. The --- is the device that responds to the ionizing radiation to create
the radiographic image after it exits the patient.
central ray
image receptor
radiograph
15. Describe how electric current generates a magnetic field and its
relevance in radiologic imaging.
