Rad Summer Exam Questions and
Answers
medical term for dizziness - Answer-vertigo
destructive pathologies result in a ___________ in density - Answer-decrease
A technologist produces a lumbar spine film with a 16:1 grid, using 80 mAs. What mAs would be needed
if he used an 8:1 grid? - Answer-53.3
Calculate the mAS if the technologist sets factors of 200 mA and 35 milliseconds. - Answer-7 mAs
Where is the central ray directed for a lateral thoracic spine? - Answer-level of T7
Digital radiography (DR) is characterized by - Answer-The use of reusable receptors
Several methods are available to perform an axiolateral oblique of the mandible to demonstrate the
body, symphysis, or ramus. What is the central angulation for all of these projections? - Answer-25
degrees cephalad
The radiographer took a knee x-ray using 3 mAs and 60 kVp. The x-ray was too light and he needs to
double the density by increasing the kvp. What kVp should he use? - Answer-69
, All of the following are types of image forming x-rays EXCEPT: - Answer-coherent x-rays
What is the central ray angulation for the AP axial projection for the zygomatic arches? - Answer-30
degrees caudad
When the patient can not be placed in a true horizontal position for the L5-S1 lateral projection, the
central ray must be angled: - Answer-5 degrees for men, 8 for women, caudad
An exposure of 240 mR is recorded at a distance of 40 inches. If the same technical factors are used,
what will the exposure be if the distance is decreased to 30 inches? - Answer-427 mR
Raising the kVp increases _____________ interactions and decreases___________ interactions. -
Answer-Compton scatter, Photoelectric
An electronic circuit that will terminate the exposure at a pre-set density that translates to proper
optical density is: - Answer-AEC
A measure of the potential speed and ability of the IR to produce an optimal image at a set radiation
dose or stated differently it is the IR's efficiency in converting the dose given into an ideal image is
called: - Answer-(DQE) detective quantum efficiency
Three tomograms are completed, one with an amplitude of 20 degrees, one with an amplitude of 30
degrees, and one with an amplitude of 60 degrees. Which tomographic cut would be the thickest? -
Answer-20 degree
For the open-mouth modification of the Waters method, the central ray should exit the: - Answer-
acanthion
Answers
medical term for dizziness - Answer-vertigo
destructive pathologies result in a ___________ in density - Answer-decrease
A technologist produces a lumbar spine film with a 16:1 grid, using 80 mAs. What mAs would be needed
if he used an 8:1 grid? - Answer-53.3
Calculate the mAS if the technologist sets factors of 200 mA and 35 milliseconds. - Answer-7 mAs
Where is the central ray directed for a lateral thoracic spine? - Answer-level of T7
Digital radiography (DR) is characterized by - Answer-The use of reusable receptors
Several methods are available to perform an axiolateral oblique of the mandible to demonstrate the
body, symphysis, or ramus. What is the central angulation for all of these projections? - Answer-25
degrees cephalad
The radiographer took a knee x-ray using 3 mAs and 60 kVp. The x-ray was too light and he needs to
double the density by increasing the kvp. What kVp should he use? - Answer-69
, All of the following are types of image forming x-rays EXCEPT: - Answer-coherent x-rays
What is the central ray angulation for the AP axial projection for the zygomatic arches? - Answer-30
degrees caudad
When the patient can not be placed in a true horizontal position for the L5-S1 lateral projection, the
central ray must be angled: - Answer-5 degrees for men, 8 for women, caudad
An exposure of 240 mR is recorded at a distance of 40 inches. If the same technical factors are used,
what will the exposure be if the distance is decreased to 30 inches? - Answer-427 mR
Raising the kVp increases _____________ interactions and decreases___________ interactions. -
Answer-Compton scatter, Photoelectric
An electronic circuit that will terminate the exposure at a pre-set density that translates to proper
optical density is: - Answer-AEC
A measure of the potential speed and ability of the IR to produce an optimal image at a set radiation
dose or stated differently it is the IR's efficiency in converting the dose given into an ideal image is
called: - Answer-(DQE) detective quantum efficiency
Three tomograms are completed, one with an amplitude of 20 degrees, one with an amplitude of 30
degrees, and one with an amplitude of 60 degrees. Which tomographic cut would be the thickest? -
Answer-20 degree
For the open-mouth modification of the Waters method, the central ray should exit the: - Answer-
acanthion
