RADR 1313 EXAM 1 QUESTIONS AND
ANSWERS 100% VERIFIED
A radiograph is produced using 40 mAs at 60 kVp. What kVp would be required to
reduce the exposure by half? - ANSWER 51
Increasing the energy of an incident electron will result in the production of an x-ray
photon with - ANSWER greater energy.
Match the best item for the following statement:Requires an increase in mAs as ratio
increases - ANSWER radiographic grids
Which type of radiograph provides the most clinical diagnostic information? - ANSWER
long scale contrast images
The volume of the irradiated tissue increases as
1. field size increases
2. patient thickness increases
3. collimation increases - ANSWER 1 and 2 only
A radiograph with few shades of gray exhibits
1. low contrast
2. high contrast
3. narrow dynamic range - ANSWER 2 and 3 only
As kVp ____, a ____ range of photon energies is produced. - ANSWER increases; wider
A radiograph is produced using 35 mAs at 82 kVp. What kVp would be required to
double the exposure? - ANSWER 95 kVp
The relationship between the intensity of radiation and distance is the - ANSWER
inverse square law.
Match the best item for the following statement:
Determined by photographic properties of the image (being able to see structures) -
ANSWER visibility of detail
Image brightness on an image display monitor can be manipulated using the - ANSWER
window level.
, Which of the choices below does not increase contrast?
1. decreasing filtration
2. increasing field size
3. increasing quality of the beam - ANSWER 2 and 3 only
Increasing field size from 8x10 inches to 14x17 inches, with no other changes, will -
ANSWER increase exposure and increase the amount of scatter radiation produced in
the part
Match the best item for the following statement:
Selection of small and large filament - ANSWER focal spot size
Which of the following factors is involved in the production of scattered radiation?
1. Kilovoltage level
2. Grid Ratio
3. Size of field - ANSWER 1 and 3 only
Which of the following would be a result of a severely underexposed image?
1. Quantum noise
2. Decrease in contrast
3. System noise - ANSWER 1 and 2 only
A increase in x-ray beam filtration
1. reduces contrast
2. increases average photon energy
3. decreases Compton interactions - ANSWER 1 and 2 only
Using digital detector technology, the term used to express exposure to the detector is -
ANSWER exposure index (EI)
Increasing which of the following factors will cause a decrease in IR exposure.
1. collimation
2. Patient thickness
3. Relative Speed (RS) - ANSWER 1 and 2 only
X-ray beam quantity is numerically represented by the - ANSWER Roentgen
ANSWERS 100% VERIFIED
A radiograph is produced using 40 mAs at 60 kVp. What kVp would be required to
reduce the exposure by half? - ANSWER 51
Increasing the energy of an incident electron will result in the production of an x-ray
photon with - ANSWER greater energy.
Match the best item for the following statement:Requires an increase in mAs as ratio
increases - ANSWER radiographic grids
Which type of radiograph provides the most clinical diagnostic information? - ANSWER
long scale contrast images
The volume of the irradiated tissue increases as
1. field size increases
2. patient thickness increases
3. collimation increases - ANSWER 1 and 2 only
A radiograph with few shades of gray exhibits
1. low contrast
2. high contrast
3. narrow dynamic range - ANSWER 2 and 3 only
As kVp ____, a ____ range of photon energies is produced. - ANSWER increases; wider
A radiograph is produced using 35 mAs at 82 kVp. What kVp would be required to
double the exposure? - ANSWER 95 kVp
The relationship between the intensity of radiation and distance is the - ANSWER
inverse square law.
Match the best item for the following statement:
Determined by photographic properties of the image (being able to see structures) -
ANSWER visibility of detail
Image brightness on an image display monitor can be manipulated using the - ANSWER
window level.
, Which of the choices below does not increase contrast?
1. decreasing filtration
2. increasing field size
3. increasing quality of the beam - ANSWER 2 and 3 only
Increasing field size from 8x10 inches to 14x17 inches, with no other changes, will -
ANSWER increase exposure and increase the amount of scatter radiation produced in
the part
Match the best item for the following statement:
Selection of small and large filament - ANSWER focal spot size
Which of the following factors is involved in the production of scattered radiation?
1. Kilovoltage level
2. Grid Ratio
3. Size of field - ANSWER 1 and 3 only
Which of the following would be a result of a severely underexposed image?
1. Quantum noise
2. Decrease in contrast
3. System noise - ANSWER 1 and 2 only
A increase in x-ray beam filtration
1. reduces contrast
2. increases average photon energy
3. decreases Compton interactions - ANSWER 1 and 2 only
Using digital detector technology, the term used to express exposure to the detector is -
ANSWER exposure index (EI)
Increasing which of the following factors will cause a decrease in IR exposure.
1. collimation
2. Patient thickness
3. Relative Speed (RS) - ANSWER 1 and 2 only
X-ray beam quantity is numerically represented by the - ANSWER Roentgen
