Radiology Image Formation Questions Graded A+
2025/2026
As stated in the previous question, after changing to a 16-inch PID you decide to
change from D- to E- speed film. The new exposure at the same milliamperage and
kilovolt peak for the lower premolar will be: - 24 impulses
The most likely cause for a film with very poor definition is: - patient movement
A radiograph that has many dark and light areas but few gray areas is said to have: -
high contrast
To increase contrast, the operator should decrease: - kilovolt peak
Use of a kilovolt peak between 45 and 65 produces: - scatter radiation
The difference in degrees of blackness on a radiograph is called: - contrast
A long FFD is desirable because: - the central rays of the primary beam are less
divergent
Radiographs should always be viewed: - on a viewbox
Which of the following materials is most effective in absorbing x-rays: - gold
If the intensity of a beam of radiation is 12 at a point 12 inches from the target, the
intensity of the beam at 24 inches is: - 3
You have taken a radiograph of a patient. The resulting image is thin (light). The
adjustment that should be made for the retake is: - increase the milliamperage
If the distance from the source of radiation to the target film is decreased and no other
adjustments are made, the resultant radiograph will: - be darker
Changing the 75kVp to 90 kVp will: - decrease radiographic contrast
Which of the following causes film fog on radiographs: - scattered radiation, improper
safe lighting and light leaks in the darkroom
If the PID is 2-inches away from the patient's skin instead of almost touching, the
resulting radiograph will be: - underexposed
The criteria for an acceptable radiograph include: - (1) proper definition
(2) proper detail
(3) sharpness
(4) desirable contrast
2025/2026
As stated in the previous question, after changing to a 16-inch PID you decide to
change from D- to E- speed film. The new exposure at the same milliamperage and
kilovolt peak for the lower premolar will be: - 24 impulses
The most likely cause for a film with very poor definition is: - patient movement
A radiograph that has many dark and light areas but few gray areas is said to have: -
high contrast
To increase contrast, the operator should decrease: - kilovolt peak
Use of a kilovolt peak between 45 and 65 produces: - scatter radiation
The difference in degrees of blackness on a radiograph is called: - contrast
A long FFD is desirable because: - the central rays of the primary beam are less
divergent
Radiographs should always be viewed: - on a viewbox
Which of the following materials is most effective in absorbing x-rays: - gold
If the intensity of a beam of radiation is 12 at a point 12 inches from the target, the
intensity of the beam at 24 inches is: - 3
You have taken a radiograph of a patient. The resulting image is thin (light). The
adjustment that should be made for the retake is: - increase the milliamperage
If the distance from the source of radiation to the target film is decreased and no other
adjustments are made, the resultant radiograph will: - be darker
Changing the 75kVp to 90 kVp will: - decrease radiographic contrast
Which of the following causes film fog on radiographs: - scattered radiation, improper
safe lighting and light leaks in the darkroom
If the PID is 2-inches away from the patient's skin instead of almost touching, the
resulting radiograph will be: - underexposed
The criteria for an acceptable radiograph include: - (1) proper definition
(2) proper detail
(3) sharpness
(4) desirable contrast
