Radiology Exam Questions All Solved
Current Update
Which of the following is bombarded with electrons and releases x-rays? - Answer -
Anode
Which of the following shapes and sizes the x-ray beam? - Answer - Collimator
Image contrast is related to the number of shades of gray that are represented. -
Answer - True
Which of the following adjustments on the control panel controls the penetrating power
of the x-rays produced? - Answer - kVp
Areas on the radiograph where x-rays hit show as white regions that are called
radiopaque. - Answer - False
Ms. Jones bitewings turned out poorly due to the poor contrast of the radiographic
image. Which of the following settings most impacts the contrast of an image? - Answer
- Kilovoltage
Which of the following is not related to limiting patient exposure to x-radiation? - Answer
- Use of a film badge
Which of the following reduces patient exposure to x-radiation? - Answer - Longer PID
Rapid turnover of cells in a tissue is usually an indication that the tissue is sensitive to
damage by ionizing radiation. - Answer - True
Which of the following techniques can be used to reduce operator exposure to x-rays? -
Answer - Moving six feet from the tubehead Correct
Scatter radiation is produced when the primary beam is weakened and deviated in its
path, thus interacting with patient body tissues. - Answer - Correct True
Which of the effects of radiation exposure are passed along to future generations? -
Answer - Genetic effects
Which digital radiography technique uses intraoral sensors that send information to a
computer for interpretation? - Answer - Direct imaging
Your dentist wishes to convert her radiograph films to digital images for storage. Which
technique(s) would be suited for that purpose? - Answer - Indirect imaging by scanning
, Digital radiographs expose the patient to less radiation than traditional film-based
systems. - Answer - True
Phosphor storage plate systems have the advantage of requiring less radiation than
direct digital systems and are preferred, as a result. - Answer - False
Which of the following is a disadvantage of digital radiography over traditional film-
based methods? - Answer - Digital sensors are bulky and uncomfortabl
Which of the following statements about digital sensors is incorrect? - Answer - They
can be heat-sterilized with caution
What term is used to describe a radiograph that displays the whole tooth from crown to
root tip? - Answer - Periapical
How many posterior periapical radiographs are included in a standard full mouth
survey? - Answer - 8
The paralleling technique requires that the film and long axis of the tooth be
perpendicular to each other with the central ray parallel to the film. - Answer - False
What size film is used for pediatric patients? - Answer - 0
Bitewing radiographs are considered the best for visualizing decay and early loss of
alveolar bone. - Answer - True
Ms. Smith's maxillary periapical radiographs show the teeth as short and squat. What is
a likely cause of this? - Answer - Too steep vertical angulatio
Inadequate vertical angulation when using the bisecting technique to take a periapical
radiograph results in what type of error? - Answer - Elongation
The maxillary occlusal radiograph is taken at a 65-degree angle through the bridge of
the nose. - Answer - True
The bisecting technique requires that the film and long axis of the tooth be
perpendicular to each other, with the central ray perpendicular to the film. - Answer -
False
What size film is commonly used for a bisecting angle survey? - Answer - 2
A vertical angulation greater than 0 degrees is used for maxillary periapicals. - Answer -
True
Current Update
Which of the following is bombarded with electrons and releases x-rays? - Answer -
Anode
Which of the following shapes and sizes the x-ray beam? - Answer - Collimator
Image contrast is related to the number of shades of gray that are represented. -
Answer - True
Which of the following adjustments on the control panel controls the penetrating power
of the x-rays produced? - Answer - kVp
Areas on the radiograph where x-rays hit show as white regions that are called
radiopaque. - Answer - False
Ms. Jones bitewings turned out poorly due to the poor contrast of the radiographic
image. Which of the following settings most impacts the contrast of an image? - Answer
- Kilovoltage
Which of the following is not related to limiting patient exposure to x-radiation? - Answer
- Use of a film badge
Which of the following reduces patient exposure to x-radiation? - Answer - Longer PID
Rapid turnover of cells in a tissue is usually an indication that the tissue is sensitive to
damage by ionizing radiation. - Answer - True
Which of the following techniques can be used to reduce operator exposure to x-rays? -
Answer - Moving six feet from the tubehead Correct
Scatter radiation is produced when the primary beam is weakened and deviated in its
path, thus interacting with patient body tissues. - Answer - Correct True
Which of the effects of radiation exposure are passed along to future generations? -
Answer - Genetic effects
Which digital radiography technique uses intraoral sensors that send information to a
computer for interpretation? - Answer - Direct imaging
Your dentist wishes to convert her radiograph films to digital images for storage. Which
technique(s) would be suited for that purpose? - Answer - Indirect imaging by scanning
, Digital radiographs expose the patient to less radiation than traditional film-based
systems. - Answer - True
Phosphor storage plate systems have the advantage of requiring less radiation than
direct digital systems and are preferred, as a result. - Answer - False
Which of the following is a disadvantage of digital radiography over traditional film-
based methods? - Answer - Digital sensors are bulky and uncomfortabl
Which of the following statements about digital sensors is incorrect? - Answer - They
can be heat-sterilized with caution
What term is used to describe a radiograph that displays the whole tooth from crown to
root tip? - Answer - Periapical
How many posterior periapical radiographs are included in a standard full mouth
survey? - Answer - 8
The paralleling technique requires that the film and long axis of the tooth be
perpendicular to each other with the central ray parallel to the film. - Answer - False
What size film is used for pediatric patients? - Answer - 0
Bitewing radiographs are considered the best for visualizing decay and early loss of
alveolar bone. - Answer - True
Ms. Smith's maxillary periapical radiographs show the teeth as short and squat. What is
a likely cause of this? - Answer - Too steep vertical angulatio
Inadequate vertical angulation when using the bisecting technique to take a periapical
radiograph results in what type of error? - Answer - Elongation
The maxillary occlusal radiograph is taken at a 65-degree angle through the bridge of
the nose. - Answer - True
The bisecting technique requires that the film and long axis of the tooth be
perpendicular to each other, with the central ray perpendicular to the film. - Answer -
False
What size film is commonly used for a bisecting angle survey? - Answer - 2
A vertical angulation greater than 0 degrees is used for maxillary periapicals. - Answer -
True
