Dental Radiology Chap 4 Questions and
Answers Already Passed
Which type of radiation interacts with the patient to create scatter radiation?
a) Primary radiation
✔✔b) Secondary radiation
c) Bremsstrahlung radiation
d) Characteristic radiation
What is the primary purpose of using a position-indicating device (PID) in dental radiography?
✔✔a) To direct the X-ray beam at the correct angle
b) To protect the dental assistant from radiation
c) To reduce image contrast
d) To limit exposure time
Which part of the X-ray machine is responsible for generating the X-rays?
a) Transformer
b) Tube head
✔✔c) X-ray tube
1
,d) Collimator
What does the term "mA" represent in dental radiography?
a) The distance between the X-ray tube and the patient
✔✔b) The milliamperage, or the quantity of X-rays produced
c) The peak energy of the X-ray beam
d) The exposure time during an X-ray procedure
Which type of X-ray film is commonly used in dental radiography?
a) Fluoroscopic film
b) Medical X-ray film
✔✔c) Dental X-ray film
d) Panoramic X-ray film
What is the primary role of a radiographic grid in dental radiology?
a) To reduce the amount of radiation reaching the patient
✔✔b) To reduce scatter radiation and improve image contrast
c) To increase the resolution of the image
2
, d) To enhance the sharpness of the radiograph
How does the X-ray tube's anode function in dental radiography?
a) It absorbs all radiation
b) It directs the X-ray beam toward the patient
✔✔c) It serves as the target for electron interaction, producing X-rays
d) It cools down the X-ray tube
Which of the following components controls the duration of the exposure in dental radiography?
✔✔a) Timer
b) Transformer
c) Collimator
d) Cathode
What is the purpose of using a collimator in dental radiography?
a) To increase the resolution of the radiograph
✔✔b) To limit the size of the X-ray beam and reduce unnecessary radiation
c) To protect the dental assistant from exposure
3
Answers Already Passed
Which type of radiation interacts with the patient to create scatter radiation?
a) Primary radiation
✔✔b) Secondary radiation
c) Bremsstrahlung radiation
d) Characteristic radiation
What is the primary purpose of using a position-indicating device (PID) in dental radiography?
✔✔a) To direct the X-ray beam at the correct angle
b) To protect the dental assistant from radiation
c) To reduce image contrast
d) To limit exposure time
Which part of the X-ray machine is responsible for generating the X-rays?
a) Transformer
b) Tube head
✔✔c) X-ray tube
1
,d) Collimator
What does the term "mA" represent in dental radiography?
a) The distance between the X-ray tube and the patient
✔✔b) The milliamperage, or the quantity of X-rays produced
c) The peak energy of the X-ray beam
d) The exposure time during an X-ray procedure
Which type of X-ray film is commonly used in dental radiography?
a) Fluoroscopic film
b) Medical X-ray film
✔✔c) Dental X-ray film
d) Panoramic X-ray film
What is the primary role of a radiographic grid in dental radiology?
a) To reduce the amount of radiation reaching the patient
✔✔b) To reduce scatter radiation and improve image contrast
c) To increase the resolution of the image
2
, d) To enhance the sharpness of the radiograph
How does the X-ray tube's anode function in dental radiography?
a) It absorbs all radiation
b) It directs the X-ray beam toward the patient
✔✔c) It serves as the target for electron interaction, producing X-rays
d) It cools down the X-ray tube
Which of the following components controls the duration of the exposure in dental radiography?
✔✔a) Timer
b) Transformer
c) Collimator
d) Cathode
What is the purpose of using a collimator in dental radiography?
a) To increase the resolution of the radiograph
✔✔b) To limit the size of the X-ray beam and reduce unnecessary radiation
c) To protect the dental assistant from exposure
3
