©THESTAR 2024/2025 ALL RIGHTS RESERVED 11:09PM. A+
Chapter 11 radiation Protection Exam
Questions With Correct Answers 100%
Verified.
The radiographic beam should be collimated so that it is which of the following?
A. Slightly larger that the image receptor
B. No larger than the image receptor
C. Twice as large as the image receptor
D. Four times as large as the image receptor - Answer✔B. no larger than the image receptor
Both alignment and length and width dimensions of the radiographic and light beams must
correspond to within:
A. 1% of the SID
B. 2% of the SID
C. 5% of the SID
D. 10% of the SID - Answer✔B. 2%
What is the function of a filter in diagnostic radiology?
A. To permit only alpha rays to reach the patients skin
B. To permit only beta particles to interact with the atoms of the patients body
C. To decrease the x-radiation dose to the patients skin and superficial tissue
D. to remove gamma radiation from useful beam - Answer✔C. to decrease the c-radiation dose
to the patients skin and superficial tissue
HVL maybe defines as the thickness of a designated absorber required to do which of the
following?
1
, ©THESTAR 2024/2025 ALL RIGHTS RESERVED 11:09PM. A+
A. increase the intensity of the primary beam by 50% of its initial value
B. increase the intensity of the primary beam by 25% of its initial value
C. Decrease the intensity of the primary beam by 50% of its initial value
D. Decrease the intensity of the primary beam by 25% of its initial value - Answer✔C. decrease
intensity by 50% of the primary beam
When compared with conventional screenfilm systems, the photostimulable phosphor in the
computed radiography imaging plate is much more sensitive to scatter radiation before and
after it is sensitized through exposure to a radiographic beam. Because of this increased
insensitivity, which of the following is true?
1) Five millimeters of added aluminum equivalent filtration must always be used during routine
CR imaging
2) A radiographic grid may be used more frequently during CR imaging
3) Any source to image receptor distance can be used during CR imaging without adjustment in
technical exposure factors.
A. 1 only
B. 2 only
C. 3 only
D. 1,2, and 3 - Answer✔B. 2- a radiographic grid may be used more frequently during CR
imaging
To minimize skin exposure to electrons produces by photon interaction with the collimator,
how far below the collimator should the patient's skin surface be?
A. At least 1cm below
B. At least 5 cm below
C. At least 10 cm below
D. at least 15 cm below - Answer✔D. 15cm
Which of the following aluminum equivalents for total permanent filtration meets the
minimum requirement for mobile diagnostic and fluoroscopic equipment?
A. 0.5 mm aluminum equivalent
B. 1.0 mm aluminum equivalent
2
Chapter 11 radiation Protection Exam
Questions With Correct Answers 100%
Verified.
The radiographic beam should be collimated so that it is which of the following?
A. Slightly larger that the image receptor
B. No larger than the image receptor
C. Twice as large as the image receptor
D. Four times as large as the image receptor - Answer✔B. no larger than the image receptor
Both alignment and length and width dimensions of the radiographic and light beams must
correspond to within:
A. 1% of the SID
B. 2% of the SID
C. 5% of the SID
D. 10% of the SID - Answer✔B. 2%
What is the function of a filter in diagnostic radiology?
A. To permit only alpha rays to reach the patients skin
B. To permit only beta particles to interact with the atoms of the patients body
C. To decrease the x-radiation dose to the patients skin and superficial tissue
D. to remove gamma radiation from useful beam - Answer✔C. to decrease the c-radiation dose
to the patients skin and superficial tissue
HVL maybe defines as the thickness of a designated absorber required to do which of the
following?
1
, ©THESTAR 2024/2025 ALL RIGHTS RESERVED 11:09PM. A+
A. increase the intensity of the primary beam by 50% of its initial value
B. increase the intensity of the primary beam by 25% of its initial value
C. Decrease the intensity of the primary beam by 50% of its initial value
D. Decrease the intensity of the primary beam by 25% of its initial value - Answer✔C. decrease
intensity by 50% of the primary beam
When compared with conventional screenfilm systems, the photostimulable phosphor in the
computed radiography imaging plate is much more sensitive to scatter radiation before and
after it is sensitized through exposure to a radiographic beam. Because of this increased
insensitivity, which of the following is true?
1) Five millimeters of added aluminum equivalent filtration must always be used during routine
CR imaging
2) A radiographic grid may be used more frequently during CR imaging
3) Any source to image receptor distance can be used during CR imaging without adjustment in
technical exposure factors.
A. 1 only
B. 2 only
C. 3 only
D. 1,2, and 3 - Answer✔B. 2- a radiographic grid may be used more frequently during CR
imaging
To minimize skin exposure to electrons produces by photon interaction with the collimator,
how far below the collimator should the patient's skin surface be?
A. At least 1cm below
B. At least 5 cm below
C. At least 10 cm below
D. at least 15 cm below - Answer✔D. 15cm
Which of the following aluminum equivalents for total permanent filtration meets the
minimum requirement for mobile diagnostic and fluoroscopic equipment?
A. 0.5 mm aluminum equivalent
B. 1.0 mm aluminum equivalent
2
