ARRT Practice Exam – core Questions
And Answers
Which of the following statements are correct regarding the link
between radiation dose and genetic effects?
1. The link has been demonstrated in human studies.
2. The link has been demonstrated in animal studies.
3. Increased risk to humans cannot be predicted with respect to an
individual. -
correct answer ✅2 and 3 only
Which of the following changes in kabob will result in the greatest
reduction of patient dose when mAs is adjusted to compensate for
the change?
A. Decrease kVp by 30%
B. Decrease kVp by 15%
C. Increase kVp by 15%
D. Increase kVp by 30% -
correct answer ✅D. Increase kVp by 30%
Which of the following IR system speeds will result in the lowest
patient dose? -
correct answer ✅B. Faster-speed IR system
,ARRT Practice Exam – core Questions
And Answers
What is the primary purpose of using gonad shields during
radiography? -
correct answer ✅Reduce the likelihood of genetic effects
Which of the following are types of gonad shields?
1. Aperture
2. Contact
3. Shadow -
correct answer ✅2 and 3 only
When should gonad shielding be used? -
correct answer ✅When the gonads are within 5 cm of the
radiation field.
The greatest cause of unnecessary radiation to patients that can be
controlled by the limited operator is: -
correct answer ✅repeat exposures
The limited operator can reduce repeat exposures by: -
correct answer ✅clearly instructing patients
, ARRT Practice Exam – core Questions
And Answers
How does x-ray beam restriction minimize patient exposure? -
correct answer ✅It limits the radiation field to the area of interest.
What is a device that allows the limited operator to vary the size of
the radiation field? -
correct answer ✅Collimator
How does filtration reduce patient exposure? -
correct answer ✅Removes longer-wavelength photons
What is the NCRP recommendation for the amount of total
filtration? -
correct answer ✅2.5 mm AL equiv
What are the three principal methods used to protect limited
operators from unnecessary radiation exposure? -
correct answer ✅Time, distance, shielding
Which of the following is not a type of personal radiation shielding?
A. Apron
B. Glove
And Answers
Which of the following statements are correct regarding the link
between radiation dose and genetic effects?
1. The link has been demonstrated in human studies.
2. The link has been demonstrated in animal studies.
3. Increased risk to humans cannot be predicted with respect to an
individual. -
correct answer ✅2 and 3 only
Which of the following changes in kabob will result in the greatest
reduction of patient dose when mAs is adjusted to compensate for
the change?
A. Decrease kVp by 30%
B. Decrease kVp by 15%
C. Increase kVp by 15%
D. Increase kVp by 30% -
correct answer ✅D. Increase kVp by 30%
Which of the following IR system speeds will result in the lowest
patient dose? -
correct answer ✅B. Faster-speed IR system
,ARRT Practice Exam – core Questions
And Answers
What is the primary purpose of using gonad shields during
radiography? -
correct answer ✅Reduce the likelihood of genetic effects
Which of the following are types of gonad shields?
1. Aperture
2. Contact
3. Shadow -
correct answer ✅2 and 3 only
When should gonad shielding be used? -
correct answer ✅When the gonads are within 5 cm of the
radiation field.
The greatest cause of unnecessary radiation to patients that can be
controlled by the limited operator is: -
correct answer ✅repeat exposures
The limited operator can reduce repeat exposures by: -
correct answer ✅clearly instructing patients
, ARRT Practice Exam – core Questions
And Answers
How does x-ray beam restriction minimize patient exposure? -
correct answer ✅It limits the radiation field to the area of interest.
What is a device that allows the limited operator to vary the size of
the radiation field? -
correct answer ✅Collimator
How does filtration reduce patient exposure? -
correct answer ✅Removes longer-wavelength photons
What is the NCRP recommendation for the amount of total
filtration? -
correct answer ✅2.5 mm AL equiv
What are the three principal methods used to protect limited
operators from unnecessary radiation exposure? -
correct answer ✅Time, distance, shielding
Which of the following is not a type of personal radiation shielding?
A. Apron
B. Glove
