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LRA 216 FINAL (ACTUAL 2025/2026) QUIZ WITH
100% VERIFIED CORRECT SOLUTIONS
Which of the following produce the greatest radiation exposure in diagnostic
radiology? - (answer)fluoroscopic procedures
The number of repeat radiographs can be reduced by - (answer)eliminating
voluntary patient motion using immobilization devices
How much total filtration is required when using over 70 kVp? - (answer)2.5mm
al
To within what percent of the SID must the collimator light and actual irradiated
area be accurate? - (answer)2%
Which of the following combinations would reduce patient radiation dose during
an x-ray exam? - (answer)higher kVp, lower mAs, increased filtration
Which of the following is the most versatile type of x-ray beam limitation device?
- (answer)collimation
Which of the following is not a type of beam limitation device? - (answer)Filter is
not one of them
Collimator
Cone
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Aperture diaphragm
The function of a filter is to remove which of the following from the x-ray beam? -
(answer)remove long wavelength
Personnel monitors should be worn whenever radiation workers are likely to risk
receiving ____% or more of the annual effective dose limit. - (answer)10%
Involuntary patient motion is best dealt with by - (answer)using a short exposure
time with a high mA selection
Applying the inverse square law, if we double our distance from the source, the
intensity at our new distance is _____ as much as the original intensity. -
(answer)1/4
The fluoroscopic exposure switch is controlled by the radiologist by using either a
foot pedal, or a hand switch located on the fluoro carriage. This switch is
considered a - (answer)deadman type
The x-ray tube must be enclosed by a lead-lined metal covering, requiring _____
Pb. - (answer)1/16 inch
length of exposure cord for control booth
The exposure cord for the control booth must be - (answer)6 feet/ attached to
control booth
LRA 216 FINAL (ACTUAL 2025/2026) QUIZ WITH
100% VERIFIED CORRECT SOLUTIONS
Which of the following produce the greatest radiation exposure in diagnostic
radiology? - (answer)fluoroscopic procedures
The number of repeat radiographs can be reduced by - (answer)eliminating
voluntary patient motion using immobilization devices
How much total filtration is required when using over 70 kVp? - (answer)2.5mm
al
To within what percent of the SID must the collimator light and actual irradiated
area be accurate? - (answer)2%
Which of the following combinations would reduce patient radiation dose during
an x-ray exam? - (answer)higher kVp, lower mAs, increased filtration
Which of the following is the most versatile type of x-ray beam limitation device?
- (answer)collimation
Which of the following is not a type of beam limitation device? - (answer)Filter is
not one of them
Collimator
Cone
, 2|Page
Aperture diaphragm
The function of a filter is to remove which of the following from the x-ray beam? -
(answer)remove long wavelength
Personnel monitors should be worn whenever radiation workers are likely to risk
receiving ____% or more of the annual effective dose limit. - (answer)10%
Involuntary patient motion is best dealt with by - (answer)using a short exposure
time with a high mA selection
Applying the inverse square law, if we double our distance from the source, the
intensity at our new distance is _____ as much as the original intensity. -
(answer)1/4
The fluoroscopic exposure switch is controlled by the radiologist by using either a
foot pedal, or a hand switch located on the fluoro carriage. This switch is
considered a - (answer)deadman type
The x-ray tube must be enclosed by a lead-lined metal covering, requiring _____
Pb. - (answer)1/16 inch
length of exposure cord for control booth
The exposure cord for the control booth must be - (answer)6 feet/ attached to
control booth
