RAD 122 Final Exam Questions & Answers 2024/2025
When did Roentgen discover x-rays? - ANSWERSNovember 8, 1895
A device used to control the size and shape of an x-ray beam/radiation field is the: - ANSWERSCollimator
An x-ray machine that permits viewing of the x-ray image in motion in rea...
When did Roentgen discover x-rays? - ANSWERSNovember 8, 1895
A device used to control the size and shape of an x-ray beam/radiation field is the: - ANSWERSCollimator
An x-ray machine that permits viewing of the x-ray image in motion in real-time is called: -
ANSWERSFluoroscope
The anode or positive end of the x-ray tube is the end that contains the: - ANSWERSTarget
The cathode or negative end of the x-ray tube contains the: - ANSWERSFilament
What is the measure of the current flow rate in the x-ray tube circuit? - ANSWERSmA (milliamperage)
A measure of the potential difference across the x-ray tube: - ANSWERSkVp (kilovoltage)
The distance between the source of the x-ray beam and the IR - ANSWERSSID (source-image distance)
Which law states that the intensity of the radiation is inversely proportional to the square of the
distance? - ANSWERSInverse square law
The imaging system that provides an instantaneous digital image on a monitor is called: -
ANSWERSDigital radiography
The distance between the object and the IR is referred to as the: - ANSWERSOID (object-image distance)
, The factor(s) that affect magnification are: - ANSWERSSID and OID
To increase the penetration of the x-ray beam, which factor should be increased? - ANSWERSKilovoltage
True or false: Shape distortion is caused by misalignment of the tube, part, and IR - ANSWERSTrue
Which of the following will result in the lowest patient dose?
a) Low kVp and high mAs
b) High kVp and low mAs
c) Low kVp and long exposure time
d) Long exposure time and short SID - ANSWERSB - High kVp and low mAs
True or false: Deterministic radiation effects occur randomly with respect to individuals - ANSWERSFalse,
that would be stochastic
True or false: Young cells are more sensitive to radiation injury than older cells - ANSWERSTrue
What does ALARA stand for? - ANSWERSAs low as reasonably achievable
What are the three principle methods of protection for radiographers? - ANSWERSTime, distance, and
shielding
A professional organization for radiographers and all radiologic technologists is: - ANSWERSASRT
The organization that establishes minimum standards for certification in various imaging specialties -
ANSWERSARRT
Mandatory, specific, and enforceable standards of minimally acceptable professional conduct for all
registered technologists are called: - ANSWERSThe Rules of Ethics
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