Intro To RT Safety-PMI Basics Quiz 1A Questions Flashcards
(13 cards)
ALARA- stands for:
A. As little as reasonably achievable
B. As low as reasonably acceptable
C. As little as reasonably acquired
D. As low as reasonably achievable
D. As low as reasonably achievable
The principles of ALARA are products of which three factors
A. Time, distraction, and shielding
B. Shielding, distance, and curies
C. Shielding, distance, and milliamps
D. Time, distance, and shielding
D. Time, distance, and shielding
The testing a radioactive source should be (applied):
A. At the lowest radiation possible
B. At the shortest time possible
C. At the most shielded area distance
D. All of the above
B. At the shortest time possible
Gamma rays are always on as they come from a radiated source., but X-ray is only on the while the energy ( electrical current) is applied ;
A. True
B. False
A. True
The key that radiation ( X- ray or gamma) propagates basically in a___________line
(STRAIGHT )
There is some scatter from RT, but for the most part distance and shielding will no protect from scatter type radiation;
A. True
B. False
A. True
Regarding distance, the principle is that distance from the source will affect the amount of radiation received by the technician;
A. Is very little if the X- ray unit still energized
B. Is the only factor that provides safety from radiation exposure
C. Is a exponentially reduced
D. Is exponentially reduced the closer a technician is the radiation source
C. Is a exponentially reduced
Write the inverse square law:
__________=_________/(_______)2
Intensity = 1/ (distance)2
With a hand held PMI unit, XRF stands for;
A. X- ray field
B. X- ray fluxation
C. X- ray fluorescence
D. None of the above
C. X- ray fluorescence
The abbreviation ALARP, which means as low as rationality probable, is used across industrial industry, medical, and manufacturing where radiation testing is used;
A. True
B. False
B. False
Radiation exposure limits in the US is measured using the term;
A. Milli Rem
B. Milli rad
C. Currie
D. M- Rims
A. Milli Rem
In general, people not using radiation equipment will, in a normal year, be exposed to;
A. ~620 M- ReM
B. Natural radiation
C. Human originated radiation ( dental and airport)
D. All of the above
D. All of the above
Dosimetry, is actually;
A. Radiation monitoring
B. Radiation dose recording
C. Includes badges and rings
D. All of the above
D. All of the above