The control area with the barrier window is classified as:
a primary barrier
uncontrolled area
a radiation free area
a secondary barrier
a secondary barrier
Rationale: The x-ray tube should not be able to be directed at the control booth area. The control booth area is constructed as a secondary barrier with the lead glass window containing 1.5 mm lead equivalent.
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A pediatric patient weighs 25 lbs. Using Clark's Rule, ________ mg is an appropriate dose for the patient if the normal adult dose is 500mg
A) 12 B) 83.3 C) 47.2 D) 100
In adults who develop cataracts, surgical removal of the cataract
a. Fully restores visual function b. Partially restores visual function c. Has no effect on visual function d. Improves cortical connections, but not acuity
Which of the following terms is the minimum temperature at which a liquid gives off sufficient vapors to ignite, but still not sustain combustion?
A. Fire point B. Flash point C. Vapor point D. Pressure point
One reason for fire modeling is
a. burning for training and understanding of fire b. avoiding repetitious full-scale testing c. educating fire engineers d. helping fire investigators explain fire