All of the following are included in an exposure control plan except:
a. incident reporting. c. hazard communication.
b. mandatory HBV vaccination. d. engineering controls.
ANSWER: B
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Which of the following is a true statement about the delivery of warm, humidified gas to the lungs?
a. The gas delivered to the nose or mouth contains 95% relative humidity and has an absolute humidity of 28 mg/L to 34 mg/L at 29° C to 32° C. b. The gas delivered to the hypopharynx contains 50% relative humidity and has an absolute humidity level of 10 mg/L at 22° C. c. The gas delivered to the midtrachea con-tains 50% relative humidity and has an absolute humidity level of 36 mg/L to 40 mg/L at 31° C to 35° C. d. The gas delivered to the midtrachea con-tains 100% relative humidity and has an absolute humidity level of 36 mg/L to 40 mg/L at 31° C to 35° C.
Radiation is best described as a:
a. substance that occupies space. b. resistor of heat. c. type of electricity. d. movement of energy.
Which of these statements regarding viewing equipment is FALSE?
a. A magnifying glass may be used to aid the viewer. b. Clear plastic film mounts help reduce glare and enhance the detail of the images. c. Subdued room lighting is best for viewing radiographs. d. Viewbox lighting must be of uniform intensity and evenly diffused.
When the supply of oxygen in the blood is low, the skin looks rather pale or
A. pink. B. rosy. C. yellow. D. bluish.