Which is an aspect of fiberglass casts that plaster casts do not have?
a. Heavier weight
b. Thicker in diameter
c. Deteriorates when wet
d. More porous
ANS: D
The fiberglass cast is lighter and thinner, yet stronger, than a plaster cast and is more porous, providing better ventilation. The outside may get wet without deterioration. X-rays penetrate synthetic materials better than they do plaster to evaluate the healing process. A combination of plaster and synthetic resin on a gauze backing produces a thinner, more waterproof cast that weighs less and is as strong as a plaster cast.
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A. Quarterly payroll report B. FICA report C. Social Security withholding report D. Tax report
The second digit in NFPA® 220's subclassifications of building types refers to the fire-resistance rating of:
A) structural frames or columns and girders that support loads of more than one floor. B) exterior bearing walls. C) floor construction. D) structural frames or columns and girders that support loads of only one floor.