The insulating concrete form system sandwiches a layer of concrete between panels of _____
a. fiberglass-reinforced plastic
b. polyvinyl chloride
c. foamed polyurethane
d. expanded polystyrene
d
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The simplest form of backflow preventer is the _____.
a. atmospheric vacuum breaker b. dual-check valve backflow preventer c. air gap d. pressure-type vacuum breaker
The design wind speed for a location is the peak
A) 3-s gust speed. B) 60-s gust speed. C) 1-s gust speed. D) 10-s gust speed. E) 5-s gust speed.
Match these descriptions to their corresponding terms
a. work includes planting, transplanting, pruning, fertilizing, or tree removal b. advises private forestland owners, loggers, forest rangers c. studies the trees d. cares for the trees e. provides protection to the tree f. creates new outward growth g. top canopy of the tree h. inactive core that gives a tree strength i. carries water and nutrients from roots to leaves j. carries food down from leaves to stems, trunk, and roots 14. dendrologist 15. silviculturist 16. arborist 17. forestry consultant 18. cambium 19. xylem 20. heartwood 21. crown 22. outer bark 23. phloem
The limit switch is used on the electric element assembly to ____.
A. start the unit if the thermostat malfunctions B. ensure that the fan stops when the unit cools down C. start the unit prematurely on a cold day D. shuts off the unit if high temperature occurs