Which of the following allows air-to-water systems to run more efficiently than air-to-air systems?
A) Supplemental heat is energized all the time B) Auxiliary heat is not needed as much.
C) They do not need to be defrosted D) Cold temperatures are an optimal environment.
B
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The electromagnetic coupling is one of the simpler ways to obtain an adjustable ____ speed.
a. output b. constant c. input d. highest
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SAD is the major disease problem for the grass species __________
A) bermudagrass B) creeping bentgrass C) ?perennial ryegrass D) St. Augustinegrass
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Magnetic lines of force are called ____.
a. poles b. turns c. flux d. current
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What was the primary activity of Spanish settlements in Florida and New Mexico?
A. military B. economic C. missionary D. exploration E. fur-trading
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