To calculate the CFM required to provide a given number of air changes in a building, you need:
A) Floor area, ceiling height, and fan horsepower.
B) A psychrometric chart and an enthalpy chart.
C) The floor area, ceiling height, and an enthalpy chart.
D) The floor area and ceiling height.
D
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The hot-wire relay functions as both a starting relay and an overload relay.
Answer the following statement true (T) or false (F)
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An electrolyzer uses electricity to free hydrogen from ____.
a. water b. natural gas c. methanol d. LPG
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Express 14 feet 7 5/8 inches as a decimal fraction in inches to the nearest hundredth.
What will be an ideal response?
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For a given frequency, the capacitive reactance decreases with _____
a. decreasing capacitance b. increasing capacitance c. decreasing inductance d. increasing inductance
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