The formula for ____ is the average annual heating divided by average annual power consumption.
A. AFUE
B. HSPF
C. SHF
D. SEER
Answer: B
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How many centimeters are there in one meter?
Figure
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The amount of each board left exposed to the weather is called the ____ of the siding.
A. batten B. course C. exposure D. pattern
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In a dual-fuel heat pump packaged system, when does the furnace go into use?
A) Only during winter conditions B) Once the outdoor temperature is below the balance point C) Once the outdoor temperature drops to the balance point D) Only when it is most economical
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Which of the following refrigerant safety designations indicate the refrigerant is somewhat flammable?
A) A2 B) B3 C) A1 D) B1
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