HERS Rater Exam Practice Set questions with answers,

HERS Rater Exam Practice Set questions
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with answers \|




A HERS score can be used for which of the following?
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A) LEED for Homes
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B) Energy Efficient Mortgages
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C) National Association of Home Builders
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D) All of the above - CORRECT ANSWERS ✔✔D) All of the above
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Raters provide what to the builder (3 things) - CORRECT ANSWERS ✔✔1.
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Rating report \| \|




2. Conflict of interest disclosure form
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3. consumer complaint process
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Number of climate zones in the US - CORRECT ANSWERS ✔✔8
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DelMarVa in which climate zone - CORRECT ANSWERS ✔✔4
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,3 main programs that use the HERS index - CORRECT ANSWERS ✔✔1.
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Energy Star \|




2. Challenge Home
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3. HUD's programs
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Heating Degree Days - CORRECT ANSWERS ✔✔total number of degrees
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colder than base temperature (HDD65) during the "heating season"
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Ex) if temp for 1 hr is 55, then 65-55 = 10 heating degree days for that 1 hr
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Ex2) next hour temp drops to 48 then 65-48 = 17 HDD for that hour and over
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that 2 hours we "picked up" 27 HDD
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Usual base temp for Cooling degree days - CORRECT ANSWERS ✔✔50
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(CDD50)



What are CDD and HDD used for? - CORRECT ANSWERS ✔✔Used to
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estimate amount of energy needed to cool (CDD) or heat (HDD) a homes
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during the cooling (CDD) or heating (HDD season)
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The Reference Home is where on the HERS Index - CORRECT ANSWERS
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✔✔100



4 steps of calculating the HERS index - CORRECT ANSWERS ✔✔1.
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purchased energy fraction (PEF = (total E use - onsite power production) /
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(total E use) \| \|

, 2. (rated home heating x cooling x DWH x lights x
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appliance MBtu's)/(reference home h. x c. x DWH x L. x appliance MBtu's)
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3. ^result is multiplied by PEF
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4. ^result is multiplied by 100
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3 types of ratings - CORRECT ANSWERS ✔✔1. projected rating (no certs
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rewarded)



2. confirmed rating (used for certificated)
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3. sampled rating (sampling) (not for certifying any individual home) (method
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for shortcutting energy verification for large production projects) (generally
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not ideal process)
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QA (quality assurance) vs. QC (quality control) - CORRECT ANSWERS
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✔✔QA: ensures best practice was followed
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QC: ensures that the product was installed correctly and performs as intended
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Equipment gauges must be calibrated every _______ - CORRECT ANSWERS
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✔✔Year



Q represents what? - CORRECT ANSWERS ✔✔Heat flow (in Btu/hr)
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