Practice Test GeeksASHRAE - American Society of Heating, Refrigeration and Air Conditioning Engineers Certification Practice Test
← All ASHRAE Flashcard Decks

Indoor Air Quality and Ventilation Standards Flashcards

7 cards from real ASHRAE practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Indoor Air Quality and Ventilation Standards flashcards as text

  1. Under ASHRAE 62.2 (2016 and later), what is the total required whole-house ventilation rate formula in cfm?

    Answer: 0.03·Afloor + 7.5·(Nbr + 1)

    Qtot = 0.03 cfm/ft² of floor area plus 7.5 cfm per occupant, with occupants assumed as bedrooms plus one.

  2. Per ASHRAE 62.2, what is the minimum airflow for an intermittently operated (demand-controlled) kitchen range hood?

    Answer: 100 cfm

    62.2 requires 100 cfm for demand-controlled kitchen exhaust, or 5 ACH if continuous.

  3. What is the minimum continuous exhaust rate for a bathroom under ASHRAE 62.2?

    Answer: 20 cfm

    Bathrooms need 20 cfm continuous or 50 cfm intermittent exhaust.

  4. ASHRAE Standard 55 considers a space thermally acceptable when PMV falls within which range?

    Answer: -0.5 to +0.5

    A PMV of -0.5 to +0.5 corresponds to PPD below about 10%.

  5. In the ASHRAE 55 graphic comfort zone method, what is the upper limit on humidity ratio?

    Answer: 0.012 lb water/lb dry air

    Standard 55 caps the comfort zone at a humidity ratio of 0.012, about a 62°F dew point.

  6. One met, the metabolic rate of a seated, quiet person, equals approximately how much?

    Answer: 18.4 Btu/h·ft² (58.2 W/m²)

    ASHRAE defines 1 met as 58.2 W/m², or about 18.4 Btu/h·ft² of body surface.

  7. Under ASHRAE 55, above what average air speed must the elevated air speed method (SET-based) be used?

    Answer: 0.2 m/s (40 fpm)

    Above 0.2 m/s (40 fpm), Standard 55 requires the SET-based elevated air speed method for cooling effect.