ICC Residential Energy Inspector/Plans Examiner (Exam 79)

Which code is the primary reference for the ICC Exam 79 Residential Energy Inspector/Plans Examiner?

• AInternational Residential Code (IRC)
• BInternational Energy Conservation Code,
• CInternational Mechanical Code (IMC)
• DASHRAE 90.1

How many multiple-choice questions are on the ICC Exam 79?

• A40
• B50
• C60
• D80

Per IECC Table R402.1.3, what is the minimum prescriptive ceiling R-value for Climate Zones 4 through 8?

• AR-30
• BR-38
• CR-49
• DR-60

Per IECC Table R402.1.2, what is the maximum allowable fenestration U-factor for vertical windows in Climate Zone 5?

• A0.27
• B0.30
• C0.32
• D0.40

Per IECC R402.4.1.2, what is the maximum allowable air leakage rate for a residential dwelling in Climate Zones 3 through 8?

• A3 air changes per hour at 50 pascals
• B5 air changes per hour at 50 pascals
• C7 air changes per hour at 50 pascals
• D0.35 air changes per hour natural

Per IECC R403.3.5, what is the maximum allowable total duct leakage when ducts are located outside the building thermal envelope?

• A4 cfm per 100 square feet of
• B6 cfm per 100 square feet of conditioned floor area
• C8 cfm per 100 square feet of conditioned floor area
• D12 cfm per 100 square feet of conditioned floor area

Per IECC R403.3.1, supply ducts located in attics must be insulated to a minimum of:

• AR-4
• BR-6
• CR-8
• DR-11

Per IECC R404.1, what minimum percentage of permanently installed lamps in lighting fixtures must be high-efficacy lamps?

• A50%
• B75%
• C90%
• D100%

Per IECC R403.1.1, a programmable thermostat on the primary heating or cooling system must be capable of:

• ADaily schedule with different setpoints
• BHeating-only control with no cooling schedule
• CSimultaneous heating and cooling without limit
• DMandatory humidity and CO2 control inputs

Per IECC R402.4.1.1, the air barrier and insulation installation must be verified by:

• APlan review only
• BVisual inspection at framing/insulation
• CCalibrated blower door testing only
• DInfrared imaging mandatory

Per IECC R403.5.3, hot water pipes must be insulated to a minimum of R-3 when they are:

• AWithin 24 inches of the water heater
• B3/4-inch and larger in nominal diameter
• CLocated only in heated spaces
• DRecirculation supply only

Per IECC R401.3, the energy certificate posted on or in the electrical distribution panel must NOT cover:

• AThe electrical distribution panel cover
• BInsulation R-values used in the building
• CFenestration U-factors and SHGC
• DHVAC equipment efficiency ratings

Per IECC R402.2.4, access doors from conditioned to unconditioned space (such as attic hatches) must be insulated to:

• ANo insulation required
• BR-19 minimum
• CThe same R-value as the surrounding
• DR-38 in all climate zones

Per IECC R405, the simulated performance alternative requires the proposed design's annual energy cost to be:

• ALess than or equal to the standard
• BAt least 20% less than the standard reference design
• CEqual to the ERI target for the climate zone
• DIndependent of the standard reference design

Per IECC R406 (ERI compliance), what is the maximum ERI score for a new dwelling in Climate Zone 4 under the 2021 IECC?

• A51
• B54
• C57
• D62

Per IECC R402.1.2, what is the prescriptive minimum wall cavity R-value for wood-frame walls in Climate Zone 5?

• AR-13
• BR-15
• CR-20
• DR-21

Per IECC R402.3.1, what is the maximum solar heat gain coefficient (SHGC) for vertical fenestration in Climate Zone 2?

• A0.25
• B0.30
• C0.40
• DNo limit

Per IECC R503, alterations to existing buildings must:

• ABring the entire building into full compliance with current IECC
• BComply with the IECC for the portion of
• CBe exempt from IECC requirements
• DComply only with the IECC edition in effect when the building was originally built

Per IECC R502, an addition to an existing building must:

• AComply with the IECC as a stand-alone new building
• BComply as part of the existing
• CBe exempt if the addition is under 500 square feet
• DComply only if it is heated

Per IECC R402.2.10, what is the minimum slab edge insulation R-value and depth required in Climate Zone 4?

• AR-5, 24 inches deep
• BR-10, 2 feet deep
• CR-10, 4 feet deep
• DNo insulation required

Per IECC R402.2.1, what is the most common method to verify insulation 'Grade I' installation per Table R402.4.1.1?

• ABare hand contact only
• BVisual inspection with no gaps, voids,
• CInfrared imaging required
• DManufacturer certification only

Per IECC R403.6, mechanical ventilation systems must meet what standard for fan efficacy?

• AMinimum 1.4 cfm/watt for in-line range
• BEquivalent residential range hood fan ratings only
• CNo fan efficacy requirement
• DASHRAE 90.1 commercial fan efficacy ratings

Per IECC R402.4.5, what air sealing is required at recessed lighting fixtures in insulated ceilings?

• ANo air sealing needed if rated IC
• BMust be IC-rated AND labeled airtight
• CMust be hardwired only
• DMay not be installed in insulated ceilings

Per IECC R402.4.3, fenestration air leakage shall not exceed:

• A0.3 cfm per square foot for windows,
• B0.5 cfm per square foot for all fenestration
• C1.0 cfm per square foot for all fenestration
• D2.0 cfm per square foot for site-built fenestration

Per IECC R402.5, the maximum total fenestration U-factor area for tradeoffs is calculated as:

• ATotal fenestration U-factor times area for the proposed design
• BThe UA alternative — sum of U times A
• COnly the wall U-factor
• DFenestration percentage cap of 15%

Per IECC R403.5.4, drain water heat recovery units must:

• ABe required in all new homes
• BBe listed and labeled per CSA B55.1 and
• COperate only on gravity flow
• DBe installed on the cold water inlet only

Per IECC R401.2.1 and R408.2, how many additional efficiency packages must a dwelling comply with beyond the baseline?

• ANone — R408 packages are optional everywhere
• BAt least one of five listed R408.2
• CAll five R408.2 packages
• DA 30% whole-building energy cost reduction

Per IECC R403.7, equipment sizing must be calculated according to:

• AManufacturer's defaults only
• BACCA Manual J for loads and Manual S
• CRule-of-thumb 1 ton per 500 sf
• DASHRAE 62.2 only

Per IECC R402.4.1.2, the blower door air leakage test must be conducted at what pressure differential?

• A25 pascals
• B50 pascals
• C75 pascals
• D100 pascals

Per IECC R403.3.2, ducts must be sealed using which approved methods?

• ACloth-backed rubber adhesive tape (duct tape) only
• BMastic, gaskets, liquids, or tapes
• CFoil-faced tape only
• DNo sealing required at metal-to-metal joints

Per IECC R402.2.8, basement wall insulation must extend from the top of the basement wall to:

• AThe bottom of the rim joist only
• B10 feet below grade or the basement
• C12 inches below grade
• DThe frost line

Per IECC R401.2, compliance with the residential provisions is demonstrated by meeting:

• AOnly the prescriptive path of R402-R404
• BEither the prescriptive path, total UA
• COnly the ERI path
• DASHRAE 90.2 instead of IECC

Per IECC Chapter 2 definitions, a 'continuous insulation' (ci) is insulation that is:

• AInstalled inside framing cavities
• BUninterrupted by framing members other
• CFoam insulation only
• DSpray applied only

Per IECC R301, what determines the climate zone for compliance purposes?

• ALatitude of the building
• BThe county where the building is
• CThe state's average temperature
• DThe owner's choice

Per IECC R402.4.4, the building thermal envelope must include sealing at:

• AOnly exterior wall penetrations
• BAll joints, seams, penetrations, and
• CRoof penetrations only
• DFloor penetrations only

Per IECC R403.5.1, prescriptive maximum hot water pipe length from the water heater (or distribution manifold) to the furthest fixture, for 1/2-inch nominal pipe, is approximately:

• A10 feet
• B30 feet
• C43 feet
• D120 feet

Per IECC R403.5.2, hot water recirculation systems must be controlled by:

• AContinuous pump operation 24/7
• BDemand recognition, time-of-day clock,
• CManual on-off switch only
• DThe municipal water utility

Per IECC R402.2.6, what minimum R-value of insulation is required for steel-frame wall construction in Climate Zone 5 (cavity + continuous)?

• AR-13 cavity only
• BR-13 + R-10ci
• CR-19 cavity only
• DR-21 + R-5ci