ICC REI Quiz 2

1) How is "Demand Recirculation Water System" defined? (R202)

Any hot water system with a tankA water distribution system where pumps prime service hot water piping with heated water upon demand Only systems with continuous circulationOnly commercial water heating systems

2) What constitutes a "High-Efficacy Light Source" according to the code? (R202)

Only LED lightsAny lamp with efficacy not less than 65 lumens per watt or luminaires not less than 45 lumens per watt Any ENERGY STAR rated lightOnly fluorescent lights

3) What does "Labeled" mean according to the code? (R202)

Any product with a manufacturer's nameProducts with a label from a recognized testing laboratory or approved agency Only products with warning labelsOnly UL listed products

4) How is "Thermal Isolation" defined in the code? (R202)

Any separation between spacesPhysical and space conditioning separation from conditioned spaces Only insulation in wallsOnly isolation of mechanical systems

5) What is the definition of "Whole-House Mechanical Ventilation System"? (R202)

Any system with an exhaust fanA system designed to mechanically exchange indoor air with outdoor air Only systems with heat recoveryOnly systems that operate continuously

6) Which of the following is a "Skylight" according to the code definition? (R202)

Any roof openingGlass installed at a slope of less than 60 degrees from horizontal Only operable roof windowsOnly tubular daylighting devices

7) What is "On-Site Renewable Energy" as defined in the code? (R202)

Only solar panelsEnergy from renewable resources harvested at the building site Only wind turbinesAny energy not supplied by utilities

8) How is "Zone" defined in the Energy Conservation Code? (R202)

A designated area of a buildingA space with heating or cooling requirements sufficiently similar to use one controlling device Any room with a thermostatOnly areas with the same occupancy classification

9) What is the intent of the Energy Conservation Code? (R101.3)

To minimize building costsTo regulate design and construction for effective use and conservation of energy To restrict building designsTo mandate specific construction types

10) According to the code, how are requirements from referenced codes and standards to be considered? (R108.1)

Optional guidelinesPart of the requirements of this code to the prescribed extent Secondary to local amendmentsOnly applicable if specifically adopted

11) When conflicts occur between provisions of this code and referenced codes, which prevails? (R108.1.1)

The referenced codeThe provisions of this code The most stringent provisionThe most recently published code

12) What action must the code official take in accordance with the decision of the board of appeals? (R110.4)

Further review is requiredImmediate action The decision can be overruledNo action is required

13) What happens if a portion of the Energy Conservation Code is held to be illegal or void? (R107.1)

The entire code is invalidatedSuch a decision does not affect the validity of the remainder of the code A local amendment must be adoptedState law takes precedence

14) Who is required to notify the code official when work is ready for inspection? (R105.5)

The general contractorThe permit holder or their authorized agent The building ownerThe design professional

15) What must occur before a stop work order is lifted? (R109.2)

Payment of additional feesConditions stated in the order must be met A new permit must be obtainedLegal action must be resolved

16) What additional information must be included on certification for sprayed polyurethane foam insulation? (R303.1.1)

Only the brand nameInstalled thickness of areas covered and R-value of installed thickness Only the installation dateOnly the installer's license number

17) What is "ERI Reference Design" according to the code? (R202)

The current building designAny ENERGY STAR certified designOnly PassivHaus certified designs

18) How are climate zones determined according to Section R301.1?

By local jurisdiction onlyFrom Figure R301.1 or Table R301.1 By annual rainfall onlyBy average temperature only

19) What document is given to the code official after the work complies with the code? (R106.1)

Certificate of occupancyNotice of approval Final inspection reportEnergy compliance certificate

20) According to R102.1.1, what programs may the code official deem to exceed energy efficiency required by code?

Only federal programsNational, state, or local energy-efficiency programs Only programs with third-party verificationOnly ENERGY STAR

21) Which of the following is NOT a requirement for construction documents? (R103.2)

Area-weighted U-factor calculationsEquipment and system controlsConstruction schedules Air sealing details

22) What inspection must verify the installation of required high-efficacy lamps and fixtures? (R105.2.5)

Framing inspectionFinal inspection Electrical rough-inMechanical inspection

23) Who is authorized to utilize a registered design professional in reviewing plans for code compliance? (R103.3)

Only the building ownerThe code official Only the contractorOnly the plan examiner

24) What is the definition of "Listed" according to the code? (R202)

Any product with a model numberEquipment included in a list published by an acceptable organization with periodic inspection Only products with UL certificationOnly products manufactured in the USA

25) How are the climate zones identified in Table R301.1 that are considered Warm Humid? (R301.2)

With a hash markWith an asterisk With bold textWith italicized text

26) According to the IECC, which of the following compliance options requires compliance with Sections R401 through R404? (R401.2.1)

Energy Rating Index OptionTotal Building Performance OptionPrescriptive Compliance Option Tropical Climate Region Option

27) When complying with the Total Building Performance Option, what must the proposed design of the building meet if not using one of the additional efficiency package options? (R401.2.5)

Have an annual energy cost equal to the standard reference designHave an annual energy cost less than or equal to 95 percent of the annual energy cost of the standard reference design Have an annual energy cost less than or equal to 90 percent of the annual energy cost of the standard reference designHave an annual energy cost less than or equal to 85 percent of the annual energy cost of the standard reference design

28) For buildings complying with the Energy Rating Index alternative, how much less must the Energy Rating Index value be compared to the Energy Rating Index target specified in Table R406.5? (R401.2.5)

3 percent less5 percent less 7 percent less10 percent less

29) Where must the certificate required by Section R401.3 be posted? (R401.3)

Only on an electrical panelOnly in a utility roomOnly where the furnace is locatedOn a wall in the space where the furnace is located, a utility room or an approved location inside the building

30) When located on an electrical panel, what must the certificate required by Section R401.3 NOT do? (R401.3)

List the R-values of insulationCover or obstruct the visibility of the circuit directory label, service disconnect label or other required labels Indicate the types of heating equipmentShow the code edition under which the structure was permitted

31) What must be included on the permanent certificate regarding on-site photovoltaic panel systems? (R401.3)

Only the array capacityOnly the inverter efficiencyOnly the panel tilt and orientationThe array capacity, inverter efficiency, panel tilt and orientation

32) Which buildings are exempt from the building thermal envelope provisions of Section R402? (R402.1)

Only those with a peak design rate of energy usage less than 3.4 Btu/h × ft² or 1.0 watt/ft² of floor area for space-conditioning purposesOnly those that do not contain conditioned spaceOnly log homes designed in accordance with ICC 400All of the above

33) Wall assemblies in the building thermal envelope must comply with the vapor retarder requirements of which code? (R402.1.1)

34) According to Table R402.1.2, what is the maximum glazed fenestration SHGC for Climate Zone 5? (Table R402.1.2)

0.250.300.40 NR (Not Required)

35) What is the maximum U-factor for skylights in Climate Zone 3 according to Table R402.1.2? (Table R402.1.2)

0.300.500.55 0.65

36) In Climate Zone 4 (except Marine), what is the maximum U-factor for wood frame walls according to Table R402.1.2? (Table R402.1.2)

0.045 0.0600.0840.098

37) According to Table R402.1.3, what is the minimum ceiling R-value required in Climate Zone 3? (Table R402.1.3)

303849 60

38) In Climate Zone 7, what is the minimum required R-value for floor insulation according to Table R402.1.3? (Table R402.1.3)

193038 49

39) Under which circumstances would a maximum U-factor of 0.32 apply to vertical fenestration products in Climate Zone 6? (Table R402.1.3 Note i)

When the building is located above 4,000 feet in elevation When the building is located above 3,000 feet in elevationWhen the building is located in a warm humid locationWhen the building is located in a hurricane-prone region

40) How should cavity insulation alone be used according to Section R402.1.4? (R402.1.4)

To determine compliance with both cavity and continuous insulation R-value requirementsTo determine compliance with the cavity insulation R-value requirements only To determine compliance with the continuous insulation R-value requirements onlyTo determine compliance with the total R-value requirements of the entire wall assembly

41) When insulated siding is used for the purpose of complying with the continuous insulation requirements, how should the manufacturer's labeled R-value be adjusted? (R402.1.4)

Reduced by R-0.5Reduced by R-0.6 Reduced by R-1.0No adjustment is required

42) What is the Total UA alternative as described in Section R402.1.5? (R402.1.5)

When the proposed building's UA is exactly equal to the code-required UAWhen the proposed building's UA is less than or equal to the UA resulting from multiplying the U-factors in Table R402.1.2 by the same assembly area When the proposed building's UA is less than the UA resulting from the prescriptive requirementsWhen the proposed building's UA is adjusted by the climate zone factor

43) In addition to meeting the UA calculation requirements, what else must be met under the Total UA alternative? (R402.1.5)

Only the SHGC requirements of Table R402.1.2Only the maximum fenestration U-factors of Section R402.5Both the SHGC requirements of Table R402.1.2 and the maximum fenestration U-factors of Section R402.5 Neither the SHGC requirements nor the maximum fenestration U-factors

44) Where Section R402.1.3 requires R-49 insulation in the ceiling or attic, what alternative installation would satisfy this requirement? (R402.2.1)

Installing R-30 over 100 percent of the ceiling areaInstalling R-38 over 75 percent of the ceiling areaInstalling R-38 over 100 percent of the ceiling area with the full height extending over the wall top plate at the eaves Installing R-44 over 90 percent of the ceiling area

45) Where Section R402.1.3 requires R-60 insulation in the ceiling or attic, what alternative installation would satisfy this requirement? (R402.2.1)

Installing R-49 over 100 percent of the ceiling area with the full height extending over the wall top plate at the eaves Installing R-38 over 100 percent of the ceiling areaInstalling R-54 over 100 percent of the ceiling areaInstalling R-49 over 85 percent of the ceiling area

46) For ceilings without attics where the required insulation R-value is greater than R-30 but space is limited, what is the minimum required insulation R-value? (R402.2.2)

R-19R-25R-30 R-38

47) What is the maximum area that can utilize the reduced insulation exception for ceilings without attics? (R402.2.2)

300 square feet or 10 percent of the total insulated ceiling area, whichever is less400 square feet or 15 percent of the total insulated ceiling area, whichever is less500 square feet or 20 percent of the total insulated ceiling area, whichever is less 600 square feet or 25 percent of the total insulated ceiling area, whichever is less

48) What must a baffle for air-permeable insulation in vented attics maintain? (R402.2.3)

A net free area opening equal to or greater than the size of the vent A net free area opening equal to half the size of the ventA net free area opening equal to twice the size of the ventA net free area opening of at least 1.5 square inches

49) How far must the baffle for air-permeable insulation in vented attics extend? (R402.2.3)

To the middle of the attic insulationOver the top of the attic insulation Under the attic insulationThrough the attic insulation

50) Where soffit venting is not continuous, how must baffles be installed? (R402.2.3)

Only above insulationOnly at each vent openingOnly at the eave perimeterContinuously to prevent ventilation air in the eave soffit from bypassing the baffle

51) To what R-value must access hatches and doors from conditioned to unconditioned spaces be insulated? (R402.2.4)

R-10 in all climate zonesThe same R-value required by Table R402.1.3 for the wall or ceiling in which they are installed Half the R-value required for the wall or ceiling in which they are installedThe minimum R-value specified in Table R402.2.4

52) Which of the following is exempt from meeting the insulation requirements for access hatches and doors? (R402.2.4)

All horizontal pull-down stair-type access hatchesAll vertical doors between conditioned and unconditioned spacesVertical doors providing access that comply with the fenestration requirements of Table R402.1.3 All access hatches smaller than 10 square feet

53) For horizontal pull-down access hatches in Climate Zones 0-4 to be exempt from surrounding surface insulation requirements, what is the maximum allowed net area of the framed opening? (R402.2.4)

10.5 square feet12.5 square feet13.5 square feet 15.5 square feet

54) What is required for the perimeter of exempt horizontal pull-down access hatches in Climate Zones 0-4? (R402.2.4)

It must be insulated to R-10It must be weatherstripped It must be gasketedIt must have an air leakage rate less than 0.3 cfm/sq ft

55) What minimum percentage of an exempt horizontal pull-down access hatch panel area must have an insulation R-value of R-13 or greater? (R402.2.4)

50 percent65 percent75 percent 90 percent

56) Which of the following is not considered a mass wall as defined in Section R402.2.5? (R402.2.5)

Brick veneer Concrete blockSolid timberAdobe

57) What heat capacity qualifies a wall as a mass wall according to Section R402.2.5? (R402.2.5)

Greater than or equal to 4 Btu/ft² × °FGreater than or equal to 5 Btu/ft² × °FGreater than or equal to 6 Btu/ft² × °F Greater than or equal to 8 Btu/ft² × °F

58) Which calculation method should be used for the U-factor of a steel-frame envelope assembly? (R402.2.6)

Parallel path calculation methodSeries path calculation methodSeries-parallel path calculation method Modified zone calculation method

59) According to Table R402.2.6, what is the cold-formed steel-frame equivalent R-value for a wood frame R-38 requirement in steel joist ceilings? (Table R402.2.6)

R-38 in 2 × 4 or 2 × 6 or 2 × 8R-49 in 2 × 4 or 2 × 6 or 2 × 8 or 2 × 10 R-38 + 5R-38 + 3

60) Which of the following is not an acceptable method for installing floor cavity insulation according to Section R402.2.7? (R402.2.7)

Installing insulation in partial contact with the underside of the subfloor decking Installing insulation in contact with the top side of sheathing separating the cavity and the unconditioned space belowInstalling a combination of cavity and continuous insulation where the cavity insulation is in contact with the top side of the continuous insulationInstalling insulation to maintain permanent contact with the underside of the subfloor decking

61) When floor framing cavity insulation is permitted to be in contact with the top side of sheathing separating the cavity and the unconditioned space below, what additional requirement must be met? (R402.2.7)

The framing members must be sealed with foamThe framing members must be air sealed The framing members must be wrapped with a vapor barrierThe framing members must be painted with vapor-retardant paint

62) Under what condition are basement walls associated with unconditioned basements exempt from insulation requirements? (R402.2.8)

When the basement has no windowsWhen the basement is less than 4 feet below gradeWhen there are no uninsulated ducts, domestic hot water, or hydronic heating surfaces exposed to the basement (among other requirements) When the basement is used solely for storage

63) When basement walls are insulated, how far down must the insulation extend? (R402.2.8.1)

To the frost lineTo 10 feet below grade or to the basement floor, whichever is less To 8 feet below grade or to the basement floor, whichever is lessTo the full height of the basement wall regardless of depth

64) For which slab-on-grade floors is insulation required according to Table R402.1.3? (R402.2.9)

Those with a floor surface less than 12 inches below grade Those with a floor surface less than 24 inches below gradeThose with a floor surface less than 36 inches below gradeAll slab-on-grade floors regardless of depth below grade

65) In which case is slab-edge insulation not required according to Section R402.2.9? (R402.2.9)

In Climate Zones 0-2When the slab is located in a garageIn jurisdictions designated by the code official as having a very heavy termite infestation When the slab perimeter is less than 50 linear feet

66) How must insulation extending away from the building in slab-on-grade floor installations be protected? (R402.2.9.1)

By pavement or by not less than 6 inches of soilBy pavement or by not less than 8 inches of soilBy pavement or by not less than 10 inches of soil By pavement or by not less than 12 inches of soil

67) At what angle may the top edge of insulation installed between the exterior wall and the edge of the interior slab be cut? (R402.2.9.1)

30 degrees45 degrees 60 degrees90 degrees

68) What is the exception to crawl space wall insulation requirements? (R402.2.10)

When the crawl space has no ventilationWhen the crawl space walls are less than 24 inches highWhen the crawl space is vented to the outdoors and the floor overhead is insulated When the crawl space has no access door

69) When crawl space wall insulation is installed, how far must it extend downward and then either vertically or horizontally? (R402.2.10.1)

From the floor to grade and then an additional 12 inchesFrom the floor to grade and then an additional 18 inchesFrom the floor to grade and then an additional 24 inches From the floor to grade and then an additional 36 inches

70) What covering is required for exposed earth in unvented crawl space foundations? (R402.2.10.1)

Class I vapor retarder Class II vapor retarderClass III vapor retarderNo vapor retarder is required

71) By how much must the edges of the vapor retarder extend up stem walls in unvented crawl spaces? (R402.2.10.1)

Not less than 4 inchesNot less than 6 inches Not less than 8 inchesNot less than 12 inches

72) Where insulation is not required on the horizontal portion of a foundation according to Section R402.2.11? (R402.2.11)

When it supports a masonry veneer When it supports a wood frame wallWhen it is less than 12 inches wideWhen it is in Climate Zones 0-3

73) What is the minimum ceiling insulation R-value for sunrooms and heated garages with thermal isolation in Climate Zone 5? (R402.2.12)

R-19R-24 R-30R-38

74) What is the minimum wall insulation R-value for sunrooms and heated garages with thermal isolation in all climate zones? (R402.2.12)

R-13 R-15R-19R-21

75) How must walls separating a sunroom or heated garage with thermal isolation from conditioned space comply? (R402.2.12)

With the minimum sunroom requirementsWith R-13 insulationWith the building thermal envelope requirements of the code With R-19 insulation minimum

ICC 2021 IECC Residential Energy Inspector/Plans Examiner Quiz 2

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