ICC REI Quiz 4

1) What is the maximum manufacturer's air leakage designation allowed for air handlers? (R403.3.4.1)

1 percent of design airflow rate2 percent of design airflow rate 3 percent of design airflow rate4 percent of design airflow rate

2) For a rough-in duct test where the air handler is installed, what is the maximum total leakage allowed? (R403.3.6)

3.0 cubic feet per minute per 100 square feet of conditioned floor area4.0 cubic feet per minute per 100 square feet of conditioned floor area 5.0 cubic feet per minute per 100 square feet of conditioned floor area6.0 cubic feet per minute per 100 square feet of conditioned floor area

3) For a postconstruction duct test, what is the maximum total leakage allowed? (R403.3.6)

3.0 cubic feet per minute per 100 square feet of conditioned floor area4.0 cubic feet per minute per 100 square feet of conditioned floor area 6.0 cubic feet per minute per 100 square feet of conditioned floor area8.0 cubic feet per minute per 100 square feet of conditioned floor area

4) For ducts and air handlers located entirely within the building thermal envelope, what is the maximum total leakage allowed? (R403.3.6)

4.0 cubic feet per minute per 100 square feet of conditioned floor area6.0 cubic feet per minute per 100 square feet of conditioned floor area8.0 cubic feet per minute per 100 square feet of conditioned floor area No testing required

5) What restriction applies to building framing cavities regarding duct systems? (R403.3.7)

They shall not be used as ducts or plenums They must be sealed with mastic when used as ductsThey may be used as ducts if sealed properlyThey may be used as return air plenums only

6) What minimum R-value is required for mechanical system piping carrying fluids greater than 105°F or less than 55°F? (R403.4)

R-1R-2R-3 R-4

7) What is prohibited for protecting piping insulation exposed to weather? (R403.4.1)

Flexible wrapsAluminum jacketingAdhesive tape UV-resistant paint

8) What is required for controls of circulating hot water system pumps? (R403.5.1.1)

They must be manually operatedThey must automatically turn off when there is no demand for hot water They must operate continuouslyThey must operate on a timer schedule only

9) What is the maximum temperature allowed for water entering cold water piping from a hot water recirculation system? (R403.5.1.1)

100°F104°F 110°F120°F

10) For which pipes is hot water pipe insulation with an R-value of not less than R-3 NOT required? (R403.5.2)

Piping serving more than one dwelling unitPiping from the water heater to a distribution manifoldPiping smaller than 3/4 inch in nominal diameter located inside conditioned space Piping located under a floor slab

11) In which climate zones are dwelling units required to be provided with a heat or energy recovery ventilation system? (R403.6.1)

Climate Zones 5 and 6Climate Zones 6 and 7Climate Zones 7 and 8 Climate Zones 8 and 9

12) What is the minimum sensible heat recovery efficiency required for heat recovery or energy recovery ventilation systems in Climate Zones 7 and 8? (R403.6.1)

55 percent60 percent65 percent 70 percent

13) What minimum fan efficacy is required for HRV, ERV, or balanced ventilation systems? (Table R403.6.2)

1.0 cfm/watt1.2 cfm/watt 2.8 cfm/watt3.5 cfm/watt

14) What minimum fan efficacy is required for range hood ventilation systems? (Table R403.6.2)

1.2 cfm/watt2.8 cfm/watt 3.5 cfm/watt3.8 cfm/watt

15) What minimum fan efficacy is required for in-line supply or exhaust fans? (Table R403.6.2)

2.8 cfm/watt3.5 cfm/watt3.8 cfm/watt 4.0 cfm/watt

16) Which of the following is exempt from mechanical ventilation testing requirements? (R403.6.3)

Any system with less than 100 CFM capacityKitchen range hoods ducted to outside with 6-inch or larger duct and not more than one 90-degree elbow Bathroom exhaust fansEnergy recovery ventilators

17) What standard should be used for sizing heating and cooling equipment? (R403.7)

ACCA Manual DACCA Manual JACCA Manual S ACCA Manual N

18) What systems are required to comply with Sections C403 and C404 of the International Energy Conservation Code—Commercial Provisions? (R403.8)

Systems serving single dwelling unitsSystems serving multiple dwelling units Systems serving accessory structuresSystems serving additions to existing structures

19) At what pavement temperature must snow and ice-melting systems automatically shut off? (R403.9)

Greater than 40°FGreater than 45°FGreater than 50°F Greater than 55°F

20) What control feature is required for heaters for pools and spas? (R403.10.1)

A remote control systemA WiFi-enabled controllerAn on-off switch that is an integral part of the heater or external to and within 3 feet of the heater A programmable thermostat

21) What is NOT allowed for gas-fired pool or spa heaters? (R403.10.1)

Continuously burning ignition pilots Electronic ignitionExternal on-off switchesThermostat controls

22) What is required for outdoor heated pools and outdoor permanent spas? (R403.10.3)

A solar heating systemA vapor-retardant cover or other approved vapor-retardant means An automatic timerA heat pump water heater

23) Under what condition are covers not required for outdoor heated pools? (R403.10.3)

When the pool is used seasonallyWhen more than 50% of heating is from a heat pumpWhen more than 75% of energy for heating is from a heat pump or on-site renewable energy system When the pool temperature is maintained below 80°F

24) What standard controls the energy consumption of electric-powered portable spas? (R403.11)

APSP 13APSP 14 APSP 15APSP 16

25) What standard controls the energy consumption of residential swimming pools and permanent residential spas? (R403.12)

APSP 13APSP 14APSP 15 APSP 16

26) What type of lighting sources must be used in permanently installed lighting fixtures (excluding kitchen appliance lighting fixtures)? (R404.1)

Energy Star rated onlyCFL onlyLED onlyHigh-efficacy lighting sources

27) Which of the following is NOT exempt from the exterior lighting requirements for residential buildings per Section C405.5? (R404.1.1)

Detached one- and two-family dwellingsTownhousesApartments Solar-powered lamps not connected to electrical service

28) What requirement applies to fuel gas lighting systems? (R404.1.2)

They must use electronic ignitionThey must not have continuously burning pilot lights They must be controlled by motion sensorsThey are prohibited in residential buildings

29) Which permanently installed lighting fixtures must be controlled with either a dimmer, an occupant sensor, or other built-in control? (R404.2)

All lighting fixturesAll lighting fixtures except those in bathrooms, hallways, exterior locations, and lighting for safety or security Only bedroom and living room lighting fixturesOnly kitchen and dining room lighting fixtures

30) What control requirement applies when the total permanently installed exterior lighting power is greater than 30 watts? (R404.3)

Lighting shall be controlled by a motion sensor onlyLighting shall be controlled by a manual on and off switch which permits automatic shut-off actions Lighting shall be controlled by timers onlyLighting shall be controlled by photocells only

31) What is the maximum override time allowed for exterior lighting controls before returning to automatic operation? (R404.3)

4 hours12 hours24 hours 48 hours

32) What component in Table R402.4.1.1 requires both the junction of the top plate and top of exterior walls to be sealed and knee walls to be sealed? (Table R402.4.1.1)

Ceiling/atticWalls Rim joistsShafts, penetrations

33) For air barrier criteria at recessed lighting, what code section is referenced for air sealing requirements? (Table R402.4.1.1)

R402.4.3R402.4.4R402.4.5 R402.4.6

34) What are Class I vapor retarders prohibited from being used as on below-grade walls? (Table R402.4.1.1)

InsulationAir barriers Weather barriersWater-resistive barriers

35) What is the installation requirement for batts in narrow cavities? (Table R402.4.1.1)

They must be spray foam onlyThey must be cut to fit or cavities filled with insulation that readily conforms to the available space They must have a minimum R-value of R-15They must be installed by a certified professional

36) What is the minimum depth of insulation covering recessed light fixtures installed in the building thermal envelope? (Table R402.4.1.1)

They must be completely coveredThey must be buried or surrounded with insulation They must have at least 3 inches of insulation above themThey must have at least 6 inches of insulation above them

37) During building air leakage testing, what should be done with exterior or interior terminations for continuous ventilation systems? (R402.4.1.2)

They should be openThey should be closedThey should be sealed They should be removed

38) What is the standard pressure at which building air leakage testing must be reported? (R402.4.1.2)

0.1 inch w.g. (25 Pascals)0.2 inch w.g. (50 Pascals) 0.3 inch w.g. (75 Pascals)0.4 inch w.g. (100 Pascals)

39) In Climate Zones 0, 1, and 2, what is the maximum air leakage rate allowed when complying with Section R401.2.1? (R402.4.1.3)

3.0 air changes per hour4.0 air changes per hour5.0 air changes per hour 7.0 air changes per hour

40) Which of the following is an exception to the requirement that rooms containing fuel-burning appliances be located outside the building thermal envelope or enclosed in an isolated room? (R402.4.4)

Direct vent appliances with both intake and exhaust pipes installed continuous to the outside Natural draft water heatersAppliances with electronic ignitionAppliances located in garages

41) For ductwork to be considered in conditioned space when in ventilated attic spaces, what is the maximum allowed duct leakage? (R403.3.2)

1.0 cubic feet per minute per 100 square feet of conditioned floor area1.5 cubic feet per minute per 100 square feet of conditioned floor area 2.0 cubic feet per minute per 100 square feet of conditioned floor area3.0 cubic feet per minute per 100 square feet of conditioned floor area

42) What pressure differential is used when testing ducts for air leakage? (R403.3.5)

0.05 inch w.g. (12.5 Pa)0.1 inch w.g. (25 Pa) 0.2 inch w.g. (50 Pa)0.3 inch w.g. (75 Pa)

43) What is the minimum R-value required for the combustion air duct insulation where it passes through conditioned space? (R402.4.4)

R-6R-8 R-13R-19

44) What is the minimum static pressure at which fan efficacy for fully ducted HRV, ERC, balanced, and in-line fans must be determined? (R403.6.2)

0.1 inch w.c.0.2 inch w.c. 0.25 inch w.c.0.3 inch w.c.

45) What is the minimum static pressure at which fan efficacy for ducted range hoods, bathroom, and utility room fans must be determined? (R403.6.2)

0.05 inch w.c.0.1 inch w.c. 0.15 inch w.c.0.2 inch w.c.

46) What is the minimum efficacy requirement for exhaust fans with an airflow rate of 90 CFM or greater? (Table R403.6.2)

2.8 cfm/watt3.0 cfm/watt3.5 cfm/watt 3.8 cfm/watt

47) What is the minimum efficacy requirement for exhaust fans with an airflow rate less than 90 CFM? (Table R403.6.2)

1.4 cfm/watt2.8 cfm/watt 3.5 cfm/watt3.8 cfm/watt

48) What code or standard is referenced for calculation of building loads for equipment sizing? (R403.7)

ACCA Manual DACCA Manual J ACCA Manual SASHRAE 90.1

49) At what outdoor temperature must snow and ice-melting system controls allow shutoff? (R403.9)

Greater than 32°FGreater than 35°FGreater than 40°F Greater than 45°F

50) How should recessed luminaires installed in the building thermal envelope be sealed? (R402.4.5)

With spray foam insulation onlyWith a gasket or caulked between the housing and the interior wall or ceiling covering With fiberglass insulation onlyWith specialized electrical tape

51) Which of the following air barrier criteria does NOT apply to windows, skylights, and doors according to Table R402.4.1.1? (Table R402.4.1.1)

The space between window framing and jambs must be sealedThe space between skylights and framing must be sealedWindows must be Energy Star rated The space between door jambs and framing must be sealed

52) What does the air barrier criteria for general requirements specify? (Table R402.4.1.1)

A continuous air barrier shall be installed in the attic onlyA continuous air barrier shall be installed in the building envelope A continuous air barrier shall be installed in the crawl space onlyA continuous air barrier shall be installed between interior walls only

53) What is the insulation installation criteria for air-permeable insulation? (Table R402.4.1.1)

It shall not be used as a sealing material It shall be installed only in atticsIt must have an R-value of at least R-19It must be at least 3.5 inches thick

54) For the air barrier criteria at electrical/phone boxes on exterior walls, what options are provided? (Table R402.4.1.1)

They must be sealed with spray foamThe air barrier shall be installed behind electrical and communication boxes or air-sealed boxes shall be installed They must be eliminated from exterior wallsThey must be relocated to interior walls

55) According to the air barrier criteria, what must be done with HVAC register boots that penetrate the building thermal envelope? (Table R402.4.1.1)

They must be insulatedThey must be sealed to the subfloor, wall covering, or ceiling penetrated by the boot They must be eliminated in favor of high wall registersThey must be made of a specific material

56) How should concealed fire sprinklers be sealed according to Table R402.4.1.1? (Table R402.4.1.1)

With expanding foamWith intumescent caulkOnly in a manner recommended by the manufacturer With silicone caulk

57) What is prohibited for sealing voids between fire sprinkler cover plates and walls or ceilings? (Table R402.4.1.1)

Silicone caulkCaulking or other adhesive sealants Weather strippingFire-rated foam

58) What requirements apply to floors with cantilevered floors and floors above garages for air barrier criteria? (Table R402.4.1.1)

They must be insulated with at least R-30The air barrier shall be installed at any exposed edge of insulation They must be insulated with spray foam onlyThey must include a thermal break

59) What is the insulation installation criteria for floor framing cavity insulation? (Table R402.4.1.1)

It shall maintain permanent contact with the underside of subfloor decking It shall be spray foam insulation onlyIt shall have a minimum R-value of R-19It shall be installed with a vapor barrier on both sides

60) What is the minimum capability required for calculation software tools used for energy code compliance regarding the standard reference design? (R405.5.1)

Allow user to manually input building component characteristicsComputer generation of the standard reference design using only the input for the proposed design Allow comparison between multiple proposed designsGeneration of unlimited design alternatives

61) According to the IECC, performance analysis tools must be capable of calculating the annual energy consumption of which of the following? (R405.5.1)

All building elements regardless of differences between designsOnly the mechanical systems of the buildingOnly the building thermal envelope componentsAll building elements that differ between the standard reference design and the proposed design

62) When calculating whole-building sizing for heating and cooling equipment in the standard reference design, compliance with which section is required? (R405.5.1)

Section R403.8Section R403.7 Section R403.6Section R403.9

63) What must be included in the code official inspection checklist required by calculation software tools? (R405.5.1)

All building dimensions and orientationProposed design component characteristics with performance ratings Construction schedule and sequenceBuilding permit number and date

64) When calculations require input values not specified by Sections R402, R403, R404, and R405, where should those input values be taken from? (R405.5.3)

The building designer's specificationsThe manufacturer's dataAn approved source The standard reference design

65) What is required for compliance based on the Energy Rating Index (ERI)? (R406.2)

Only meeting the requirements of Table R406.2Only achieving the maximum ERI of Table R406.5Meeting the maximum ERI of Table R406.5 and requirements of Table R406.2 Meeting the maximum ERI of Table R406.5 or requirements of Table R406.2

66) When on-site renewable energy is not included for ERI analysis compliance, what is the maximum building thermal envelope UA allowed compared to the prescriptive UA? (R406.3.1)

Equal to the prescriptive UALess than or equal to 90% of the prescriptive UALess than or equal to 115% of the prescriptive UA Less than or equal to 85% of the prescriptive UA

67) What is the maximum area-weighted fenestration SHGC permitted in Climate Zones 0 through 3 when on-site renewables are not included in the ERI analysis? (R406.3.1)

0.250.30 0.350.40

68) When on-site renewable energy is included for compliance using the ERI analysis, what levels of efficiency must the building thermal envelope meet? (R406.3.2)

Greater than or equal to 120% of levels in Table R402.1.2 or Table R402.1.4Greater than or equal to 90% of levels in Table R402.1.2 or Table R402.1.4

69) For compliance purposes, what is the maximum percentage of total energy use reduction that can be associated with on-site renewable energy in the rated design? (R406.4)

10 percent15 percent5 percent 20 percent

70) What is the maximum Energy Rating Index (ERI) value allowed for compliance in Climate Zone 3? (R406.5)

5251 5455

71) Who must verify compliance with Section R406 as outlined in Sections R406.5 and R406.7? (R406.6)

The builderThe code official onlyAn approved third party The homeowner

72) Which standard must software tools used for determining ERI comply with? (R406.7.1)

RESNET/ICC 301 ANSI/ASHRAE 90.1ANSI/ASHRAE 62.2RESNET/ICC 380

73) What must be included in the compliance report submitted with the application for a building permit? (R406.7.2.1)

Detailed construction timelineDeclaration of ERI on title page and building plans List of all subcontractorsBuilding material costs

74) When a site-specific report is not generated for the ERI compliance report, on what basis shall the proposed design be based? (R406.7.2.1)

Average orientation and configurationBest-case orientation and configurationWorst-case orientation and configuration Default orientation to true north

75) What documentation is required when on-site renewable energy is included in the calculation of an ERI? (R406.7.3)

Manufacturer specifications of renewable energy systemSubstantiation that RECs are owned by the homeowner or equivalent contractual arrangement Utility bills proving energy savingsThird-party certification of installation quality

ICC 2021 IECC Residential Energy Inspector/Plans Examiner Quiz 4

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