2018 commercial I.E.C.C
Which of the following HVAC systems must be divided into separate isolation areas?
*Those serving a zone of 35,000 square foot in floor area *Those serving a 20,000 square foot zone spanning two floors that are occupied non simultaneously. C403.2.1
A commercial building with a low-sloped roof is proposed for the Las Vegas are. Which portions of the roof are exempt from the solar reflectance and thermal emittance requirements?
*skylight area *Portions of the roof that are ballasted with stone at over 171lbs/square foot *Areas of the roof shaded by adjacent buildings during summer solstice C402.3
What is a method of complying with the air barrier requirements and ensuring the rim joist does not provide a break in the thermal envelope?
*when the rim joist itself is glued, caulked or gasketed to subfloors and top plates. *cement board having a thickness of not less than 1/2 inch. C402.5.1.2.1
The south side of a new commercial building in Anchorage, Alaska has overhangs measuring six feet form the vertical glazing surface (wall) to the outmost point of the overhang. Below the overhang is a bank of fixed, plate glass windows. The distance from the bottom of the windows to the underside of the overhang is 8 feet. What is the maximum U-factor of the fenestration?
.50 C402.4.3, Table 402.4
The maximum permitted air infiltration rate for store front glazing is __________ cfm/ft.
0.06 C402.5.2
when applying the prescriptive building envelope provisions for commercial buildings, what is the maximum permitted U-factor of a side-hinged swinging opaque door for a building located in climate zone 3
0.61 C402.1.4
what is the area of the top height daylight zone under a 4 foot by 8 foot skylight in a warehouse with 20 foot ceiling? The highest obstruction in the warehouse is 10 foot high, and there are no buildings or geological formations that block sunlight.
1,152 square foot C405.2.3.3
What is the maximum average power usage (per hour) of an ice-cream temperature, self-contained, vertical solid door freezer with a case volume of 80 square foot. as measured in accordance with AHRI 1200, appendix C?
1.3 Kw Table C403.10.1 (2)
In a hydronic system, a two-position valve is required on each hydronic heat pump unless the total pump system power is a maximum of ___________ horsepower.
10 C403.4.3.3.3.
Economizers are never required in individual fan systems not served by chilled water for buildings located in which of the following climate zones?
1A & 1B C403.5 exception #1
How many different climate zones does Kansas have?
2 C.301.1
Gravity (nonmotorized) leakage-rated dampers may be used at outdoor air intakes and exhaust openings in lieu of motorized dampers in buildings a maximum of stories in height above grade in Climate Zones 4-8
2 stories C403.7.7 exception #1
What is the value of D in equation 4-2 for a building in climate zone 7 with the following specifications? *4,000 square feet. of exterior wall area *2,000 square feet of windows *window assembly U-factors of .30 *opaque wall assembly U-factor of .045
204 C402.1.5
The maximum length of a 3/8-inch heated water supply pipe between the source of heated water and termination of fixture supply pipe for a public lavatory faucet is _________
3 feet C404.5.1
Duct system designed to operate at static pressures in excess of 3w.g. must be leak-tested in accordance with the SMACNA HVAC air duct leakage test manual with a maximum air leakage rate of_________
4.0 C403.11.2.3
A 15 foot track light is proposed for a building. twelve 40-watt fixtures are proposed for the track. Which wattage should be counted toward the interior lighting power of the building?
480 watts C405.3.1
when used to control both heating and cooling, zone thermostatic controls shall provide a dead band of at least ____________
5 degrees C403.4.1.2
The automatic controls required for a snow-melting system shall be capable of shutting off the system when the pavement temperature is above__________ and no precipitation is falling.
50 degrees F. C403.12.2
In buildings having other than Group R occupancy, economizers are not required on individual direct expansion cooling coil units having a supply capacity less than ________ Btu/h.
54,000 C403.5
Thermostatic set back controls for the HVAC system shall have the capability to set back or temporarily operate the system to maintain zone temperatures down to _________ or up to _________.
55 degrees F, 85 degrees F C403.4.2.1
Calhoun county, Illinois, is located in which climate zone?
5A Table C301.1
In preparation of heating and cooling load calculations, what is the maximum interior design temperature for heating?
72 Degrees F C302.1
The minimum required efficiency of a gas-fired steam boiler having an input rating less than 300,000 Btu is ____________
80% AFUE Table C.403.3.2 (5)
When evaluating equipment compliance for a complex HVAC system, what is the minimum efficiency of a warm-air gas-fired unit heater at maximum capacity?
80% ec C403.3.2 (4)
A 50,000 square foot retail store is proposed for a new shopping center. It includes a 5,000 square foot enclosed office, a display area of 20,000 square foot devoted to general merchandise, with the other 25,000 square foot devoted to sports goods. Both with be provided additional display lighting. what maximum wattage?
80,800 C405.2.3.2 & Table C405.3.2 (2)
operating and maintenance manuals, along with all required reports and drawings, shall be provided to all building owner a maximum of ___________ days after the date of receipt of the certificate of occupancy.
90 C408.2.5
What is the dimension of the daylight zone in a large, open space next to a 4 foot by 4 foot window that has a 6 foot head height?
A daylight zone does now exist for this window C405.2.3.2. #2
Which definition describes a computer room, according to the IECC?
A room which houses equipment for the proccessing and storage of electronic data and electronic data equipment power density of less than 20 watts per square foot. or a connected design electronic data equipment load of less than 10,000 W C202- computer room
which of the following types of alterations to commercial buildings must comply with the IECC?
Alterations to the building envelope, mechanical, service water-heating distribution or illumination system C503
A new open-circuit hydronic water loop heat pump system is proposed in climate zone 7. The cooling tower is used directly in the heat pump loop which provision applies?
An automatic valve must be installed to bypass heat pump water flow around the open-circuit cooling tower. C403.4.3.3.2
The term "ready access" is used in the IECC in relation to controls and switches. which of the following control locations would most likely be considered ready access by the plans examiner.
An exposed wall-switch near the equipment R202
Gravity damper for both outdoor air supply and exhaust ducts shall be permitted in all of the following except _______________
Buildings greater than two stories in climate zone 4-8 C403.7.7
According to Ch.4, simple HVAC systems and equipment that meet the minimum equipment requirements listed in Table C403.2.3 (1-9) shall be verified___________.
By an approved certification program, or if no program exist, with data supplied by the manufacturer. C403.3.2
A 10,000 square- foot additon is being constructed on a bank. which is/are valid compliance paths for the projects?
C401.2 #3
which of the following building envelope features may be traded-off using an IECC C407, total building performance, approach
C402.2.4, Floor insulation over outdoor air or unconditioned space. C401.2 #3
What is the standard for measuring the efficiency and pressure loss of drain-water heat-recovery units?
CSA B55.1 C404.8
which of the following assemblies is not considered part of the building thermal envelope?
Ceiling assembly between house and unvented attic, floor over a basement containing uninsulated ducts, Building thermal envelope & conditioned space. C202
According to the prescriptive insulation requirements of Ch.4, an above-grade wood-framed wall in a commercial office buildings in climate zone7, with a window area of 10% of the above-grade wall area, shall have a minimum required R-value of ________________
Either R-20+R-3.8ci or R-13+R-7.5ci C402.1.3
A new warehouse in sparks, Nevada will be constructed using concrete walls. Which of the following are listed as criteria for the walls to be considered "mass walls".
Either have a heat capacity exceeding 7 Btu/ square feet or be constructed of concrete masonry units. C402.2.2.
What information is required on the construction documents of a commercial building?
Fan motor HP and controls, location of daylight zones, prescription of equipment and controls. C103.2
which of the listed occupancies are considered residential buildings by the IECC if no more than three stories above grade plane?
Group R-3, group R-4, Group R-2 R-101.2 & 202
Design loads for simple HVAC heating and cooling systems are to be determined.
In accordance with the ANSI/ASHRAE/ACCA standard 183 or an approved equivalent computation procedure. C403.1.1
Which cooling systems require air or water economizers.
Individual fan system with cooling capacity greater than or equal to (270,000 Btu/h or 54,000 Btu/h in buildings having other than a group R occupancy. C403.5
Which of the following methods and materials are approved for duct sealant for low-pressure duct systems?
Mastics C403.11.2.1
what standard is used to determine U-factors for windows, doors and skylights?
NFRC 100 C303.1.3
A lobby of a hotel located in climate zone 2 will use a revolving door for the primary entrance into the space. The lobby is 5,000 square foot. An adjacent swinging door required by the IBC also serves the lobby. Which of the doors is required to have a vestibule?
Neither door, as the building is located in Climate Zone 2 C402.5.7, exception 1
A metal warehouse building is proposed in Climate Zone 2. The building will use a metal Purlin system with an R-5 thermal block. R-30 insulation is proposed to be installed between the roof framing members. Does this installation comply with prescriptive building envelope requirements of the IECC?
No, a minimum of R-19+R-11 LS insulation is requred for the roof insulation. Table 402.1.3
A built-up mechanical system using a chiller and boiler will serve the space conditioning needs of a commercial building. The designer has proposed a water economizer that can provide at least 80% of the expected system cooling capacity at 50 degrees F dry bulb 45 degrees F wet bulb and below. Will this economizer meet the minimum requirements?
No, the economizer must be able to provide 100% of the expected cooling load of the building. C403.5.4.1
A commercial building located in Clay county, Minnesota, will have a gross above-grade wall area of 15,000 square feet. the proposed building will have a vertical fenestration area of 5,750 square feet. Are the prescriptive fenestration provisions of section C402.4 applicable to this building?
No, the fenestration area exceeds 30% of the gross above-grade wall area. Table C301.1 & 402.4.1.1
A warehouse building located in Helena, Montana will utilize a heated slab-on-grade floor. R-10 insulation will be installed starting from the bottom of the slab down for a distance of 18 inches. Does this installation comply with C402.
No, the insulation must be at least R-15 installed from the top of the slab downward for 36 inches Table C301.1 and C402.4.1.1.
A 1940's ere five-story building with hip roof is in need of roof repair. new insulation was installed in 2010 under the roof deck. The project will involve removing and replacing the existing roofing, without exposing the insulation. Which of the sections of the IECC apply?
None, it is Exempt C503.1, exception #4
A hotel is proposed for Marathon, Florida with a low-sloped roof. what are the requirements for a solar reflectance of the roof over the portico?
None, the roof is not over a conditioned space. Table 402.3
A heated-water circulation system is proposed for a new family restaurant. Which factors determine the maximum allowable pipe length permissible in the circulation loop?
None. The pipe length of the circulation loop is not limited. C404.6
A cooling duct is located in an unconditioned space. The design temperature of the air inside the duct system is 55 degrees F, and the design temperature of the space where the duct is located is 68 degrees F. What minimum duct insulation R-value is required for this duct?
None. The temperature difference is 15 degrees or less; therefore, the duct is exempt from duct insulation. C403.11.1 exception 2
which of the following components is considered automatic?
Occupancy sensing device operating a building lighting system -automatic- C202
A 28,000 square foot enclosed parking garage with no heating or mechanical cooling system supplies fresh air through a ventilation system with a total name plate power of 28HP. Are modulation air flow rates as specified in C403.2.6.2 required?
Only if the exhaust capacity is 22,500 cfm or greater. C403.7.2
A proposed manufacturing building located in climate Zone 4 will use a CMU wall system for 60% of the building with the remaing 40% of the building constructed using metal framing. What is the minimum required R-value for insulation for the metal wall system given the percent of CMU that is proposed for the building
R-13 R-7.5ci Table 402.1.3
when using the prescriptive insulation requirements for the building envelope, what is the minimum required R-value of a metal-framed above-grade wall of a commercial building located in climate zone 6?
R-13+R-7.5ci C402.1.3
Using the prescriptive thermal envelope requirements of Ch. 4, which of the following insulation installations will meet the requirements for a metal roof system's on a warehouse located in climate zone 1?
R-20 ci installed entirely above the roof deck Table C402.1.3
In the prescriptive evaluation of the opaque thermal envelope requirements, what is the required minimum R-value for a framed floor system over unconditioned space in a commercial building located in climate zone 5?
R-30 Table 402.1.3
In general, all supply and return air ducts located in unconditioned spaces must be insulated to a minimum of ____________ insulation.
R-6 C403.11.1
A group R-1 hotel, is proposed for a climate Zone 3 location. The building will utilize mass walls for the exterior wall system. What is the minimum required R-value requirements for the wall system using the prescriptive thermal envelope requirements of the IECC?
R-9.5ci C402.1.3
What is the specified intent of the IECC, as stated in the code?
Regulate the design and construction of buildings for the effective use and conservation of energy over the useful life of each building. C101.3
A wall-mounted canopy kitchen hood has an airflow rate of 4,000 cfm and will be installed over medium-duty equipment. which of the following statements is correct?
Replacement air introduced directly into the hood cavity cannot exceed 400cfm. C403.7.5
which of the following information should be included on the construction documents to demonstrate compliance with the IECC
S.H.G.C., Glazing U-factor C103.2
Which of the following components is not regulated by the IECC for walk-in coolers?
Specific heat capacity of shelving materials. C403.10.1 & C403.10.2
According to the prescriptive building envelope provisions of Ch4, what is the minimum required R-value of an exterior wall of a metal buildings with a window and glazed door area of 45% for an office building located in climate zone 2?
The building shall comply with the envelope provisions of ANSI/ASHRAE/IESNA 90.1, the total building performance path, or the component performance alternative. C402.1, C402.1.5
An out of commission fire station is being converted t a restaurant, with new space conditioning, service hot water supply and lighting. the envelope will remain the same. what provisions of the IECC apply?
The project must comply with sections C403, C404, C405 C403.4-6
how shall energy code compliance be determined for a tree-story building where the first story is in retail space and the second and third stories are multi-family?
The retail space must comply with the commercial provisions of the IECC, and the multi-family area must comply with the residential provisions of the IECC. C101.4.1/R101.4.1, 202
Gas-fired boilers are proposed for heating water in a new building. which of the following combinations is compliant?
Three 90%ep, single-input, 400,000 Btu/h gas-fired boilers. C404.2.1 C403.3.4 and Table C403.3.2 (5)
how is thermal transmittance identified?
U-factor (thermal transmittance) -Btu/h -Square foot C202
Which of the following locations is within the tropical climate zone?
U.S. virgin Islands. C301.4
site built windows are not automatically rated by the NFRC, How does one assign a U-factor to them?
Using the default U-factor from Table C303.1.3 C303.1.3
Cargo doors and loading dock doors shall be equipped with_________ to restrict infiltration when vehicles are parked in the doorway.
Weatherseals C402.5.6
The provisions for heating vestibules are as follows:
When heating is provided, controls must be provided that automatically turn off the system when out door temperature is greater than 45 degrees. C403.4.1.4.
When must an alteration on a commercial historic building comply with the provisions of the IECC?
When no report has been submitted stating that compliance with provisions would threaten, degrade or deform the historic form of the building C501.6 R501.6
A proposed alteration will include replacing 75% of the existing luminaries in an office space. The alteration will not increase the installed interior lighting power. Will this alteration need to comply with IECC.
Yes, 10% or more of the luminaries will be replaced. C503.6
A gravity damper is proposed for an exhaust duct with a 250cfm airflow in a four-story building located in climate zone 4. Does this comply with the IECC?
Yes, gravity damper are permitted for exhaust airflows of 300cfm or less. C403.7.7.
A conditioned warehouse building located in climate 7 will incorporate 4,000 square foot of opaque roll-up door. The above-grade wall area is 10,000 square foot and will contain 1,000 square foot of vertical fenestration in addition to the roll-up doors. can the building use C402 to comply with the IECC
Yes, there is no limit to the amount of opaque roll-up door area is C402 C402.1.3
A rigid, opaque weather-resistive covering is applied over insulation on the exterior of a basement wall. The protective covering covers the exposed insulation and extends 12-inches below grade. are code requirements met?
Yes. the protective covering must only extend 6-inches below grade. C303.2.1
Which chapters of the IECC apply to an 18,000 Square foot mixed-use building when the first floor is retail and each of the upper three floors have two condominiums for a total of six residential units?
all commercial chapters C101.4.1
What type of construction or work is subject to inspection by the code official?
any work for which a permit is required C105.1
Which of the following statements regarding a change in commercial occupancy is accurate?
changes in occupancy that results in an increase in demand for either fossil fuel or electrical energy must comply with commercial chapters 1 through 4 changes in uses shall comply with Table C405.4.2 (1) and C405.4 for installed lighting wattage C505.1
A 25,000 square foot warehouse is currently conditioned for freeze protection only and uses less than 3.4 BTU/h square foot it is being converted to a fully conditioned space. which portion of the IECC apply?
chapters 1 through 4. C503.2
A package heating and cooling systems will be installed on a retail space in a strip shopping center. Heating & cooling loads where calculated to size. The cooling load was calculated at 75,000 Btu/h. The heating load was calculated at 45,000 Btu/h. Which system meets the equipment and system sizing requirements of the IECC based on the output given?
cooling 75,000 Btu/h; heating 60,000 Btu C403.3.1
The total estimated annual cost for purchased energy for the building functions regulated by the IECC, including applicable demand charges, is deemed to be _____________
energy cost C202
A building addition is considered an extension or increase in the conditioned_____________ of a building
floor area or height. C202
which of the following inspections is required by the IECC for a new residential buildings?
footing and foundations R105.2
Which of the following occupancies is considered a commercial building under the IECC?
four-story R-2 building R202
A 350 square foot building that will house electronic equipment is to be built in Clare County, Michigan. In order to be exempt from the building thermal envelope provisions of the code, what must be true regarding the average wall and roof U-factor?
less than .120 in climate zone 6-8 C402.1.2 and Table C301.1
An alteration to an existing 50,000 square feet commercial building will include a new cooking system with an output capacity of 165,000 BTU/h . This alteration will also include a new lighting system. which energy-using features must comply with the IECC?
lighting and mechanical systems only C503.1
A 10,000 square foot commercial building will include no space conditioning equipment. the building will include a lighting system. Which portions of the energy using features must comply with the IECC?
lighting system only C402.1.1
Card key controls in Hotel and motel rooms are intended to __________
limit HVAC operation in unoccupied rooms C403.7.6
The reconstruction and renewal of any part of an existing roof for the purpose of maintenance is the definition of________________
roof repair. C202
which of the listed occupancies are considered commercial occupancies under the IECC?
single-story Group R-1 C101.2 & 202
Which of the following conditions in a residential project may exempt it from the provisions of the IECC?
the building is in the national register of historic places. R501.6
which of the following is true concerning a conflict between a referenced standard and a provisions of the IECC?
the provisions of the code shall take precedence over the referenced standard where there is a conflict. C107.1.1, R107.1.1
Which of the listed commercial buildings must comply with the building thermal envelope provisions of the IECC?
warehouse with a peak design rate of energy usage of 4.3 Btu/h per square foot C402.1.1
A variable air volume system (vav) is required ___________
when a complex mechanical system serves multiple zone. C403.6.1
The entrance to a 10,000 square foot building located in climate zone 7 will be via doors opening directly into a 2,500 square foot space. A swinging door with a self- closing device will be installed. Does the door comply with the IECC vestibule requirements?
yes, the entrance door is located in a space less than 3,000 square foot. C402.5.7 exception #4
