I85PREP
⌘ K
CID study materials
CID study resources

CID practice questions

One question at a time. Build your CID understanding.

First 50 of 200 questions. Each one lists the choices, the correct answer, and an explanation. The checker at the top of this page saves progress in this browser when it is available.

Continue in the practice tool above to load more questions, 50 at a time.

Question 1Space Planning and Programming

In space planning, what does the term 'net assignable area' refer to?

  1. The total floor area measured to the outside face of exterior walls
  2. The area of spaces directly assigned to occupants for their specific functions Correct answer.
  3. The gross building area minus the structural column footprint
  4. The area occupied by corridors, lobbies, and other shared circulation

Explanation

Net assignable area counts only the usable area of rooms and spaces that serve the occupant's program, measured to the inside faces of enclosing walls. It excludes circulation, mechanical, and structural areas, which are classified as non-assignable. The ratio of assignable to gross area is a key efficiency metric in programming.

Question 2Space Planning and Programming

A client provides a program listing 40 enclosed offices at 120 net square feet each. What net area do the offices represent before any circulation or wall allowance?

  1. 1,200 sf
  2. 480 sf
  3. 4,800 sf Correct answer.
  4. 12,000 sf

Explanation

Multiply the count by the per-space area: 40 offices times 120 sf equals 4,800 net square feet. This net figure is the starting point before adding circulation, partitions, and support space to reach gross area. Confusing net with gross is a common programming error.

Question 3Space Planning and Programming

Which document establishes the total building area target and the space-by-space area allocations that guide the design team?

  1. The program of requirements Correct answer.
  2. The certificate of occupancy
  3. The construction schedule
  4. The punch list

Explanation

The program of requirements, sometimes called the architectural program, defines the project's space needs, area targets, and functional relationships. It is the primary planning instrument handed to the design team. Schedules, punch lists, and occupancy certificates occur later or serve other purposes.

Question 4Space Planning and Programming

What is the primary purpose of a bubble diagram in the programming phase?

  1. To calculate structural load paths
  2. To document construction cost estimates
  3. To specify finish materials for each room
  4. To show adjacency and functional relationships between spaces Correct answer.

Explanation

Bubble diagrams represent spaces as simple shapes and connect them to show required adjacencies and circulation relationships. They are a conceptual tool that precedes scaled blocking and layout. They do not address cost, finishes, or structure.

Question 5Space Planning and Programming

Which efficiency ratio compares net assignable area to gross building area?

  1. Occupancy load factor
  2. Net-to-gross ratio Correct answer.
  3. Floor area ratio
  4. Parking ratio

Explanation

The net-to-gross ratio expresses assignable area as a percentage of total gross area and indicates how efficiently the building serves its program. Typical values vary by building type, with offices often higher than hospitals. Floor area ratio, occupancy load, and parking ratios measure unrelated things.

Question 6Space Planning and Programming

A department needs four workrooms at 250 net square feet each. Using a net-to-gross factor of 1.25, what gross area should be programmed for these workrooms?

  1. 1,500 gsf
  2. 1,250 gsf Correct answer.
  3. 1,000 gsf
  4. 1,750 gsf

Explanation

First compute net area: 4 times 250 equals 1,000 nsf. Multiply by the net-to-gross factor of 1.25 to get 1,250 gross square feet. The factor accounts for circulation, partitions, and shared support space.

Question 7Space Planning and Programming

Which space category typically belongs to non-assignable area in a programming breakdown?

  1. Mechanical rooms Correct answer.
  2. Private offices
  3. Conference rooms
  4. Open workstations

Explanation

Mechanical, electrical, and similar service rooms support building operations rather than a specific occupant function, so they are classified as non-assignable. Offices, conference rooms, and workstations are assigned to occupants and count as assignable. Correct classification protects the program's usable-area budget.

Question 8Space Planning and Programming

What does a stacking diagram primarily organize in a multi-story building program?

  1. The selection of exterior cladding
  2. The sequence of construction trades
  3. The vertical distribution of departments by floor Correct answer.
  4. The layout of the structural grid

Explanation

A stacking diagram arranges program components vertically across floors, weighing factors such as public access, structural loads, and service needs. It bridges the adjacency diagram and the floor-by-floor blocking plan. Cladding, structural grid, and trade sequencing are outside its purpose.

Question 9Space Planning and Programming

A programmer is documenting the number of occupants each space must support. Which input most directly drives the egress and plumbing fixture calculations?

  1. The furniture specification
  2. The finish schedule
  3. The lighting power density
  4. The occupant load of each space Correct answer.

Explanation

Occupant load, derived from the program's space uses and areas, determines required egress capacity and plumbing fixture counts under building codes. It must be established early so life-safety systems are sized correctly. Finishes, furniture, and lighting do not drive these calculations.

Question 10Space Planning and Programming

Which programming technique best captures how frequently two departments interact so adjacencies can be prioritized?

  1. An adjacency matrix scoring relationship strength Correct answer.
  2. A finish comparison matrix
  3. A cost per square foot table
  4. A structural bay schedule

Explanation

An adjacency matrix scores each pair of spaces or departments by relationship strength, such as essential, important, or undesirable. The scores guide bubble diagrams and blocking so the most critical adjacencies are preserved. Cost tables, finish comparisons, and structural schedules do not rank interactions.

Question 11Space Planning and Programming

A building has 60,000 gross square feet and 45,000 net assignable square feet. What is the net-to-gross ratio?

  1. 0.60
  2. 1.33
  3. 0.85
  4. 0.75 Correct answer.

Explanation

Divide net assignable area by gross area: 45,000 divided by 60,000 equals 0.75, or 75 percent. This ratio signals how much of the building serves the program directly. Values above 1.0 are impossible because net area cannot exceed gross area.

Question 12Space Planning and Programming

During programming, a client insists on a fixed total gross area but keeps adding program spaces. What is the most appropriate professional response?

  1. Accept every addition and let the design team resolve conflicts later
  2. Reduce circulation area to zero to absorb the additions
  3. Reconcile the program against the area budget and present trade-offs for client decision Correct answer.
  4. Increase the gross area without informing the client

Explanation

The programmer's role is to test the program against the stated area budget and surface conflicts with options, such as reducing scope or accepting a larger building. Documenting trade-offs lets the client make informed decisions. Silent changes or deferring conflicts undermine the program's reliability.

Question 13Space Planning and Programming

Which statement best describes the relationship between a space program and a design brief?

  1. The program quantifies needs while the brief communicates goals, constraints, and qualitative intent Correct answer.
  2. The program is prepared only after design development
  3. They are identical documents with different titles
  4. The brief replaces the program once design begins

Explanation

The program focuses on quantified requirements such as areas, counts, and adjacencies, while the design brief conveys goals, constraints, and qualitative aspirations. Together they align the design team with client intent. Neither replaces the other, and both precede design development.

Question 14Space Planning and Programming

A programmer must verify that a proposed floor plate can accommodate a department's workstations. Which combination of data is most essential?

  1. Exterior color palette and roof type
  2. Mechanical equipment brand and warranty terms
  3. Construction delivery method and bond type
  4. Workstation count, area per workstation, and circulation allowance Correct answer.

Explanation

Capacity checks require the number of workstations, the area allotted to each, and an allowance for circulation and support space. These yield the department's gross area need for comparison with the available floor plate. The other items are unrelated to spatial capacity.

Question 15Space Planning and Programming

Which factor most commonly explains why a hospital has a lower net-to-gross ratio than an office building?

  1. Hospitals use larger furniture
  2. Hospitals require extensive circulation, mechanical, and support space Correct answer.
  3. Offices have thicker exterior walls
  4. Offices are always single-story

Explanation

Hospitals devote substantial area to corridors sized for beds and equipment, mechanical systems, and clinical support, which lowers the assignable share of gross area. Offices have comparatively compact circulation and support needs. Furniture, wall thickness, and story count are not the principal drivers.

Question 16Space Planning and Programming

What is the purpose of a space-by-space area schedule in a program document?

  1. To track change orders during construction
  2. To list each required space with its quantity, unit area, and total area Correct answer.
  3. To record the construction bid results
  4. To specify the fire-resistance rating of assemblies

Explanation

A space-by-space schedule itemizes every programmed room with quantity, unit area, and total area, forming the quantitative backbone of the program. It allows totals to be checked against the area budget. Bid results, fire ratings, and change orders belong to other documents.

Question 17Space Planning and Programming

A program calls for 12 patient rooms at 200 nsf each and a support area equal to 30 percent of the room area. What total net area is required?

  1. 3,600 nsf
  2. 3,120 nsf Correct answer.
  3. 2,400 nsf
  4. 4,800 nsf

Explanation

Room area is 12 times 200, or 2,400 nsf. Support adds 30 percent of 2,400, which is 720 nsf, giving 3,120 nsf total net area. This total excludes general circulation and building systems.

Question 18Space Planning and Programming

Which sequencing of programming activities is most logical?

  1. Evaluate alternatives, develop the program, gather data, establish goals
  2. Develop the program, gather data, establish goals, evaluate alternatives
  3. Establish goals, gather data, identify needs, develop the program, evaluate alternatives Correct answer.
  4. Gather data, evaluate alternatives, establish goals, develop the program

Explanation

Programming typically begins with goals and constraints, proceeds through data gathering and needs analysis, produces the program document, and tests alternatives against it. This order keeps decisions grounded in client objectives. The other sequences place evaluation or documentation before the information they depend on.

Question 19Space Planning and Programming

Which metric best expresses how much of a site's allowable floor area a proposed program will consume?

  1. The window-to-wall ratio
  2. The parking ratio
  3. The net-to-gross ratio
  4. The floor area ratio utilization Correct answer.

Explanation

Floor area ratio compares total building floor area to lot area, so comparing programmed area to the zoning-allowed FAR shows how much of the entitlement the program uses. Net-to-gross, parking, and glazing ratios measure different relationships. This check often constrains program size on tight urban sites.

Question 20Space Planning and Programming

A client's program totals 80,000 nsf and the target net-to-gross ratio is 0.80. What gross area should the programmer anticipate?

  1. 80,000 gsf
  2. 64,000 gsf
  3. 100,000 gsf Correct answer.
  4. 120,000 gsf

Explanation

Divide net area by the net-to-gross ratio: 80,000 divided by 0.80 equals 100,000 gross square feet. The gross area is always larger than net when the ratio is below 1.0. This estimate guides site selection and budget.

Question 21Space Planning and Programming

In a programming report, why should assumptions about growth and flexibility be documented explicitly?

  1. To eliminate the need for client approval
  2. To replace the need for an area schedule
  3. To satisfy insurance requirements
  4. To allow future reviewers to test whether the program still fits changed conditions Correct answer.

Explanation

Documented assumptions let later reviewers understand the basis of the program and evaluate whether changed conditions invalidate it. This supports informed updates rather than silent drift. Assumptions do not replace schedules or approvals.

Question 22Space Planning and Programming

A department requires strict acoustic separation from a noisy adjacent use. How should this constraint appear in the adjacency analysis?

  1. As a structural load requirement
  2. As a neutral relationship needing no notation
  3. As a positive adjacency requiring direct connection
  4. As a negative adjacency to be avoided or buffered Correct answer.

Explanation

Adjacency matrices can record negative relationships, meaning spaces should be separated or buffered rather than placed together. This guides blocking so that noisy and quiet uses do not share walls or openings. Treating the relationship as positive or neutral would defeat the acoustic requirement.

Question 23Space Planning and Programming

A programmer compares two schemes: Scheme A achieves a 0.82 net-to-gross ratio with long single-loaded corridors, while Scheme B achieves 0.78 with compact double-loaded circulation. Which conclusion is most defensible?

  1. Scheme B may offer better functional performance despite a lower ratio, so trade-offs must be weighed Correct answer.
  2. The ratios are irrelevant to scheme selection
  3. Scheme B should be rejected because its ratio is lower
  4. Scheme A is clearly superior because its ratio is higher

Explanation

A higher net-to-gross ratio indicates area efficiency but does not by itself capture functional quality, travel distance, or flexibility. Single-loaded corridors can inflate efficiency metrics while producing long walks and poor adjacencies. The programmer should present the trade-offs rather than select on ratio alone.

Question 24Space Planning and Programming

During program validation, a planner finds that summing individual department requests exceeds the client's area budget by 15 percent. Which approach best supports a defensible resolution?

  1. Present the gap with prioritized options such as scope reduction, shared space, or budget increase Correct answer.
  2. Scale every department's request down by an equal percentage without discussion
  3. Proceed to design and let contractors value-engineer the scope
  4. Silently delete support spaces to close the gap

Explanation

The planner should quantify the gap and offer the client structured choices, such as reducing scope, consolidating shared functions, or raising the budget. This preserves transparency and client authority over priorities. Uniform cuts or silent deletions ignore differing program priorities and erode trust.

Question 25Space Planning and Programming

Which situation most clearly indicates that a program should be revised rather than carried forward into design?

  1. A new regulatory limit reduces the allowable building footprint below the programmed gross area Correct answer.
  2. The design team requests a bubble diagram
  3. The client confirms all space counts and areas
  4. The programmer finalizes the area schedule

Explanation

When a binding constraint such as a regulatory footprint limit conflicts with the programmed gross area, the program can no longer be realized as written and must be revised or renegotiated. Confirmed counts, diagram requests, and schedule completion are normal steps, not triggers for revision.

Question 26Space Planning and Programming

In a space program, which term refers to the usable area assigned to a specific function, excluding corridors, walls, and mechanical rooms?

  1. Net assignable area Correct answer.
  2. Gross building area
  3. Construction floor area
  4. Site coverage area

Explanation

Net assignable area measures only the floor area that a department or function can actually occupy and use, so it excludes circulation, partitions, and building service spaces. Gross area includes those non-assignable components, which is why the net-to-gross ratio is always below 1.0.

Question 27Space Planning and Programming

A programmer needs to express how much of a proposed building's gross area is actually usable by occupants. Which ratio should be reported?

  1. Rentable area divided by construction cost
  2. Building footprint divided by lot area
  3. Gross area divided by net assignable area
  4. Net assignable area divided by gross area Correct answer.

Explanation

The net-to-gross ratio divides net assignable area by gross area, yielding a value below 1.0 that expresses planning efficiency. Ratios near 0.75 to 0.85 indicate efficient layouts, while lower values signal heavy circulation or service demands.

Question 28Space Planning and Programming

During programming, a client asks the planner to record the maximum number of people each room must accommodate. Which downstream design calculation does this occupancy input most directly support?

  1. Acoustic isolation ratings
  2. Landscape irrigation demand
  3. Structural bay spacing
  4. Egress width and exit count Correct answer.

Explanation

Occupant counts per space drive egress calculations because exit width, travel distance, and number of exits are all derived from the population each space can hold. Recording these figures during programming ensures the later code analysis has defensible inputs.

Question 29Space Planning and Programming

Which document element communicates the total building area target that a programming package is expected to stay within?

  1. The finish schedule
  2. The commissioning plan
  3. The door hardware schedule
  4. The area budget or gross area allowance Correct answer.

Explanation

The area budget sets the gross area ceiling the program must respect, and every department request is tested against it during validation. Finish, hardware, and commissioning documents belong to later design and delivery phases and carry no area ceiling.

Question 30Space Planning and Programming

A planner is building an adjacency matrix for a research facility. Two laboratories share a hazardous chemical corridor, and a third lab is separated by a fire wall. How should the matrix capture the difference between the shared-corridor pair and the fire-wall pair?

  1. Assign identical positive weights to both pairs because both are laboratories
  2. Leave both pairs unweighted and let the architect decide during design
  3. Assign a stronger adjacency weight to the shared-corridor pair and a negative or prohibited weight to the fire-wall pair Correct answer.
  4. Assign weights only to the fire-wall pair because separation is a code issue

Explanation

An adjacency matrix expresses both attraction and separation, so pairs that should be near each other receive high positive weights while pairs that must be isolated receive negative or prohibited values. Treating all laboratory pairs identically would erase the safety constraint the matrix exists to communicate.

Question 31Space Planning and Programming

A programmer is preparing a stacking diagram for a six-story outpatient building. Which consideration most directly determines which departments occupy the lower floors?

  1. The number of staff assigned to each department
  2. The alphabetical order of department names
  3. The preferred paint colors of each department
  4. Public access, heavy equipment loads, and vertical circulation efficiency Correct answer.

Explanation

Stacking decisions weigh public accessibility, structural loads from heavy equipment, and the efficiency of vertical circulation, so high-traffic public functions typically sit low while heavy imaging equipment may require ground-level placement. Department naming, staffing counts, and finishes do not govern vertical positioning.

Question 32Space Planning and Programming

A client's program lists 30 open workstations at 80 net square feet each and 6 enclosed offices at 150 net square feet each. What is the total net assignable area for these two space types?

  1. 3,300 net square feet Correct answer.
  2. 3,900 net square feet
  3. 2,900 net square feet
  4. 2,400 net square feet

Explanation

Multiply each count by its unit area and add the results: 30 times 80 equals 2,400, and 6 times 150 equals 900, giving 3,300 net square feet. This arithmetic underlies every space-by-space schedule in a program.

Question 33Space Planning and Programming

A planner must decide whether to program a shared conference center serving four tenant departments. Which programming approach best justifies the shared facility?

  1. Compare peak simultaneous demand across tenants against the cost of duplicating meeting rooms in each department Correct answer.
  2. Defer the decision until furniture is specified
  3. Assume each tenant needs its own conference room of equal size
  4. Base the decision solely on the total number of employees in the building

Explanation

Shared facilities are justified when peak concurrent demand across users is lower than the sum of individually reserved capacity, allowing fewer rooms to serve the same population. Comparing that demand pattern against duplication cost is the standard programming test for consolidation.

Question 34Space Planning and Programming

A programmer is converting a net area request into gross area using a net-to-gross factor of 1.30. The request totals 5,200 net square feet. What gross area should be programmed?

  1. 5,200 gross square feet
  2. 4,000 gross square feet
  3. 6,760 gross square feet Correct answer.
  4. 6,500 gross square feet

Explanation

Multiplying net area by the net-to-gross factor gives the gross allowance: 5,200 times 1.30 equals 6,760 gross square feet. The factor accounts for circulation, partitions, and service space not captured in the net request.

Question 35Space Planning and Programming

A programming team finds that two departments both claim the same 1,200-square-foot conference suite in their requests. What is the most appropriate programming response?

  1. Delete the suite from the program to avoid conflict
  2. Reconcile the duplicate claim so the suite is counted once and document the shared allocation Correct answer.
  3. Count the suite twice because both departments listed it
  4. Split the suite area in half and assign each department 600 square feet

Explanation

Double counting inflates the program and produces an unreliable area budget, so duplicate claims must be reconciled and the shared allocation recorded explicitly. Documenting the resolution preserves traceability when the program is validated against the budget.

Question 36Space Planning and Programming

Which programming product translates functional requirements into a written narrative that designers can interpret without re-interviewing the client?

  1. Punch list
  2. Bid tabulation
  3. As-built drawing set
  4. Design brief Correct answer.

Explanation

The design brief converts the quantitative program and qualitative goals into a narrative that guides design decisions and reduces repeated client clarification. Punch lists, as-built drawings, and bid tabulations are construction and procurement artifacts produced far later.

Question 37Space Planning and Programming

A hospital program shows a much lower net-to-gross ratio than a comparable office program. Which explanation is most defensible?

  1. Hospitals assign less area to patient rooms than offices assign to workstations
  2. Hospitals use smaller structural bays that reduce usable area
  3. Hospitals require extensive non-assignable space for mechanical systems, imaging equipment, and patient transport corridors Correct answer.
  4. Hospitals schedule construction faster than offices

Explanation

Hospitals devote a large share of gross area to mechanical, electrical, imaging, and transport infrastructure that is non-assignable, which lowers the net-to-gross ratio. Office buildings carry lighter service demands, so a greater proportion of their gross area becomes assignable.

Question 38Space Planning and Programming

A planning team must decide whether to renovate an existing wing or add new construction to satisfy a growing program. Which analysis best supports that decision during programming?

  1. Defer the choice until schematic design is complete
  2. Compare the usable capacity and constraints of the existing wing against the area and cost of new construction Correct answer.
  3. Choose renovation because it always costs less per square foot
  4. Select the option with the shortest construction schedule

Explanation

The renovation-versus-addition decision hinges on how much usable capacity the existing structure can deliver given its constraints, weighed against the area and cost of new construction. Schedule and blanket cost assumptions are secondary and often misleading without capacity data.

Question 39Space Planning and Programming

A programmer is testing whether a proposed 90,000-square-foot program fits a site whose zoning permits a floor area ratio of 2.0 on a 40,000-square-foot lot. What is the maximum allowable gross floor area, and does the program fit?

  1. 90,000 square feet, so the program exactly fits
  2. 45,000 square feet, so the program does not fit
  3. 80,000 square feet, so the program does not fit Correct answer.
  4. 180,000 square feet, so the program fits with room to spare

Explanation

Floor area ratio multiplied by lot area gives allowable gross floor area: 2.0 times 40,000 equals 80,000 square feet. Because the program requests 90,000 square feet, it exceeds the zoning envelope by 10,000 square feet and must be reduced or the site reconsidered.

Question 40Space Planning and Programming

During program validation, a planner discovers that the sum of department requests exceeds the client's area budget by 15 percent. Which action is most appropriate before design proceeds?

  1. Silently reduce each department's request by 15 percent
  2. Facilitate prioritization and trade-off decisions with the client to bring the program within budget Correct answer.
  3. Increase the area budget without client involvement
  4. Proceed to design and resolve the overage during value engineering

Explanation

When requests exceed the budget, the programmer must surface the gap and guide the client through explicit prioritization so reductions reflect real needs rather than arbitrary cuts. Silent reductions or deferral to value engineering shift the conflict downstream, where changes are costlier and less informed.

Question 41Codes, Standards, and Regulations

Under the International Building Code, which document establishes the minimum number and width of exits from a story based on occupant load?

  1. Chapter 10 of the International Building Code Correct answer.
  2. The local zoning ordinance
  3. ASME A17.1 elevator safety code
  4. The adopted edition of NFPA 101 Life Safety Code

Explanation

The International Building Code governs means of egress in Chapter 10, which sets exit access, exit, and exit discharge requirements including egress capacity tied to occupant load. NFPA 101 is a separate model code that jurisdictions may adopt instead of the IBC, not a supplement that overrides it. Zoning ordinances address land use, not egress design.

Question 42Codes, Standards, and Regulations

A designer is told the project must comply with the locally adopted accessibility standard. In most U.S. jurisdictions this refers to which document?

  1. ANSI/ASSP Z359 fall protection code
  2. The International Energy Conservation Code
  3. ICC A117.1 Accessible and Usable Buildings and Facilities Correct answer.
  4. The Fair Housing Act Design Manual

Explanation

ICC A117.1 is the technical accessibility standard referenced by the International Building Code and adopted by many jurisdictions as the enforceable criteria for accessible design. The Fair Housing Act Design Manual applies to covered residential dwellings, not to all building types. The other listed documents address fall protection and energy, not accessibility.

Question 43Codes, Standards, and Regulations

Which organization publishes the National Electrical Code that many jurisdictions adopt by reference?

  1. National Fire Protection Association Correct answer.
  2. International Code Council
  3. American Society of Civil Engineers
  4. Underwriters Laboratories

Explanation

The National Electrical Code is NFPA 70, published by the National Fire Protection Association and adopted by reference in state and local law. The International Code Council publishes the International Codes, including the IBC and IRC, not the NEC. ASCE publishes structural standards and UL publishes product safety standards.

Question 44Codes, Standards, and Regulations

In the International Building Code, what does a building's occupancy classification primarily determine?

  1. The required number of parking stalls
  2. The property tax assessment category
  3. The construction budget tier assigned by the owner
  4. The applicable fire and life-safety requirements for the space Correct answer.

Explanation

Occupancy classification groups spaces by use and hazard so that the code can apply appropriate fire protection, egress, and construction type requirements. It does not set budgets, tax categories, or parking counts, which are governed by other documents. Classification drives requirements such as sprinkler thresholds and allowable area.

Question 45Codes, Standards, and Regulations

A corridor in a sprinklered business occupancy serves an occupant load of 60. Under the IBC egress provisions, what is the minimum required corridor width for this egress path?

  1. 60 inches clear
  2. 44 inches clear Correct answer.
  3. 28 inches clear
  4. 36 inches clear

Explanation

Egress capacity is computed at 0.2 inches per occupant for sprinklered corridors, so 60 occupants require 12 inches of capacity, but the code minimum corridor width of 44 inches controls. The 36-inch value is the minimum clear width for a single accessible route, not a corridor serving this load. Widths above 44 inches are required only when calculated capacity exceeds that minimum.

Question 46Codes, Standards, and Regulations

A three-story building has a Type IIB construction classification. Which statement best describes what that designation controls under the IBC?

  1. It sets the maximum travel distance to an exit
  2. It specifies the seismic design category
  3. It fixes the fire-resistance ratings of structural elements and exterior walls Correct answer.
  4. It determines the required fire flow from the water supply

Explanation

Construction type under the IBC establishes required fire-resistance ratings for structural frame, bearing walls, floor and roof construction, and exterior wall fire separation distance. Travel distance is a means-of-egress requirement independent of construction type. Fire flow and seismic design category are determined by other provisions and referenced standards.

Question 47Codes, Standards, and Regulations

A client asks whether a proposed assembly space with fixed seating for 300 people needs two exits. Under the IBC, what is the governing rule?

  1. The number of exits is set by the fire marshal's discretion alone
  2. Two exits are required because the occupant load exceeds the single-exit threshold Correct answer.
  3. One exit is permitted if the space is sprinklered and travel distance is under 100 feet
  4. Two exits are required only if the room exceeds 5,000 square feet

Explanation

The IBC permits a single exit only for small occupant loads and limited travel distances; an assembly space with 300 occupants far exceeds the single-exit threshold and requires at least two means of egress. Sprinkler protection does not eliminate the two-exit requirement at that occupant load. Exit count is a code requirement, not a discretionary determination.

Question 48Codes, Standards, and Regulations

A ramp serving an accessible route rises 30 inches. Which feature is required by ICC A117.1 for this ramp?

  1. No edge protection if the rise is under 36 inches
  2. A minimum running slope of 1:8
  3. Handrails on both sides and intermediate landings Correct answer.
  4. A single handrail on the right side only

Explanation

Ramps with a rise greater than 6 inches must have handrails on both sides, and a 30-inch rise requires intermediate landings because each ramp run is limited to a 30-inch rise maximum. Running slope for an accessible ramp may not exceed 1:12. Edge protection is required regardless of whether the rise is under 36 inches.

Question 49Codes, Standards, and Regulations

A new commercial kitchen installs a fire suppression system over cooking equipment. Which standard is typically referenced for the design and installation of that system?

  1. NFPA 13
  2. NFPA 96 Correct answer.
  3. NFPA 72
  4. NFPA 20

Explanation

NFPA 96 governs ventilation control and fire protection of commercial cooking operations, including the design of hood suppression systems. NFPA 13 covers automatic sprinkler systems generally, NFPA 72 covers fire alarm and signaling, and NFPA 20 covers stationary fire pumps. Using the wrong standard would result in a system not suited to cooking grease hazards.

Question 50Codes, Standards, and Regulations

During plan review, an architect notes the project site is in a jurisdiction that adopted the International Residential Code for a duplex. Which code typically governs the structural design of that duplex?

  1. The IBC, because the IRC never applies to duplexes
  2. NFPA 5000, because the IRC is limited to single-family homes
  3. The IRC, which contains prescriptive and engineered provisions for one- and two-family dwellings Correct answer.
  4. ASCE 7 alone, because the IRC excludes structural requirements

Explanation

The International Residential Code applies to one- and two-family dwellings and townhouses and includes its own structural provisions, with reference to standards such as ASCE 7 for engineered design. It is not limited to single-family homes. The IBC would apply only if the jurisdiction did not adopt the IRC for that scope.