Hoja de Referencia del Examen · Referencia Rápida
Tennessee BC Combined Residential/Commercial/Industrial Contractor
Tennessee · PSI Services Contractor
Verificado, no estimado. Cada cifra a continuación proviene de la estructura oficial del examen que mantenemos: número de preguntas, puntaje de aprobación y ponderación de temas. Las preguntas de práctica están fundamentadas en la ley fuente con citas de estatutos. Omitimos cualquier cifra que no podamos verificar en lugar de adivinarla.
Total de preguntas
100
Puntaje de aprobación
73%
Tiempo del examen
300 min
Administrado por
PSI Services Contractor
Formato
Se permiten materiales de referencia
Porción Estatal de Tennessee 100 preguntas
Trabajo en Sitio, Cimentaciones y Fundaciones
10 Q · 10%
SiteworkFootingsFoundationExcavation safety and worker protection (OSHA Subpart P)Soil classification and bearing capacityConcrete mix design and compressive strength requirementsFoundation drainage, dampproofing, and waterproofingFooting reinforcement and seismic requirementsSoil compaction testing and methodsFoundation wall types and form constructionSite layout, grading, and drainage requirements
Concreto y Refuerzo de Concreto
15 Q · 15%
ConcreteConcrete ReinforcementConcrete mix design and proportioningConcrete admixtures (air-entraining, water-reducing, set-accelerating, set-retarding)Supplementary cementitious materials (fly ash, slag cement, silica fume)Concrete durability and exposure categoriesCuring methods and requirementsHot and cold weather concreting precautionsFormwork design, installation, and removalConcrete placement, consolidation, and finishingPrecast concrete erection: planning, transport, rigging, bracing, connections, and tolerances (PCI Erectors' Manual)
Mampostería
10 Q · 10%
Masonry materials: clay brick, concrete masonry units (CMU), stone, and AAC typesMortar types, proportions, and properties (Types M, S, N, O, K)Grout materials, mix requirements, and placement (low-lift and high-lift grouting)Masonry wall systems: solid, cavity, composite, veneer, and reinforced wallsAllowable stress design and strength design of masonry structures (ACI/TMS 402)Footings and foundations for masonry constructionAnchors, ties, joint reinforcement, and wall tie installation requirementsMasonry fireplaces and chimneys: construction requirements and code compliance
Carpintería
6 Q · 6%
Wood wall framing components (studs, plates, headers, sills, cripple studs)Floor framing systems (joists, girders, posts, sill plates, subfloor)Roof framing types and components (common, hip, valley, and jack rafters, ridge board, trusses)Structural systems and framing methods (platform framing, balloon framing, post-and-beam, steel framing)Wall sheathing and bracing requirementsEngineered wood products (plywood, OSB, LVL, glulam, I-joists)Finish carpentry (stairways, molding and trim, doors, windows, cabinets, finish flooring)Building codes, permits, and inspections (IRC, IBC, fastening schedules, span tables)
Metales
10 Q · 10%
Steel joist types and designations (K-Series, LH-Series, DLH-Series, joist girders, CJ-Series composite joists)Erection bridging requirements and hoisting cable release criteriaSteel joist and joist girder handling, receiving, unloading, and storageColumn anchorage and structural steel assembly requirements (OSHA Subpart R)Steel deck types, profiles, and installation (composite floor deck, roof deck, form deck, cellular deck)Steel deck fastening methods (welding, mechanical fasteners, shear studs, side lap connections)Fall protection and safety requirements during steel erectionCold-formed steel framing members, tools, and methods for residential construction
Techado
6 Q · 6%
Roof framing types and components (gable, hip, valley, shed, gambrel, mansard)Rafter layout and span tables (common, hip, valley, and jack rafters)Roof sheathing and decking requirementsUnderlayment types, application, and ice barrier requirementsRoof covering installation methods (asphalt shingles, wood shingles/shakes, tile, slate, metal, built-up, elastomeric, roll roofing)Flashing installation (valleys, chimneys, vents, parapet walls, crickets and saddles)Roof drainage systems (drip edge, gutters, scuppers, roof drains)Fire classification of roof assemblies and wind resistance requirements
Oficios Asociados
10 Q · 10%
Gypsum board and drywall installation (types, framing, fastening, finishing levels)Plumbing systems: supply, DWV, sanitary drainage, traps, vents, and fixturesHVAC systems: heating and cooling equipment, duct construction, exhaust systems, and combustion airFuel gas piping, appliances, venting, and chimneysElectrical systems: services, branch circuits, wiring methods, receptacle placement, GFCI/AFCI protectionThermal and acoustical insulation (R-value, vapor retarders, sound control)Finish flooring installation (wood strip, parquet, resilient, ceramic tile, carpet)Glass and glazing requirements, plastic materials, and elevator/conveying systems
Código General, Lectura de Planos y Estimación
27 Q · 27%
General CodePlan ReadingEstimatingOccupancy classification and use groups (IBC Chapter 3)Building height, area, and type of construction limitationsMeans of egress requirements and occupant load calculationsFire-resistance ratings and fire protection systemsAccessibility requirements and accessible routesSpecial inspections, permits, and construction safeguardsQuantity takeoff methods and material calculationsReading construction plan symbols, scales, and drawing types
Seguridad OSHA
6 Q · 6%
Fall protection systems and requirements (guardrail, safety net, personal fall arrest)Scaffolding types, erection, and safety requirementsExcavation, trenching, and cave-in protective systemsPersonal protective equipment (PPE) selection and useHazard communication, signs, signals, and barricadesFire protection, prevention, and flammable materials handlingElectrical safety and lockout/tagout proceduresConfined space entry requirements and permit procedures
Distinciones Clave
3/8" Gypsum Panelvs1/2" or 5/8" Gypsum Panel
3/8" panels are limited to 16" on-center framing spacing, while 1/2" and 5/8" panels support up to 24" on-center spacing.
Gypsum Construction Handbook, Page 3 (Gypsum Panel Limitations item 3)Active Pressure (foundation wall design)vsAt-Rest Pressure (foundation wall design)
Foundation walls not more than 8 feet below grade that are laterally supported at the top by flexible diaphragms may be designed for active pressure; walls where horizontal movement is restricted must be designed for the greater at-rest pressure.
2021 International Building Code, Section 1610.1Fiberglass Asphalt ShinglesvsOrganic Asphalt Shingles
Fiberglass shingles use a fiberglass mat as the base, while organic shingles use a cellulose-fiber base mat.
Roofing Construction and Estimating, Chapter 4—Asphalt ShinglesCasement WindowvsDouble-Hung Window
A casement window's side-hinged sash allows the entire window area to be opened for ventilation, whereas a double-hung window only permits partial opening.
Windows & Skylights chapter, Types of Windows sectionMuntinvsMullion
A muntin is a vertical or horizontal piece within a single sash that holds individual panes of glass, while a mullion is a vertical piece separating two combined window units.
Windows & Skylights chapter, Double-Hung Windows sectionSolid-Core DoorvsHollow-Core Door
Solid-core doors reduce warping and offer greater fire resistance, making them preferred for exterior use, while hollow-core doors are less fire-resistant and more prone to warping.
Residential Doors chapter, Flat-Panel Doors sectionType M MortarvsType N Mortar
Type M mortar has high compressive strength suited for heavily loaded or below-grade foundation walls, while Type N is a general-purpose mortar used for masonry above grade.
Carpentry and Building Construction, Section 10.3, Page 279Direct (Job) Overhead CostvsDirect Construction Cost
Direct overhead costs (e.g., traffic control, barricades, flaggers) are administrative costs tied to a specific job but not a specific trade, whereas direct construction costs are tied directly to labor, materials, or equipment for a specific phase of work.
Pipe and Excavation Contracting, Pages 20-21Cold Joint (concrete)vsKeyway (concrete)
A cold joint is an unintended weak, potentially leaky plane formed when fresh concrete is poured against already-curing concrete, while a keyway is an intentionally formed groove (3½" wide × 1½" deep) in a footing to mechanically lock the foundation wall and resist moisture seepage.
Carpentry and Building Construction, Section 10.2, Page 266Five-Bag Concrete MixvsSix-Bag Concrete Mix
Five-bag mix (five bags of cement per cubic yard) is the minimum acceptable for most concrete work, while six-bag mix is specified where high strength is needed or where steel reinforcement is used.
Carpentry and Building Construction, Section 8.2, Page 226TheodolitevsStandard Transit/Level
A theodolite reads horizontal and vertical angles electronically and displays measurements on an LCD screen requiring no vernier scale, whereas a standard transit relies on a manual vernier scale for angle measurement.
Carpentry and Building Construction, Chapter 9 — Types of InstrumentsExtruded Expanded Polystyrene (XPS) InsulationvsExpanded Polystyrene (EPS) Insulation
XPS has greater compressive strength and is suitable for below-grade foundation wall use, while standard EPS has lower compressive strength and is not specifically rated for below-grade applications.
Carpentry And Building Construction, Section 31.1 — Rigid Insulation Materials and R-ValueTérminos Clave
Ground Snow Load Threshold (IRC) International Residential Code, Section R301.2.3, PDF Page 84
Per IRC Section R301.2.3, buildings in regions with ground snow loads exceeding 70 psf must be designed per accepted engineering practice rather than the IRC's prescriptive provisions.
Minimum Concrete Floor Slab Thickness (IBC) 2021 International Building Code, Section 1907.1
Per IBC Section 1907.1, concrete floor slabs supported directly on the ground must be not less than 3½ inches thick.
Vapor Retarder Requirement Under Slab (IBC) 2021 International Building Code, Section 1907.1
Per IBC Section 1907.1, a minimum 6-mil polyethylene vapor retarder with joints lapped not less than 6 inches must be placed between the base course or subgrade and the concrete floor slab.
Plain Concrete Footing Minimum Thickness for Group R-3 (IBC) 2021 International Building Code, Section 1906.1
Per IBC Section 1906.1, plain concrete footings for Group R-3 and light-frame construction less than two stories may be as thin as 6 inches, provided the footing does not extend more than 4 inches on either side of the supported wall.
Anchor Bolt Embedment Depth (IBC) 2021 International Building Code, Section 1905.1.8
Per IBC Section 1905.1.8, anchor bolts attaching wood sill plates to concrete foundations must be embedded a minimum of 7 inches into the concrete.
Active vs. At-Rest Pressure Design (IBC) 2021 International Building Code, Section 1610.1
Per IBC Section 1610.1, foundation walls extending not more than 8 feet below grade and laterally supported at the top by flexible diaphragms are permitted to be designed for active lateral soil pressure.
Crawl Space Ventilation Ratio Carpentry And Building Construction, Section 31.1 — Crawl-Space Ventilation
Per Carpentry and Building Construction Section 31.1, a crawl space requires a minimum of 1 square foot of net ventilation area for every 150 square feet of crawl-space floor area (e.g., 1,200 sq ft ÷ 150 = 8 sq ft of venting).
Differential Leveling Carpentry and Building Construction, Chapter 9 — Measuring a Difference in Elevation
The process of determining differences in elevation between remote points by using one or more intermediate instrument setups between them.
Porosity Carpentry and Building Construction, Chapter 9 — The Excavation
The measurement of the ability of water to flow through soil, used to assess drainage quality before construction.
Consolidation (concrete) Carpentry and Building Construction, Section 8.2, Page 227
The process of removing air pockets and forcing concrete into all parts of the forms, accomplished by vibrating, tamping, spading, or tapping the forms.
Egress Window Minimum Open Area Windows & Skylights chapter, Design Requirements section
Building codes require egress windows on upper floors to have an unblocked open area of not less than 5.7 sq. ft. (grade-floor windows require 5.0 sq. ft.).
U-Value (windows) Windows & Skylights chapter, Energy Efficiency - Ratings section
A measure of window heat loss where a lower U-value indicates greater insulating performance and less heat transfer.
Gain (door hinge mortise) Residential Doors chapter, Hinges section
A mortise cut into the door edge and jamb for hinge installation, with depth equal to the thickness of a single hinge leaf so the door sits flush when closed.
Batter Boards Carpentry and Building Construction, Chapter 9 — Setting Up Batter Boards
Temporary boards set up at each corner of a building at least 4 feet beyond the foundation lines to hold layout strings during excavation and foundation work.
Room-Finish Schedule Carpentry and Building Construction, Section 2.3, Page 57
A drawing included in architectural plans that identifies the materials and finishes to be used for floors, walls, and ceilings in each room of a building.
Stepped Footing Maximum Vertical Step Carpentry and Building Construction, Section 10.1, Page 260
When using stepped footings on sloped lots, each vertical step should not exceed 2 feet in height for a stronger wall and easier finish grading.
Fórmulas que Debes Saber
Excavation Volume (cubic yards)
[(Length + clearance) × (Width + clearance) × Depth] ÷ 27Crawl Space Ventilation Area (sq ft)
Crawl space floor area (sq ft) ÷ 150Elevation Difference Between Two Points
Higher elevation − Lower elevation = DifferenceCubic Feet to Cubic Yards Conversion
Cubic yards = Total cubic feet ÷ 27Minimum Ventilation Opening Area (rooms)
Minimum openable window area = Floor area × 0.04 (4%)Minimum Natural Light Window Area (rooms)
Minimum total glass area = Floor area × 0.08 (8%)Board Feet of Lumber
Board feet = (Thickness in inches × Width in inches × Length in feet) ÷ 12