Hoja de Referencia del Examen · Referencia Rápida
Tennessee BC-B Commercial 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, Zapatas y Cimentación
10 Q · 10%
SiteworkFootingsFoundationSoil classification and bearing capacityExcavation safety and protective systems (OSHA Subpart P)Dampproofing and waterproofing of foundation wallsFooting drains and subsoil drainage systemsConcrete formwork for foundations and footingsSite layout and building location using surveying instrumentsGrading, backfill placement, and site drainage requirementsConcrete materials, reinforcement, and slab construction
Concreto y Refuerzo de Concreto
15 Q · 15%
ConcreteConcrete ReinforcementConcrete mix design and proportioningConcrete batching, mixing, and transportingConcrete placement, consolidation, and finishingCuring methods and requirementsConcrete durability and exposure categoriesFormwork design and removalReinforcing bar fabrication, sizes, grades, and ASTM standardsConcrete cover requirements and bar supportsPrecast concrete erection: planning, transport, rigging, bracing, connections, and tolerances (PCI Erectors' Manual)
Mampostería
10 Q · 10%
Masonry materials: clay brick types, grades, and manufacturing processesConcrete masonry unit (CMU) types, grades, and propertiesMortar types, proportions, and mixing requirementsMasonry wall systems: solid, cavity, composite, hollow, and veneer wallsLaying brick and block techniques: mortar placement, coursing, leads, and mason's lineMasonry reinforcement, anchors, ties, and joint reinforcementMasonry structural design: allowable stress, strength design, and empirical design methodsOSHA safety requirements and jobsite safety for masonry construction
Metales
10 Q · 10%
Open web steel joist types and designations (K-, LH-, DLH-, CJ-Series, joist girders)Steel deck types and profiles (composite floor, roof, form, cellular, acoustic)Bridging requirements and erection bridging installation proceduresOSHA Subpart R steel erection safety requirementsJoist and joist girder erection sequence and attachment requirementsSteel deck fastening methods (welding, mechanical fasteners, shear studs, side lap connections)Receiving, unloading, and storing joist productsIBC Chapter 22 standards for structural steel, cold-formed steel, and aluminum
Carpintería
6 Q · 6%
Floor framing components: posts, girders, sill plates, joists, and subfloorWall framing members: studs, plates, headers, rough sills, cripple studs, and trimmer studsRoof framing: common, hip, valley, and jack rafters; ridge board vs. ridge beamEngineered wood products: plywood grading, LVL, glulam, OSB, and I-joistsStructural framing systems: platform, balloon, post-and-beam, and steel framingRoof styles and roof assembly: gable, hip, shed, mansard, gambrel, and dormer framingStair construction: stringers, treads, risers, handrails, and code requirementsFinish carpentry: molding and trim installation, interior doors and windows, cabinets, wall paneling, and finish flooring
Seguridad OSHA
6 Q · 6%
Fall protection requirements and systems (guardrail, safety net, personal fall arrest)Scaffold safety requirements and load capacityExcavation and trenching safety (cave-in protection, sloping, shoring)Personal protective equipment (PPE) selection and employer responsibilitiesElectrical safety in construction (grounding, GFCI, lockout/tagout, working clearances)Hazardous and toxic substances (asbestos, silica, permissible exposure limits)Fire protection and prevention on construction sitesStairway and ladder safety requirements
Código General, Lectura de Planos y Estimación
27 Q · 27%
General CodePlan ReadingEstimatingIBC occupancy classification and use groupsBuilding height, area limitations, and types of constructionFire-resistance ratings and fire and smoke protection featuresMeans of egress requirements and occupant load calculationsAccessibility requirements and accessible routesSpecial inspections and tests during constructionSafeguards during construction and demolitionQuantity takeoff methods and soil volume calculations
Oficios Asociados
10 Q · 10%
Gypsum board and panel product types, properties, and selectionDrywall installation methods, framing requirements, and fastener spacingJoint treatment, finishing levels, and trim accessories for gypsum systemsFire-rated and sound-rated gypsum wall and ceiling assembliesConventional plaster and veneer plaster application and basesSuspended and acoustical ceiling systems, grid types, and panel selectionCement backerboard and fiber-reinforced panel installationPlumbing, electrical, and HVAC mechanical systems overview for commercial construction
Techado
6 Q · 6%
Roof measurement, area calculation, and slope/pitch determinationRoof sheathing and decking types, requirements, and load considerationsUnderlayment types, installation methods, and requirements by roof slope and covering typeFlashing installation — drip edge, valley, step, chimney, and vent flashingsAsphalt shingle types, installation patterns, and application requirementsAlternative roofing materials — wood shingles/shakes, tile, slate, metal, roll roofing, built-up, and elastomeric systemsIBC fire classification and wind resistance requirements for roof assembliesRoofing repair, maintenance, leak identification, and hail damage assessment
Distinciones Clave
Active Pressure (foundation wall design)vsAt-Rest Pressure (foundation wall design)
Foundation walls extending not more than 8 feet below grade and laterally supported at the top by flexible diaphragms may be designed for active pressure; walls where horizontal movement is restricted at the top must be designed for the greater at-rest pressure.
2021 International Building Code, Section 1610.13/8" Gypsum Panelvs1/2" or 5/8" Gypsum Panel
3/8" panels are limited to framing spaced 16" on center, while 1/2" and 5/8" panels are designed for framing centers up to 24" on center.
Gypsum Construction Handbook, Page 3 (Gypsum Panel Limitations item 3)Fiberglass Asphalt ShinglesvsOrganic Asphalt Shingles
Fiberglass shingles use a fiberglass base mat saturated with asphalt, while organic shingles use a cellulose-fiber base mat.
Roofing Construction and Estimating, Chapter 4—Asphalt ShinglesDirect (Job) Overhead CostvsDirect Construction Cost
Direct overhead costs are administrative costs tied to a specific job but not to a specific trade (e.g., traffic control/barricades/flaggers), whereas direct construction costs are tied directly to labor, material, and equipment for a specific phase (e.g., pipe materials, backhoe rental, pipe bedding).
Pipe and Excavation Contracting, Pages 20-21Solid-Core DoorvsHollow-Core Door
Solid-core doors consist of wood strips, particleboard, or rigid foam covered with veneer, reducing warping and providing 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 sectionCasement WindowvsDouble-Hung Window
A casement window is side-hinged and allows the entire window area to be opened for ventilation, whereas a double-hung window can only open a portion of its total area at one time.
Windows & Skylights chapter, Types of Windows sectionMuntinvsMullion
A muntin is a vertical or horizontal piece within a single window sash that holds individual panes of glass, while a mullion strip is a vertical piece that separates combined (multiple) window units from each other.
Windows & Skylights chapter, Double-Hung Windows sectionBuilder's Level (Dumpy Level)vsTheodolite
A builder's level is the least expensive surveying instrument, accurate to ±1/4" at 75 feet, while a theodolite reads horizontal and vertical angles electronically on an LCD screen and is used when extremely accurate measurements are required.
Carpentry and Building Construction, Chapter 9 — Types of Instruments / LevelsExtruded Expanded Polystyrene (XPS)vsExpanded Polystyrene (EPS)
XPS has greater compressive strength and is specifically suitable for use below grade on foundation walls, whereas standard EPS has lower compressive strength and is not rated for below-grade foundation use.
Carpentry And Building Construction, Section 31.1 — Rigid Insulation Materials and R-ValueFive-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 226Primary Roof Drainage SystemvsSecondary Roof Drainage System
The primary drainage system handles normal roof drainage, while the secondary system is positioned at a higher elevation and activates only when the primary system is blocked, limiting water accumulation above that elevation.
2021 International Building Code, Section 1611.3Differential LevelingvsSingle-Setup Leveling
Differential leveling is used to determine elevation differences between remote points that require one or more intermediate instrument setups, while single-setup leveling measures elevation from one instrument position without intermediate points.
Carpentry and Building Construction, Chapter 9 — Measuring a Difference in ElevationTérminos Clave
Rain Load Formula (R = 5.2(ds + dh)) 2021 International Building Code, Section 1611.1
Per IBC Section 1611.1, roof rain load R equals 5.2 times the sum of the static head depth (ds) and the hydraulic head depth (dh) at the secondary drainage inlet.
Ponding Instability Evaluation 2021 International Building Code, Section 1611.2
Per IBC Section 1611.2, susceptible bays of roofs must be evaluated for ponding instability in accordance with Chapters 7 and 8 of ASCE 7.
Concrete Floor Slab Minimum Thickness 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.
Polyethylene Vapor Retarder (Under Slab) 2021 International Building Code, Section 1907.1
Per IBC Section 1907.1, a 6-mil polyethylene vapor retarder with joints lapped not less than 6 inches must be placed between the base course and the concrete floor slab.
Plain Concrete Footing Minimum Thickness (Light-Frame, R-3) 2021 International Building Code, Section 1906.1
Per IBC Section 1906.1, plain concrete footings for Group R-3 light-frame occupancies may be as thin as 6 inches, provided the footing does not extend more than 4 inches on either side of the supported wall.
Construction Document Structural Requirements 2021 International Building Code, Section 1603.1
Per IBC Section 1603.1, construction documents must show size, section, and relative locations of structural members with floor levels, column centers, and offsets dimensioned.
Wind Speed Indication (Light-Frame Buildings) 2021 International Building Code, Section 1603.1 Exception
Per IBC Section 1603.1 Exception, construction documents for conventional light-frame construction must indicate the basic design wind speed V (mph), allowable stress design wind speed Vasd, and wind exposure category.
Cripple Wall Bracing Factor IRC Section R602.10.10
Per IRC Section R602.10.10, the required length of cripple wall bracing must be multiplied by a factor of 1.15 compared to the bracing length used for the wall above.
Top Plate Notching Metal Tie Requirement IRC Section R602.6.1
Per IRC Section R602.6.1, when a top plate is cut or notched more than 50% of its width, a galvanized metal tie at least 0.054 inch thick and 1½ inches wide, fastened with eight 10d nails on each side, must be installed across the opening.
Differential Leveling Carpentry and Building Construction, Chapter 9 — Measuring a Difference in Elevation
The process of determining elevation differences between remote points by using one or more intermediate instrument setups between the known and unknown points.
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 vibration, tamping, spading, or tapping forms.
Porosity (Soil) Carpentry and Building Construction, Chapter 9 — The Excavation
The measurement of the ability of water to flow through soil, used during site testing to determine drainage quality before construction begins.
Gain (Door Hinge Mortise) Residential Doors chapter, Hinges section
A mortise cut into the edge of a door or jamb with a depth equal to the thickness of a single hinge leaf, allowing the hinge leaves to sit flush when the door is closed.
U-Value (Window Energy Rating) Windows & Skylights chapter, Energy Efficiency - Ratings section
A measure of heat loss through a window assembly where a lower U-value indicates greater insulating performance and less heat loss or gain.
Egress Window Minimum Open Area Windows & Skylights chapter, Design Requirements section
Upper-floor egress windows must provide a minimum unblocked open area of 5.7 sq. ft., while grade-floor egress windows require a minimum of 5.0 sq. ft.
Room-Finish Schedule Carpentry and Building Construction, Section 2.3, Page 57
A schedule on architectural plans that identifies the materials and finishes to be used for floors, walls, and ceilings in each room and hallway.
Fórmulas que Debes Saber
Excavation Volume (cubic feet)
(Length + 2×clearance) × (Width + 2×clearance) × DepthCubic Feet to Cubic Yards Conversion
Cubic Yards = Total Cubic Feet ÷ 27Crawl Space Ventilation Required (sq. ft.)
Minimum Net Vent Area = Crawl Space Area (sq. ft.) ÷ 150Roof Rain Load
R = 5.2 × (ds + dh) [ds = static head depth; dh = hydraulic head depth at secondary inlet]Lumber Board Feet (ceiling plank, 2×6 at 16" OC)
Board Feet = 88 × (Surface Area ÷ 100) [factor per standard estimation table for 2×6 at 16" OC]Elevation Difference Between Points
Max Elevation Difference = Highest Corner Elevation − Lowest Corner ElevationCripple Wall Bracing Length
Cripple Wall Bracing = Wall-Above Bracing Length × 1.15