On a residential remodeling architectural plan drawn at a scale of 1/4" = 1'-0", a room addition wall measures 5.5 inches on the drawing. What is the actual length of the wall on the job site?
Planning And Estimating
Question · Medium
GFCI inspection
Short
A contractor is framing a 60-foot long straight exterior wall with studs spaced 16 inches on center. Excluding corners and partition intersections, how many studs are required for the wall layout including a starter stud?
A concrete slab for a 20-foot by 15-foot room addition is specified to be 4 inches thick. Allowing a 10% waste factor, how many cubic yards of concrete should be ordered?
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Under California Contractors License Law, which project scope is permissible for a B-2 Residential Remodeling Contractor?
Under California Business and Professions Code Section 7159, what is the maximum down payment a contractor may legally solicit or receive for a Home Improvement Contract (HIC)?
Question · Hard
How deep before you need a trench box?
A homeowner requests an upgraded quartz countertop mid-project during a kitchen remodel. Under California law, when must the Home Improvement Contract Change Order be executed?
How many board feet of lumber are contained in twenty 2-inch by 8-inch joists that are each 12 feet long?
A remodeler is installing drywall on the walls and flat ceiling of a room measuring 12 feet wide by 16 feet long with 8-foot high walls. Assuming no deduction for openings and adding 10% for waste, how many 4-foot by 8-foot drywall sheets are needed?
Under the California Residential Code (CRC), when is a residential remodeling project required to submit engineered structural calculations with the permit application?
OSHA noise limits
A remodeler measures the footprint of a simple gable roof as 30 feet by 40 feet. If the roof has a 4:12 pitch (slope multiplier factor of 1.054), how many squares of roofing material are required including a 10% waste factor? (1 square = 100 sq ft)
Which task represents a Critical Path item during a room addition project schedule?
When estimating tile for a diagonal floor layout during a bathroom remodel, what standard waste factor percentage should be added to net square footage?
Question · Easy
Before making a progress payment to a drywall subcontractor on a residential remodel, which document should the prime B-2 contractor receive to protect against mechanics liens?
Six feet: a hard-hat anthem
A painter needs to apply two coats of paint to 1,400 square feet of wall area. If one gallon of paint covers 350 square feet per coat, how many total gallons of paint are required?
Under California Civil Code, within how many days of first furnishing labor or materials to a residential remodeling job site must a subcontractor serve a Preliminary 20-Day Notice to preserve lien rights?
Under California Government Code Section 4216, how far in advance of commencing any site excavation or trenching must a contractor contact Underground Service Alert (811)?
Job Site Preparation
When disturbing lead-based paint during an interior residential remodel in a pre-1978 home, what is the EPA RRP and Cal/OSHA containment standard for interior floor protection?
Under Cal/OSHA Title 8 Section 1529, when is a contractor required to perform an asbestos survey prior to starting demolition or remodeling work?
According to Cal/OSHA Title 8 Section 1764 and the California Electrical Code, what type of protection is required on all 120-volt, single-phase 15-ampere and 20-ampere temporary power outlets on a residential job site?
During a heavy interior kitchen demolition, what is the best method to protect existing finished hardwood floors in adjacent hallway traffic paths?
When laying out batter boards for a square 90-degree corner of a residential room addition foundation, which set of measurements represents a true 3-4-5 right triangle?
Under California Stormwater Best Management Practices (BMPs) for residential construction, what is the primary purpose of installing sediment fiber rolls (straw wattles) along a sloped job site perimeter?
A contractor plans to remove a load-bearing wall between a kitchen and living room. What critical step must be performed BEFORE cutting any wall studs?
Under the California Green Building Standards Code (CALGreen, Title 24 Part 11), what minimum percentage of non-hazardous construction and demolition (C&D) waste must be recycled or diverted from landfills on residential projects?
Under Cal/OSHA Title 8 Section 1524, what is the minimum required number of toilet facilities for a residential construction job site employing 15 workers?
Under Cal/OSHA Title 8 Section 1541.1, at what trench depth is a protective system (such as shoring, sloping, or benching) mandatory unless the excavation is entirely in stable rock?
According to California Residential Code (CRC) Section R401.3, what is the minimum required slope for finished ground surface grading away from a residential foundation wall?
When operating heavy excavation machinery near existing mature trees slated for protection on a residential remodel, where should temporary protection fencing be placed?
Under California Residential Code (CRC) Section R502.8, what is the maximum depth allowed for a notch cut at the end of a floor joist?
Core Trades Remodeling
According to CRC Section R602.6, what is the maximum diameter allowed for a hole bored through an exterior load-bearing wood stud?
A remodeler is framing a 6-foot wide rough opening for a sliding glass door in a single-story exterior load-bearing wall. What is the minimum header requirement under conventional CRC wood framing tables?
A carpenter is framing a 24-foot interior partition wall spaced 16 inches on center containing one 3-foot interior door opening. How many total studs are required for the wall assembly?
Under California Residential Code Section R311.7.5, what are the maximum allowable riser height and minimum allowable tread depth for residential interior stairways?
When installing structural wood panel sheathing on a designated seismic shear wall under CRC R602.10, what is the standard minimum nailing schedule for panel edges?
What is the primary structural function of ceiling joists or continuous rafter ties installed across the bottom ends of opposing roof rafters?
Under the California Plumbing Code (CPC) Section 708.0, what is the minimum required slope per foot for horizontal drainage piping of 2-inch diameter or less?
According to California Plumbing Code Table 1002.2, what is the maximum allowable horizontal distance from a fixture trap to its qualifying vent for a 1-1/2 inch fixture drain line?
When installing a natural gas water heater in a residential garage under CPC Section 507.13, what minimum height above the floor must all burners and ignition sources be elevated unless the unit is FVIR compliant?
Under CPC Section 609.1, what maximum horizontal support spacing is required for PEX flexible water distribution tubing installed inside wood stud walls?
Under the California Electrical Code (CEC Section 210.20), what is the maximum continuous load permitted on a 20-ampere, 120-volt residential branch circuit?
Under CEC Section 210.8(A), which residential location requires GFCI receptacle protection during a room remodel?
According to CEC Section 210.12, arc-fault circuit-interrupter (AFCI) protection is mandatory for 120-volt residential branch circuits supplying outlets in which room?
According to CEC Table 314.16(B), what volume allowance must be calculated for each #12 AWG copper conductor entering an outlet box?
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