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Order of inspections - Correct Answer 1: forms, basement and crawlspace 2: Plumbing, dampproofing, foundation drainage , sanitary sewer, storm sewer, sump, water service 3: plumbing, electrical, mechanical, gas 4: framing inspection 5: insulation and vapour barrier 6: rainscreen/exterior finishs, drywall 7: building envelop inspection 8: final inspection Which is not an acceptable method for determining the correct grading for a trench? - Correct Answer An experienced excavator says it's ok At what depth is shoring required? - Correct Answer 1.2m/4ft Which best describes the principle of rain waterterm-0 deflection? - Correct Answer Design and construction that prevents water from ever entering What lighting safety certifications are required in Canada? - Correct Answer CSA safety certification What grit of sandpaper would get the smoothest result? - Correct Answer Higher grit with get a smoother finish What is the maximum rise in a flight of stairs? - Correct Answer The vertical height of any flight of stairs should not exceed 3.7m What is the minimum distance that a ladder must extend above a parapet wall or landing? - Correct Answer 3ft What heights are end dams to be on windows and door flashings? - Correct Answer 25mm/1 inch End dam use - Correct Answer Stop water from coming in When should you call for inspectors to make them efficient as possible? - Correct Answer Group inspectors together when possible and call when work is complete When is an HRV required? - Correct Answer Almost always What can you build under the owner-builder HPO process? - Correct Answer Single detached home under a single title. Single dwelling attached to pre- existing building older than 10 years. Single dwelling attached to a new non- residential building. Who issues permits for a gas fireplace? - Correct Answer Safety Authority (call Technical Safe BC) What would cause a blister on a flat roof? - Correct Answer Moisture trapped under roof Water is backing up in a skylight, what do you do to fix it? - Correct Answer Clear drainage What needs to be done first when starting to install asphalt shingles on a roof? - Correct Answer Install eve protection What kind of fastener can you use in a wood that has been treated with chromated copper arsenate? - Correct Answer Lumber manufacturer approved fastener When should there be insulation under a basement slab? - Correct Answer When there is in floor heating How deep should the control joint be in a concrete slab? - Correct Answer 1/4 of the slab What kind of insulation should be installed under slab? - Correct Answer XPS What kind of insulation has the least moisture permeability? - Correct Answer XPS When framing a header of a staircase where does the framer get the nailing pattern? - Correct Answer Use the BC code section 9 nailing pattern What document must the owner submit to WorkSafe BC prior to starting construction? - Correct Answer Notice of project What is the nailing/screw pattern for backer board? - Correct Answer Manufacturer approved pattern When installing a bi-fold door the door bings at the side jamb on the top. What can be done to fix this? - Correct Answer Adjust the top pivot point What should be done when joist and beams have contact with bare concrete walls? - Correct Answer Use pressure treated wood and leave 12mm air space What is the minimum depth for a beam support? - Correct Answer Not less than 89mm When is a footing required? - Correct Answer Under walls, pilasters, columns, piers, fireplaces and chimneys that bear on soil or rock When is a footing inspection conducted? - Correct Answer When the forms and steel reinforcing are complete, but prior to placing any concrete What is the moisture permeability of 6mm poly? - Correct Answer 0.03 US perm or 1.7 ng When can WorkSafe BC come to your construction site? - Correct Answer Anytime What are the ventilation fan requirements? - Correct Answer One exhaust fan in every kitchen and every bathroom and an additional principle ventilation exhaust fan for the whole dwelling What is the appropriate location for a water heater? - Correct Answer A water heater should be located close to the greatest area of hot water usage and should not be placed where water lines could freeze What is the regulation for insulation between the main home and garage? - Correct Answer The house must have insulation and vapour barrier as though the garage were exterior space. Air barrier and insulation is required for any wall or ceiling that is between the garage and living space. When should you call for electrical inspections? - Correct Answer Before wiring is concealed or connected to a supply. What must you do if you fail and electrical inspection? - Correct Answer Fix the problem and call for re-inspection. When do you need a chimney saddle? - Correct Answer When the upper side width of the chimney is 750mm or more. What must you do before starting to build? - Correct Answer Notify WorkSafe BC at least 24 hours in advance How high must a ladder protrude above a 4' trench? - Correct Answer 3' Why keep a worksite free of debris? - Correct Answer To protect inspectors and provide a safe and efficient work space What shows hidden objects in blueprints? - Correct Answer Dashed lines What square is best to use to transfer and 35 degree slope from plans to work? - Correct Answer A sliding T-bevel How much support is needed for floor joists into footing? - Correct Answer 1.5" min for floor joists. For beams 3.5" Why must concrete cure? - Correct Answer To reach peak strength What is one method that can be used to prevent new concrete from freezing in cold weather? - Correct Answer Insulated tarps When should you order and inspection for an external sewer line? - Correct Answer When the pipe in on 6" of sand and before backfill When should insulation be inspected? - Correct Answer After insulation is installed but before covering When can you put up exterior house wrap? - Correct Answer After framing inspection but before insulating What must a gas fitter do when a gas system installation has been completed? - Correct Answer Affix a tag with their name, certificate number, type of appliance and date Why is the dam used on window flashing? - Correct Answer To hinder water flow behind siding etc. What to do if window top is 16" down from a 24" overhang? - Correct Answer Install header flashing Worst underlayment for bathroom tile floor? - Correct Answer 1/4" particle board Best type of flashing to use? - Correct Answer Will last the lifetime of the surrounding materials Hood fans for ranges should be based on? - Correct Answer The air exhaust volume, intake air volume needed, and clearance restrictions Height of railings above 2’ up? - Correct Answer 36" if interior or 42" if exterior; >=36" exterior up to 5'11'; above 6' it's >=42" Stair rise max - Correct Answer 200mm Sheathing should be - Correct Answer Staggered If subfloor joints are faulty - Correct Answer Add blocking Distance between external in and out vents? (HRV) - Correct Answer 6° Window CSA coding does not designate? - Correct Answer Type Can owner builder pull a permit for plumbing? - Correct Answer Yes; owner builders can pull a plumbing permit provided they do not possess a tradesman qualification certification as a plumber. Exterior wraps are WRB - Correct Answer Water resistant barrier, They are water resistant to bulk water (rain) but will allow moisture to diffuse through (so water in the wall can escape to the exterior Vapour barriers - Correct Answer Vapour barriers, which go on the warm side of the wall, should have a low permeability (1.7 Sl perms). A typical VB is poly. *Note that a house wrap / WRB is not vapour proof. Basically, mixing and matching physical qualities of barrier materials. Something like this. Which state is note true? - Correct Answer b. Barrier materials only provide one function each, air, moisture or vapour Which product is used before applying latex paint to new drywall? - Correct Answer Water based primer sealer Some high efficiency windows have a gas injected between the panes. What is the gas? - Correct Answer Argon Storage of materials that are hazardous, are combustible, corrosive, toxic etc. should be safely stored. Where can they be stored - Correct Answer In their approved containers inside a locked room Best kind of paint for kitchen - Correct Answer Water based What would you do if your plumbing inspection failed? - Correct Answer Stop work, fix mistakes, call inspection again What documents are required from WCB when hiring a sub-contractor? - Correct Answer Clearance letters How do you dry concrete if there is a sudden drop in temperature? Or to help concrete cure - Correct Answer Cover with tarp What are the requirements for a hand rail? - Correct Answer Must be continuous on one side and ended in a way that won't impede usage What is the required headroom over stairs? - Correct Answer 6.4’ When using spray foam insulation as a vapour barrier - Correct Answer It must be thick enough to meet vapour barrier requirements 1 in - Correct Answer 25.4 mm 1 ft - Correct Answer 0.3048 m Why is clay tile roof not a good option for the west coast? - Correct Answer Dangerous for earthquakes When balcony membrane is used, what is the minimum slope percentage? - Correct Answer 2% By properly spacing decking, some allowance for wood movement, drainage, and drying is provided. What is the minimum spacing of deck boards? - Correct Answer 1/8' Most efficient insulation for framed walls? - Correct Answer Batt insulation How many jobs can a sole sub-contractor do before they must be licensed builder and provide home warranty insurance? - Correct Answer 2 jobs What is the "live load" capacity on a floor? - Correct Answer 2.4 kPa Balconies, decks, and other platforms must be designed to carry? - Correct Answer 1.9 kPa; Attic load is 0.35 kPa What is required for an interior access attic door? - Correct Answer Weather Stripping and Insulation What must you remember when framing in a direct vent gas fireplace? - Correct Answer Leave clearance between the unit and the framing What must a principle of a farm corporation do to receive an HPO permit? - Correct Answer Must file special resolution not to sell interest in land for one year When do you call for a framing inspection? - Correct Answer When the framing is complete, and HVAC and plumbing are roughed in When can you apply for an occupancy permit? - Correct Answer Upon substantial completion If you omit the edge covering for a concrete tile roof, what will happen? - Correct Answer Edge of tiles no longer protected against corrosion Which of the following best describes the third law of thermodynamics? - Correct Answer Heat flows from an area of high heat to low heat For differential grades, what is the minimum run for step footings? - Correct Answer 2ft When you build footing on sloped land, what do you use? - Correct Answer Step footing Nail pattern for vertical and horizontal application of panel-type sheathing? - Correct Answer 6" on edge; 12" elsewhere What is the maximum perm rating allowed for an exterior wall assembly? - Correct Answer 60ng (1.05) Where do you vent Radon gas? - Correct Answer Wall or roof The assessment value of your home goes up by 150% in the first year what do you do? - Correct Answer Call BC assessment How many days to file a lien - Correct Answer 45 days How do you make sure the house is square? - Correct Answer By 3 4 5, measure and use pythagoras Why is ICF or insulated concrete form used? - Correct Answer Better R-value Best way to make a duct energy efficient - Correct Answer Tape Joints and insulate Why shouldn't both concrete and wood be used together when framing? - Correct Answer They expand and contract differently What is true of metal roofing material? - Correct Answer Lasts 40 years How must roofing be installed around a mortar chimney - Correct Answer Install roofing material and step flashing alternately How many years on leased land to get accepted for owner builder authorization? - Correct Answer 15 years What slope of a roof can clay cladding go on? - Correct Answer 1:2, 50% slope What is not a proper roofing material? - Correct Answer Bitumen membrane R value is the capacity of a material to resist what kind of flow? - Correct Answer Heat What happens if end-closures are not installed on a concrete tile roof? - Correct Answer Snow and water can/will easily enter roof space and damage is likely to occur Where is safety glass required by code - Correct Answer sliding glass doors Question about which regulation most relevant to the safety of gas equipment installation? - Correct Answer Safety Standards Act Max HPA penalty - Correct Answer $25 000 Which of the following statements about direct vent gas fireplaces is false? - Correct Answer Gas fireplaces have an adjustable air damper What type of drywall is needed as a fire barrier between a garage and the floor above? - Correct Answer 5/8 drywall Joining EPS sheets - Correct Answer With compatible glue or approved tape What are the minimum strengths (in Mpa) for concrete - Correct Answer Footings, walls, foundations 15 Mpa Interior Flatwork 20 Mpa Garages, carports, exterior32 Mpa What is the maximum allowable rise in millimeters for a stair in a dwelling unit? - Correct Answer 200mm At what depth of excavation is a ladder required to be provided? - Correct Answer 4ft What kind of window has life attachment/hinge - Correct Answer Casement Most energy efficient movable window - Correct Answer Hinged The performance of a specific task in a bar chart is referred to as - Correct Answer Schedule Under the builder's act what percentage of money can an owner hold back? - Correct Answer 10% When does the statutory protection provision not apply to an owner-built home? - Correct Answer When there is a policy of home warranty in place for owner-built home How much do asphalt shingles need to overlap the flashing for a roof valley - Correct Answer 6" Horizontal security blocking required on side(s) of framed doors? - Correct Answer 2 studs 
