and Detailed Answers
At what depth is shoring required? - correct answer ✔✔1.2m/4ft
Which is not an acceptable method for determining the correct grading for a trench? - correct
answer ✔✔An experienced excavator says it's ok
Which best describes the principle of rain water 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
, 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)
Can an owner builder take out their own electrical permit? - correct answer ✔✔Yes, up to 200A
What is the best way to apply asphalt waterproofing on a foundation? - correct answer
✔✔Spray-on or roll on dry foundation with 2in. below grade
When is the appropriate time to backfill a foundation? - correct answer ✔✔After damp-
proofing
What do you need to do when applying a peel and stick waterproof membrane foundation? -
correct answer ✔✔Use an approved primer before installing
What are gas meter installation requirements? - correct answer ✔✔The distance from the gas
vent to the roof must be greater than the overhang of the roof, nothing can be with in 1m either
side or 4.5m above a gas meter
When do you need to install a handrail or have fall protection? - correct answer ✔✔10ft, 4ft if
no fall protection