BC Owner Builder Authorization Exam
(2026/2027) – British Columbia Owner
Builder Licensing | 70-MCQ Actual Exam
Preparation Guide|| GRADED A+||
LATEST UPDATE
Order of inspections -CORRECTANSWER 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? -
CORRECTANSWER An experienced excavator says it's ok
At what depth is shoring required? -CORRECTANSWER 1.2m/4ft
,Which best describes the principle of rain waterterm-0 deflection? -CORRECTANSWER
Design and construction that prevents water from ever entering
What lighting safety certifications are required in Canada? -CORRECTANSWER CSA
safety certification
What grit of sandpaper would get the smoothest result? -CORRECTANSWER Higher
grit with get a smoother finish
What is the maximum rise in a flight of stairs? -CORRECTANSWER 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? -CORRECTANSWER 3ft
What heights are end dams to be on windows and door flashings? -
CORRECTANSWER 25mm/1 inch
End dam use -CORRECTANSWER Stop water from coming in
When should you call for inspectors to make them efficient as possible? -
CORRECTANSWER Group inspectors together when possible and call when work is
complete
, When is an HRV required? -CORRECTANSWER Almost always
What can you build under the owner-builder HPO process? -CORRECTANSWER
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? -CORRECTANSWER Safety Authority (call
Technical Safe BC)
Can an owner builder take out their own electrical permit? -CORRECTANSWER Yes,
up to 200A
What is the best way to apply asphalt waterproofing on a foundation? -
CORRECTANSWER Spray-on or roll on dry foundation with 2in. below grade
When is the appropriate time to backfill a foundation? -CORRECTANSWER After
damp-proofing
What do you need to do when applying a peel and stick waterproof membrane
foundation? -CORRECTANSWER Use an approved primer before installing
(2026/2027) – British Columbia Owner
Builder Licensing | 70-MCQ Actual Exam
Preparation Guide|| GRADED A+||
LATEST UPDATE
Order of inspections -CORRECTANSWER 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? -
CORRECTANSWER An experienced excavator says it's ok
At what depth is shoring required? -CORRECTANSWER 1.2m/4ft
,Which best describes the principle of rain waterterm-0 deflection? -CORRECTANSWER
Design and construction that prevents water from ever entering
What lighting safety certifications are required in Canada? -CORRECTANSWER CSA
safety certification
What grit of sandpaper would get the smoothest result? -CORRECTANSWER Higher
grit with get a smoother finish
What is the maximum rise in a flight of stairs? -CORRECTANSWER 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? -CORRECTANSWER 3ft
What heights are end dams to be on windows and door flashings? -
CORRECTANSWER 25mm/1 inch
End dam use -CORRECTANSWER Stop water from coming in
When should you call for inspectors to make them efficient as possible? -
CORRECTANSWER Group inspectors together when possible and call when work is
complete
, When is an HRV required? -CORRECTANSWER Almost always
What can you build under the owner-builder HPO process? -CORRECTANSWER
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? -CORRECTANSWER Safety Authority (call
Technical Safe BC)
Can an owner builder take out their own electrical permit? -CORRECTANSWER Yes,
up to 200A
What is the best way to apply asphalt waterproofing on a foundation? -
CORRECTANSWER Spray-on or roll on dry foundation with 2in. below grade
When is the appropriate time to backfill a foundation? -CORRECTANSWER After
damp-proofing
What do you need to do when applying a peel and stick waterproof membrane
foundation? -CORRECTANSWER Use an approved primer before installing
