BC Owner Builder EXAM STUDY GUIDE
2026/2027 ACCURATE QUESTIONS WITH
CORRECT DETAILED SOLUTIONS ||
100% GUARANTEED PASS
<NEWEST VERSION>
1. Order of inspections - 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
2. Which is not an acceptable method for determining the correct grading for a
trench? - ANSWER ✔ An experienced excavator says it's ok
3. At what depth is shoring required? - ANSWER ✔ 1.2m/4ft
4. Which best describes the principle of rain waterterm-0 deflection? -
ANSWER ✔ Design and construction that prevents water from ever
entering
5. What lighting safety certifications are required in Canada? - ANSWER ✔
CSA safety certification
6. What grit of sandpaper would get the smoothest result? - ANSWER ✔
Higher grit with get a smoother finish
7. What is the maximum rise in a flight of stairs? - ANSWER ✔ The vertical
height of any flight of stairs should not exceed 3.7m
,8. What is the minimum distance that a ladder must extend above a parapet
wall or landing? - ANSWER ✔ 3ft
9. What is the best way to make an expansion joint without plastic strip or
tooling? - ANSWER ✔ Sawing
10.Where a roof structure requires ventilation, where can a vent for air flow
NOT be placed? - ANSWER ✔ Fascia
11.The owner-builder's brother in law is a licensed builder. What are the
restrictions regarding his involvement? - ANSWER ✔ Can't be general
contractor
12.What barrier must be placed between concrete form and base plate? -
ANSWER ✔ Sill gasket
13.What is the primary reason to use a pre-manufactured cap shingle? -
ANSWER ✔ Better wind resistance
14.When roof trusses turn up, how do you know what order they go? -
ANSWER ✔ Chart/pictogram is delivered with them which shows where
they go (and they are also individually labelled)
15.Most heat loss is thru - ANSWER ✔ Windows
16.Having a big range hood, might cause problems with pressurization,
heating...? - ANSWER ✔ Depressurization (negative pressure)
17.Best kind of paint for kitchen - ANSWER ✔ Water based
18.What would you do if your plumbing inspection failed? - ANSWER ✔
Stop work, fix mistakes, call inspection again
19.What documents are required from WCB when hiring a sub-contractor? -
ANSWER ✔ Clearance letters
,20.How do you dry concrete if there is a sudden drop in temperature? Or to help
concrete cure - ANSWER ✔ Cover with tarp
21.Storage of materials that have a WHMIS label should be in?
a. In their approved containers in a locker or locked room
b. In their approved containers secured outside
c. Inside an isolated room in an off-site building
d. At your tool crib - ANSWER ✔ a
22.What is used to prevent mitre joints from opening?
a. Air dried lumber and sufficient glue
b. Air dried lumber and biscuits
c. Biscuits and silicone
d. Kiln dried lumber or engineered material and sufficient glue -
ANSWER ✔ c
23.Where a roof structure requires ventilation, where can a vent for air flow
NOT be?
a. Gable
b. Roof
c. Soffits
d. Fascia - ANSWER ✔ d
24.What barrier must be placed between concrete form and base plate?
a. Sill Gasket
b. O-Ring
c. Flashing
d. No barrier required - ANSWER ✔ a
25.What is the primary reason to use a pre-manufactured cap shingle?
a. Better aesthetic
b. Cheaper
c. Better wind resistance
d. Thinner and easier to bend - ANSWER ✔ c
26.When roof trusses turn up, how do you know what order they go?
a. They are individually labeled and include a chart
b. They only fit one way so it is obvious
c. All parts are the same and so no need to distinguish
, d. The manufacturer will send a technician - ANSWER ✔ a
27.The most heat loss is through?
a. Roof
b. Floor
c. Windows
d. Well - ANSWER ✔ c
28.The best kind of paint to be used on a kitchen is?
a. Oil based paint
b. Acrylic paints
c. Water based paints
d. Other - ANSWER ✔ c
29.What would you do if your plumbing inspection failed?
a. Stop work, fix mistakes, and call inspection again
b. Continue working and forget inspection
c. Continue working and call inspector at the end
d. Call another plumber and have them act as inspector - ANSWER ✔
a
30.When hiring a sub-contractor, what documents are required from WCB?
a. Cover Letter
b. Permanent Residence or Passport
c. Clearance Letters
d. Red Seal Certificate - ANSWER ✔ c
31.If there is a sudden drop in temperature, how do you dry concrete?
a. Use a large air dryer
b. Cover with a large tarp
c. Temperature will not impact concrete drying
d. Re-pour the concrete - ANSWER ✔ b
32.What are requirements for a hand rail?
a. Must be made in an ergonomic way
b. Usable for right handed people
c. Must be continues on one side and ended in a way that won't impede
usage
d. Continues on each side - ANSWER ✔ c
2026/2027 ACCURATE QUESTIONS WITH
CORRECT DETAILED SOLUTIONS ||
100% GUARANTEED PASS
<NEWEST VERSION>
1. Order of inspections - 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
2. Which is not an acceptable method for determining the correct grading for a
trench? - ANSWER ✔ An experienced excavator says it's ok
3. At what depth is shoring required? - ANSWER ✔ 1.2m/4ft
4. Which best describes the principle of rain waterterm-0 deflection? -
ANSWER ✔ Design and construction that prevents water from ever
entering
5. What lighting safety certifications are required in Canada? - ANSWER ✔
CSA safety certification
6. What grit of sandpaper would get the smoothest result? - ANSWER ✔
Higher grit with get a smoother finish
7. What is the maximum rise in a flight of stairs? - ANSWER ✔ The vertical
height of any flight of stairs should not exceed 3.7m
,8. What is the minimum distance that a ladder must extend above a parapet
wall or landing? - ANSWER ✔ 3ft
9. What is the best way to make an expansion joint without plastic strip or
tooling? - ANSWER ✔ Sawing
10.Where a roof structure requires ventilation, where can a vent for air flow
NOT be placed? - ANSWER ✔ Fascia
11.The owner-builder's brother in law is a licensed builder. What are the
restrictions regarding his involvement? - ANSWER ✔ Can't be general
contractor
12.What barrier must be placed between concrete form and base plate? -
ANSWER ✔ Sill gasket
13.What is the primary reason to use a pre-manufactured cap shingle? -
ANSWER ✔ Better wind resistance
14.When roof trusses turn up, how do you know what order they go? -
ANSWER ✔ Chart/pictogram is delivered with them which shows where
they go (and they are also individually labelled)
15.Most heat loss is thru - ANSWER ✔ Windows
16.Having a big range hood, might cause problems with pressurization,
heating...? - ANSWER ✔ Depressurization (negative pressure)
17.Best kind of paint for kitchen - ANSWER ✔ Water based
18.What would you do if your plumbing inspection failed? - ANSWER ✔
Stop work, fix mistakes, call inspection again
19.What documents are required from WCB when hiring a sub-contractor? -
ANSWER ✔ Clearance letters
,20.How do you dry concrete if there is a sudden drop in temperature? Or to help
concrete cure - ANSWER ✔ Cover with tarp
21.Storage of materials that have a WHMIS label should be in?
a. In their approved containers in a locker or locked room
b. In their approved containers secured outside
c. Inside an isolated room in an off-site building
d. At your tool crib - ANSWER ✔ a
22.What is used to prevent mitre joints from opening?
a. Air dried lumber and sufficient glue
b. Air dried lumber and biscuits
c. Biscuits and silicone
d. Kiln dried lumber or engineered material and sufficient glue -
ANSWER ✔ c
23.Where a roof structure requires ventilation, where can a vent for air flow
NOT be?
a. Gable
b. Roof
c. Soffits
d. Fascia - ANSWER ✔ d
24.What barrier must be placed between concrete form and base plate?
a. Sill Gasket
b. O-Ring
c. Flashing
d. No barrier required - ANSWER ✔ a
25.What is the primary reason to use a pre-manufactured cap shingle?
a. Better aesthetic
b. Cheaper
c. Better wind resistance
d. Thinner and easier to bend - ANSWER ✔ c
26.When roof trusses turn up, how do you know what order they go?
a. They are individually labeled and include a chart
b. They only fit one way so it is obvious
c. All parts are the same and so no need to distinguish
, d. The manufacturer will send a technician - ANSWER ✔ a
27.The most heat loss is through?
a. Roof
b. Floor
c. Windows
d. Well - ANSWER ✔ c
28.The best kind of paint to be used on a kitchen is?
a. Oil based paint
b. Acrylic paints
c. Water based paints
d. Other - ANSWER ✔ c
29.What would you do if your plumbing inspection failed?
a. Stop work, fix mistakes, and call inspection again
b. Continue working and forget inspection
c. Continue working and call inspector at the end
d. Call another plumber and have them act as inspector - ANSWER ✔
a
30.When hiring a sub-contractor, what documents are required from WCB?
a. Cover Letter
b. Permanent Residence or Passport
c. Clearance Letters
d. Red Seal Certificate - ANSWER ✔ c
31.If there is a sudden drop in temperature, how do you dry concrete?
a. Use a large air dryer
b. Cover with a large tarp
c. Temperature will not impact concrete drying
d. Re-pour the concrete - ANSWER ✔ b
32.What are requirements for a hand rail?
a. Must be made in an ergonomic way
b. Usable for right handed people
c. Must be continues on one side and ended in a way that won't impede
usage
d. Continues on each side - ANSWER ✔ c
