Page 1 of 66
2025/2026 OWNER BUILDER EXAM BANK WITH
CURRENTLTY COMPLETE TESTING QUESTIONS AND
DETAILED CORRECT ANSWERS/GUARANTEED
PASS/TOP-RATED A+.
OWNER BUILDER
Ace your Owner-Builder exam with this essential guide,
designed to master construction codes, project management,
and legal responsibilities for overseeing your own build. This
resource delivers practical, scenario-based questions and
verified answers covering permitting, site safety, and
subcontractor coordination.
At what depth of trench is shoring require / At what depth of
an excavation is shoring required? ...... ANSWER ....... 1.2
M or 4 Feet
How can shoring be done past 4 feet? ...... ANSWER .......
This can be done with purpose-built shoring, or, it is
acceptable to
use plywood if it is properly constructed.
Which of the following is not an acceptable method for
determining the correct grading for a trench? ...... ANSWER
....... experienced contractor says it's ok
, Page 2 of 66
Before a worker enters any excavation over 1.2 m (4 ft) in
depth or, while in the excavation,
approaches closer to the side or bank than a distance equal
to the depth of the excavation, the employer must ensure
that the
sides of the excavation are ...... ANSWER ....... (a) sloped
as specified in writing by a qualified registered
professional,
(b) sloped at angles, dependent on soil conditions, which
will ensure stable faces, but in no case, may the slope or
combination
of vertical cut and slope exceed that shown in Figure 20-
1,
(c) benched as shown in Figure 20-2,
(d) supported as specified in writing by a professional
engineer,
(e) supported in accordance with the minimum
requirements of section 20.85, or
(f) supported by manufactured or prefabricated trench
boxes or shoring cages, or other effective means.
, Page 3 of 66
Which best describes the design principle of rain water
deflection? ...... ANSWER ....... Design and construction
which stops water from ever entering
What lighting certifications are required in Canada? ......
ANSWER ....... CSA safety certification
What grit of sandpaper would get smoothest result? 150-180
etc. ...... ANSWER ....... The higher the grade, the
smoother the finish. When finishing a surface, you
typically start with a low grit and
work up to a high grit.
What is the maximum rise in a flight of stairs?
a. The vertical height any flight stairs ...... ANSWER .......
The vertical height shall not exceed 3.7 M
What is the minimum distance that a ladder must extend
above a parapet wall or landing? ...... ANSWER ....... 3
feet
, Page 4 of 66
If you have a 4m ladder, how far from the wall does the base
of the ladder have to be? ...... ANSWER ....... 74 degrees
or 4:1 ratio. So 4 m ladder, needs to be 1 m away.
What heights are end dams to be on window and door
flashings? ...... ANSWER ....... 25 mm / 1 inch (from
BCBC)
When to call for inspections and how to make them efficient
as possible? ...... ANSWER ....... Group together when
possible and call when work is complete
When is an HRV required? ...... ANSWER ....... Almost
always:
"Effective December ϭε, ϮϬϭκ residential dwelling units,
such as houses, apartments and secondary suites will be
required to have
a principal ventilation system that exhausts air from
bathrooms and kitchens and supplies fresh air to bedrooms
and living areas
[ε.ϯϮ.ϯ.ϯ."
2025/2026 OWNER BUILDER EXAM BANK WITH
CURRENTLTY COMPLETE TESTING QUESTIONS AND
DETAILED CORRECT ANSWERS/GUARANTEED
PASS/TOP-RATED A+.
OWNER BUILDER
Ace your Owner-Builder exam with this essential guide,
designed to master construction codes, project management,
and legal responsibilities for overseeing your own build. This
resource delivers practical, scenario-based questions and
verified answers covering permitting, site safety, and
subcontractor coordination.
At what depth of trench is shoring require / At what depth of
an excavation is shoring required? ...... ANSWER ....... 1.2
M or 4 Feet
How can shoring be done past 4 feet? ...... ANSWER .......
This can be done with purpose-built shoring, or, it is
acceptable to
use plywood if it is properly constructed.
Which of the following is not an acceptable method for
determining the correct grading for a trench? ...... ANSWER
....... experienced contractor says it's ok
, Page 2 of 66
Before a worker enters any excavation over 1.2 m (4 ft) in
depth or, while in the excavation,
approaches closer to the side or bank than a distance equal
to the depth of the excavation, the employer must ensure
that the
sides of the excavation are ...... ANSWER ....... (a) sloped
as specified in writing by a qualified registered
professional,
(b) sloped at angles, dependent on soil conditions, which
will ensure stable faces, but in no case, may the slope or
combination
of vertical cut and slope exceed that shown in Figure 20-
1,
(c) benched as shown in Figure 20-2,
(d) supported as specified in writing by a professional
engineer,
(e) supported in accordance with the minimum
requirements of section 20.85, or
(f) supported by manufactured or prefabricated trench
boxes or shoring cages, or other effective means.
, Page 3 of 66
Which best describes the design principle of rain water
deflection? ...... ANSWER ....... Design and construction
which stops water from ever entering
What lighting certifications are required in Canada? ......
ANSWER ....... CSA safety certification
What grit of sandpaper would get smoothest result? 150-180
etc. ...... ANSWER ....... The higher the grade, the
smoother the finish. When finishing a surface, you
typically start with a low grit and
work up to a high grit.
What is the maximum rise in a flight of stairs?
a. The vertical height any flight stairs ...... ANSWER .......
The vertical height shall not exceed 3.7 M
What is the minimum distance that a ladder must extend
above a parapet wall or landing? ...... ANSWER ....... 3
feet
, Page 4 of 66
If you have a 4m ladder, how far from the wall does the base
of the ladder have to be? ...... ANSWER ....... 74 degrees
or 4:1 ratio. So 4 m ladder, needs to be 1 m away.
What heights are end dams to be on window and door
flashings? ...... ANSWER ....... 25 mm / 1 inch (from
BCBC)
When to call for inspections and how to make them efficient
as possible? ...... ANSWER ....... Group together when
possible and call when work is complete
When is an HRV required? ...... ANSWER ....... Almost
always:
"Effective December ϭε, ϮϬϭκ residential dwelling units,
such as houses, apartments and secondary suites will be
required to have
a principal ventilation system that exhausts air from
bathrooms and kitchens and supplies fresh air to bedrooms
and living areas
[ε.ϯϮ.ϯ.ϯ."
