Owner Builder Exam June 5th with complete solution
At what depth of trench is shoring require / At what depth of an excavation is
shoring required?
1.2 M or 4 Feet
How can shoring be done past 4 feet?
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?
experienced contractor says it's ok
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
(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.
Which best describes the design principle of rain water deflection?
Design and construction which stops water from ever entering
What lighting certifications are required in Canada?
CSA safety certification
What grit of sandpaper would get smoothest result? 150-180 etc.
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
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?
3 feet
If you have a 4m ladder, how far from the wall does the base of the ladder have to
be?
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?
25 mm / 1 inch (from BCBC)
When to call for inspections and how to make them efficient as possible?
Group together when possible and call when work is complete
,When is an HRV required?
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."
"Some small dwelling units in mild climates are permitted to supply fresh air through
passive vents [9.32.3.4.(6)], but for most
dwelling units exhaust and supply will require a mechanical fan"
What can you build under the owner-builder HPO process?
Single detached home under a single title. One single dwelling unit in or attached to a
pre-existing building older than 10 years (includes
the addition of a unit to convert a detached home to a duplex, or conversion of a duplex
to triplex, or conversion of non -residential space
to a dwelling unit). One single dwelling unit in or attached to a new non-residential
building (one only per building, such as a caretaker suite
or home built above a family-run store).
12. Who issues permits for a gas fireplace?
Which of the following is not allowed under the HPO owner-builder program?
A new dwelling unit attached to building newer
than 10 years old
Who issues permits for a gas fireplace?
The Safety Authority - Now called Technical Safety BC
Can an owner builder take out his or her own electrical permit?
Yes -work up to 200A is allowed.
What types of Buildings that Can be Wired by Homeowners?
You are entitled to do electrical work in a fully detached residential dwelling that you
occupy or intend to occupy. Your
dwelling may not contain a suite. Fully detached dwellings are buildings that are
designed for single family use only.
You are not allowed to do electrical work in or on any buildings if:
ͻ you do not live in or intend to live in the dwelling,
ͻ any part of the building includes a separate self-contained suite or occupancy,
ͻ the building, or any part of the building is being used to provide rental income, or
ͻ the building, or any part of the building is used for commercial purposes.
What is the best practice to apply asphalt waterproofing on a foundation?
Spray-on or roll on dry foundation with 2inch (max) below grade
What is best practice for waterproofing on foundation?
Spray or roll 12 inch above grade on dry surface
When is the appropriate time to backfill a foundation?
After Damp-proofing
Where does one apply Damp-proofing Material
Exterior damp-proofing shall be applied from finished ground level to the top of the
exterior of the footing.
, What do you need to do when applying a peel and stick waterproof membrane
foundation?
Use an approved primer before installing
The distance from the gas vent to the roof must be...
...greater than the overhang of the roof. Nothing (no gas appliance exhaust vents) within
1m either side and 4.5 meters above. Any powered air intake must not be within 3
meters.
When do you need to install a handrail, or have worker wear fall protection?
10 feet above grade
If a worker has no fall protection, at what height must a handrail be provided?
4 feet
How high does a construction fence around a site needs to be?
6 feet
When installing the footer, it was dug down 2 inches deeper then what the
elevation should be. What needs to happen?
Install the footing form at proper elevation and fill with extra concrete
When installing flashing for a roof valley how much do the asphalt shingles need
to overlap it?
6 inches
What would cause a Blister on a flat roof?
Moisture trapped under roof
Water is backing up in a skylight what do you do to fix it?
Clear drainage
What needs to be done first when starting to install asphalt shingles on a roof?
Install eve protection
What kind of fastener can you use in a wood that had been treated with
chromated copper arsenate (pressure treated wood)?
Lumber manufacturer approved fastener
When should there be insulation under a basement slab?
When there is in-floor heating or above the frost line
How deep should the control joint be in a concrete slab?
1/4 of the slab
What can be done to eliminate differential shrinkage?
Control joints
How can you apply a control joint in concrete without a plastic tool something
etc?
Saw cut
What kind of insulation should be installed under slab?
XPS
Kind of insulation types has the least moisture permeability?
XPS extruded poly styrene
When framing a header of a staircase, the framer needs to know the nailing
pattern. Where does he get it?
Use the BC code section 9 nailing pattern for the header
At what depth of trench is shoring require / At what depth of an excavation is
shoring required?
1.2 M or 4 Feet
How can shoring be done past 4 feet?
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?
experienced contractor says it's ok
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
(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.
Which best describes the design principle of rain water deflection?
Design and construction which stops water from ever entering
What lighting certifications are required in Canada?
CSA safety certification
What grit of sandpaper would get smoothest result? 150-180 etc.
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
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?
3 feet
If you have a 4m ladder, how far from the wall does the base of the ladder have to
be?
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?
25 mm / 1 inch (from BCBC)
When to call for inspections and how to make them efficient as possible?
Group together when possible and call when work is complete
,When is an HRV required?
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."
"Some small dwelling units in mild climates are permitted to supply fresh air through
passive vents [9.32.3.4.(6)], but for most
dwelling units exhaust and supply will require a mechanical fan"
What can you build under the owner-builder HPO process?
Single detached home under a single title. One single dwelling unit in or attached to a
pre-existing building older than 10 years (includes
the addition of a unit to convert a detached home to a duplex, or conversion of a duplex
to triplex, or conversion of non -residential space
to a dwelling unit). One single dwelling unit in or attached to a new non-residential
building (one only per building, such as a caretaker suite
or home built above a family-run store).
12. Who issues permits for a gas fireplace?
Which of the following is not allowed under the HPO owner-builder program?
A new dwelling unit attached to building newer
than 10 years old
Who issues permits for a gas fireplace?
The Safety Authority - Now called Technical Safety BC
Can an owner builder take out his or her own electrical permit?
Yes -work up to 200A is allowed.
What types of Buildings that Can be Wired by Homeowners?
You are entitled to do electrical work in a fully detached residential dwelling that you
occupy or intend to occupy. Your
dwelling may not contain a suite. Fully detached dwellings are buildings that are
designed for single family use only.
You are not allowed to do electrical work in or on any buildings if:
ͻ you do not live in or intend to live in the dwelling,
ͻ any part of the building includes a separate self-contained suite or occupancy,
ͻ the building, or any part of the building is being used to provide rental income, or
ͻ the building, or any part of the building is used for commercial purposes.
What is the best practice to apply asphalt waterproofing on a foundation?
Spray-on or roll on dry foundation with 2inch (max) below grade
What is best practice for waterproofing on foundation?
Spray or roll 12 inch above grade on dry surface
When is the appropriate time to backfill a foundation?
After Damp-proofing
Where does one apply Damp-proofing Material
Exterior damp-proofing shall be applied from finished ground level to the top of the
exterior of the footing.
, What do you need to do when applying a peel and stick waterproof membrane
foundation?
Use an approved primer before installing
The distance from the gas vent to the roof must be...
...greater than the overhang of the roof. Nothing (no gas appliance exhaust vents) within
1m either side and 4.5 meters above. Any powered air intake must not be within 3
meters.
When do you need to install a handrail, or have worker wear fall protection?
10 feet above grade
If a worker has no fall protection, at what height must a handrail be provided?
4 feet
How high does a construction fence around a site needs to be?
6 feet
When installing the footer, it was dug down 2 inches deeper then what the
elevation should be. What needs to happen?
Install the footing form at proper elevation and fill with extra concrete
When installing flashing for a roof valley how much do the asphalt shingles need
to overlap it?
6 inches
What would cause a Blister on a flat roof?
Moisture trapped under roof
Water is backing up in a skylight what do you do to fix it?
Clear drainage
What needs to be done first when starting to install asphalt shingles on a roof?
Install eve protection
What kind of fastener can you use in a wood that had been treated with
chromated copper arsenate (pressure treated wood)?
Lumber manufacturer approved fastener
When should there be insulation under a basement slab?
When there is in-floor heating or above the frost line
How deep should the control joint be in a concrete slab?
1/4 of the slab
What can be done to eliminate differential shrinkage?
Control joints
How can you apply a control joint in concrete without a plastic tool something
etc?
Saw cut
What kind of insulation should be installed under slab?
XPS
Kind of insulation types has the least moisture permeability?
XPS extruded poly styrene
When framing a header of a staircase, the framer needs to know the nailing
pattern. Where does he get it?
Use the BC code section 9 nailing pattern for the header
