At what depth of trench is shoring require / At what depth of an excavation is shoring re-
quired? - 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
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 reg-
istered 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 ef-
fective means.
Which best describes the design principle of rain water deflection? - ANSWER Design and
construction which stops water from ever entering
1
,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
If you have a 4m ladder, how far from the wall does the base of the ladder have to be? - AN-
SWER 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."
"Some small dwelling units in mild climates are permitted to supply fresh air through passive
vents [9.32.3.4.(6)], but for most
2
,dwelling units exhaust and supply will require a mechanical fan"
What can you build under the owner-builder HPO process? - ANSWER 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? - ANSWER
A new dwelling unit attached to building *newer*
than 10 years old
Who issues permits for a gas fireplace? - ANSWER The Safety Authority - Now called
Technical Safety BC
Can an owner builder take out his or her own electrical permit? - ANSWER Yes -work up
to 200A is allowed.
What types of Buildings that Can be Wired by Homeowners? - ANSWER You are entitled
to do electrical work in a fully detached residential dwelling that you occupy or intend to oc-
cupy. 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,
3
, 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? - ANSWER
Spray-on or roll on dry foundation with 2inch (max) below grade
What is best practice for waterproofing on foundation? - ANSWER Spray or roll 12 inch
above grade on dry surface
When is the appropriate time to backfill a foundation? - ANSWER After Damp-proofing
Where does one apply Damp-proofing Material - ANSWER 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?
- ANSWER Use an approved primer before installing
The distance from the gas vent to the roof must be... - ANSWER ...greater than the over-
hang 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? - ANSWER
10 feet above grade
If a worker has no fall protection, at what height must a handrail be provided? - ANSWER
4 feet
How high does a construction fence around a site needs to be? - ANSWER 6 feet
4
quired? - 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
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 reg-
istered 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 ef-
fective means.
Which best describes the design principle of rain water deflection? - ANSWER Design and
construction which stops water from ever entering
1
,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
If you have a 4m ladder, how far from the wall does the base of the ladder have to be? - AN-
SWER 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."
"Some small dwelling units in mild climates are permitted to supply fresh air through passive
vents [9.32.3.4.(6)], but for most
2
,dwelling units exhaust and supply will require a mechanical fan"
What can you build under the owner-builder HPO process? - ANSWER 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? - ANSWER
A new dwelling unit attached to building *newer*
than 10 years old
Who issues permits for a gas fireplace? - ANSWER The Safety Authority - Now called
Technical Safety BC
Can an owner builder take out his or her own electrical permit? - ANSWER Yes -work up
to 200A is allowed.
What types of Buildings that Can be Wired by Homeowners? - ANSWER You are entitled
to do electrical work in a fully detached residential dwelling that you occupy or intend to oc-
cupy. 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,
3
, 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? - ANSWER
Spray-on or roll on dry foundation with 2inch (max) below grade
What is best practice for waterproofing on foundation? - ANSWER Spray or roll 12 inch
above grade on dry surface
When is the appropriate time to backfill a foundation? - ANSWER After Damp-proofing
Where does one apply Damp-proofing Material - ANSWER 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?
- ANSWER Use an approved primer before installing
The distance from the gas vent to the roof must be... - ANSWER ...greater than the over-
hang 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? - ANSWER
10 feet above grade
If a worker has no fall protection, at what height must a handrail be provided? - ANSWER
4 feet
How high does a construction fence around a site needs to be? - ANSWER 6 feet
4
