1 | Page
BC Owner Builder Exam Questions and
Correct Answers
If workers are required to enter a trench over 1.2 m (4 ft) deep,
the safe point of entry and exit must be located:
a) within 8 m (25 ft) of the workers and the excavation must be
safely supported or sloped to the entry and exit location.
b) within 5 m (16 ft) of the workers and the excavation must be
safely supported or sloped to the entry and exit location.
c) within 7 m (23 ft) of the workers and the excavation must be
safely supported or sloped to the entry and exit location.
d) within 10 m (32 ft) of the workers and the excavation must be
safely supported or sloped to the entry and exit location. Ans: — a
If workers are required to enter a trench over 1.2 m (4 ft) deep, the
safe point of entry and exit must be located:
a) within 5 m (16 ft) of the workers and the excavation must be
safely supported or sloped to the entry and exit location.
b) within 7 m (23 ft) of the workers and the excavation must be
safely supported or sloped to the entry and exit location.
c) within 8 m (25 ft) of the workers and the excavation must be
safely supported or sloped to the entry and exit location.
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d) within 10 m (32 ft) of the workers and the excavation must be
safely supported or sloped to the entry and exit location. Ans: — c
What is the design and construction that prevents
water from ever entering?
a) Principle of driving rain deterrent
b) Principle of driving rain deflection
c) Principle of rainwater deterrent
d) Principle of rainwater deflection Ans: — d
The higher grit number is equivalent to:
a) a finer abrasive, which creates smoother surface
finishes.
b) a finer abrasive, which creates a rougher surface finish.
c) a rougher abrasive, which creates smoother surface
finishes.
d) a rougher abrasive, which creates a rougher surface finish. Ans:
—a
The vertical height of any flight of stairs shall not exceed
a) 4.5 m or 15 ft
b) 3.7 m or 12 ft
c) 3.5 m or 11.5 ft
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d) 2.8 m or 9 ft Ans: — b
Extend the ladder at least ____ above the landing platform or the
point of support.
a) 1.5 m (5 ft)
b) 2 m (6.3 ft)
c) 1 m (3 ft)
d) .5 m (1.5 ft) Ans: — c
for every four feet in height, the base of the ladder should be
moved ___ foot out from the wall or structure. Ans: — 1
Use a ___ ratio for setting ladders (approximately 75 degrees) to
determine how far out the base of the ladder should be moved in
relation to the height of the ladder against the wall. Ans: — 4:1
To be effective, mechanical ventilation systems must be able to
a) Distribute ventilation air to most rooms of the house and
exhaust air from kitchens, bathrooms, and laundry rooms.
b) Exhaust air from kitchens, bathrooms, and laundry rooms.
c) Distribute ventilation air to bedrooms and common spaces
d) Distribute ventilation air to most bedrooms and exhaust air
from bathrooms and laundry rooms. Ans: — a
____________ performs routine remote and physical inspections on
gas work and gas equipment in commercial, industrial, and
residential premises.
a) Worksafe BC
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b) Regional District Building Inspectors
c) Technical Safety BC Ans: — c
If your property is in Technical Safety BC jurisdiction, homeowners
can apply for an electrical homeowner permit.
T or F? Ans: — T
Shingles should overlap the valley lining by at least ____
a) 12 inches.
b) 6 inches.
c) 2 inches.
d) 5 inches. Ans: — b
The moisture trapped within the membranes will form bubbles on
the surface of the flat roof. As moisture builds up on the roof, the
bubbles will eventually grow and pop, forming a blister. The
moisture is formed by ___________
a) excessive heat and poor attic ventilation.
b) excessive cold and poor attic ventilation.
c) excessive heat and excessive attic ventilation.
d) excessive cold and excessive attic ventilation. Ans: — a
If any condensation forms on the inside of your skylight, the weep
holes allow the water to drain out of your home. The condensation
can end up dripping into your home instead if ____
a) too many holes are present.
© 2025 All rights reserved
BC Owner Builder Exam Questions and
Correct Answers
If workers are required to enter a trench over 1.2 m (4 ft) deep,
the safe point of entry and exit must be located:
a) within 8 m (25 ft) of the workers and the excavation must be
safely supported or sloped to the entry and exit location.
b) within 5 m (16 ft) of the workers and the excavation must be
safely supported or sloped to the entry and exit location.
c) within 7 m (23 ft) of the workers and the excavation must be
safely supported or sloped to the entry and exit location.
d) within 10 m (32 ft) of the workers and the excavation must be
safely supported or sloped to the entry and exit location. Ans: — a
If workers are required to enter a trench over 1.2 m (4 ft) deep, the
safe point of entry and exit must be located:
a) within 5 m (16 ft) of the workers and the excavation must be
safely supported or sloped to the entry and exit location.
b) within 7 m (23 ft) of the workers and the excavation must be
safely supported or sloped to the entry and exit location.
c) within 8 m (25 ft) of the workers and the excavation must be
safely supported or sloped to the entry and exit location.
© 2025 All rights reserved
, 2 | Page
d) within 10 m (32 ft) of the workers and the excavation must be
safely supported or sloped to the entry and exit location. Ans: — c
What is the design and construction that prevents
water from ever entering?
a) Principle of driving rain deterrent
b) Principle of driving rain deflection
c) Principle of rainwater deterrent
d) Principle of rainwater deflection Ans: — d
The higher grit number is equivalent to:
a) a finer abrasive, which creates smoother surface
finishes.
b) a finer abrasive, which creates a rougher surface finish.
c) a rougher abrasive, which creates smoother surface
finishes.
d) a rougher abrasive, which creates a rougher surface finish. Ans:
—a
The vertical height of any flight of stairs shall not exceed
a) 4.5 m or 15 ft
b) 3.7 m or 12 ft
c) 3.5 m or 11.5 ft
© 2025 All rights reserved
, 3 | Page
d) 2.8 m or 9 ft Ans: — b
Extend the ladder at least ____ above the landing platform or the
point of support.
a) 1.5 m (5 ft)
b) 2 m (6.3 ft)
c) 1 m (3 ft)
d) .5 m (1.5 ft) Ans: — c
for every four feet in height, the base of the ladder should be
moved ___ foot out from the wall or structure. Ans: — 1
Use a ___ ratio for setting ladders (approximately 75 degrees) to
determine how far out the base of the ladder should be moved in
relation to the height of the ladder against the wall. Ans: — 4:1
To be effective, mechanical ventilation systems must be able to
a) Distribute ventilation air to most rooms of the house and
exhaust air from kitchens, bathrooms, and laundry rooms.
b) Exhaust air from kitchens, bathrooms, and laundry rooms.
c) Distribute ventilation air to bedrooms and common spaces
d) Distribute ventilation air to most bedrooms and exhaust air
from bathrooms and laundry rooms. Ans: — a
____________ performs routine remote and physical inspections on
gas work and gas equipment in commercial, industrial, and
residential premises.
a) Worksafe BC
© 2025 All rights reserved
, 4 | Page
b) Regional District Building Inspectors
c) Technical Safety BC Ans: — c
If your property is in Technical Safety BC jurisdiction, homeowners
can apply for an electrical homeowner permit.
T or F? Ans: — T
Shingles should overlap the valley lining by at least ____
a) 12 inches.
b) 6 inches.
c) 2 inches.
d) 5 inches. Ans: — b
The moisture trapped within the membranes will form bubbles on
the surface of the flat roof. As moisture builds up on the roof, the
bubbles will eventually grow and pop, forming a blister. The
moisture is formed by ___________
a) excessive heat and poor attic ventilation.
b) excessive cold and poor attic ventilation.
c) excessive heat and excessive attic ventilation.
d) excessive cold and excessive attic ventilation. Ans: — a
If any condensation forms on the inside of your skylight, the weep
holes allow the water to drain out of your home. The condensation
can end up dripping into your home instead if ____
a) too many holes are present.
© 2025 All rights reserved
