NBC 2015 - Section 9.22- 23

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According to the text, what type of fireplace liners are required for every fireplace except those equipped with a steel liner?

Steel liners

Brick liners

Firebrick liners (correct)

Concrete liners

What is the minimum thickness required for the sides and back of a firebrick liner?

100 mm

50 mm (correct)

75 mm

25 mm

According to the text, what type of mortar should be used for laying firebrick liners?

Masonry cement mortar

Regular cement mortar

Air Setting Refractory Mortar (correct)

High temperature cement mortar

What type of lintels can be used to support masonry above fireplace openings?

Steel lintels Signup and view all the answers

According to the text, where should the joints between a firebrick liner and the adjacent backing masonry be placed?

Offset Signup and view all the answers

According to the text, what is the minimum number or maximum spacing of fasteners for board lumber that is 184 mm or less wide?

2 per support Signup and view all the answers

According to the text, what is the minimum number or maximum spacing of fasteners for plywood, OSB or waferboard up to 20 mm thick?

50 mm o.c. within 1 m of the edges of the roof Signup and view all the answers

According to the text, what is the minimum diameter or thickness of staples?

1.6 mm Signup and view all the answers

According to the text, what is the minimum diameter of roofing nails for the attachment of fibreboard or gypsum sheathing?

3.2 mm Signup and view all the answers

According to the text, what is the minimum diameter of flooring screws?

3.2 mm Signup and view all the answers

Which code must fireplace inserts and hearth-mounted stoves vented through the throat of a fireplace conform to?

ULC-S628 Signup and view all the answers

What is the maximum spacing allowed for small repetitive structural members in wood-frame construction?

600 mm Signup and view all the answers

What is the maximum specified live load on supported subfloors and floor framing in wood-frame construction?

2.4 kPa Signup and view all the answers

What is the minimum diameter of nails specified in the code for compliance with Table 9.23.3.4.?

2.87 mm Signup and view all the answers

How should the nails be positioned to minimize splitting of wood members?

Staggered in the direction of the grain and kept well in from the edges Signup and view all the answers

According to the National Building Code of Canada 2015, what is the minimum number of nails required for attaching a rim joist, trimmer joist, or blocking to supporting walls with required braced wall panels?

2 nails Signup and view all the answers

How many nails are required to attach a bottom wall plate or sole plate to floor joists, rim joists, or blocking for exterior walls?

3 nails Signup and view all the answers

What is the minimum number of nails required to attach a ceiling joist to a plate?

4 nails Signup and view all the answers

How many nails are required to attach plank decking wider than 38 mm × 140 mm to support?

5 nails Signup and view all the answers

According to the National Building Code of Canada 2015, how many nails are required to fasten sheathing made of plywood, OSB, or waferboard over 20 mm and up to 25 mm thick?

51 nails Signup and view all the answers

According to the National Building Code of Canada 2015, what is the minimum thickness required for the back and sides of a fireplace with a metal liner or a firebrick liner less than 51 mm thick?

190 mm Signup and view all the answers

According to the National Building Code of Canada 2015, what is the minimum distance required from the back of the fire chamber to the plane of the fireplace opening?

300 mm Signup and view all the answers

According to the National Building Code of Canada 2015, what is the minimum dimension required for the noncombustible hearth extension in front of the fireplace opening?

400 mm Signup and view all the answers

According to the National Building Code of Canada 2015, what is the minimum clearance required between the back and sides of a fireplace and combustible framing, if the fireplace is located in an exterior wall?

50 mm Signup and view all the answers

According to the National Building Code of Canada 2015, what is the minimum clearance required between the back and sides of the smoke chamber of a fireplace and combustible framing, if the fireplace is located in an exterior wall?

25 mm Signup and view all the answers

Which beam size is required to support a one-storey dwelling unit with a supported joist length of 5.5m?

W200 x 27 Signup and view all the answers

What is the maximum supported joist length for a two-storey dwelling unit with a W310 x 31 beam?

6.4m Signup and view all the answers

Which beam size is required to support a one-storey dwelling unit with a supported joist length of 7.8m?

W310 x 31 Signup and view all the answers

What is the maximum supported joist length for a two-storey dwelling unit with a W200 x 21 beam?

5.1m Signup and view all the answers

Which beam size is required to support a one-storey dwelling unit with a supported joist length of 10.2m?

W310 x 39 Signup and view all the answers