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BC 4th > Chapter 7 > Flashcards

Chapter 7 Flashcards

1
Q

What is the relationship of nominal size to actual dimension in solid lumber

A

Nominal is larger than actual

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2
Q

At what interval must the brick veneer be tied to the wood frame walls

A

16 inches (400 mm)

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3
Q

Which of the following can parallel strand lumber be used for

A

heavily loaded columns

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4
Q

Below what temperature does pyrolysis begin

A

392 degrees F ( 200 degrees C)

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5
Q

What is the direction of the grain of adjacent veneers in plywood?

A

At right angles to each other

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6
Q

What is installed on the outside of the studs to provide structural stability and an underlay for the siding

A

sheathing

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7
Q

Which provides the exterior cladding of a wood fame building

A

Siding

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8
Q

Which makes use of a short circular piece of steel within and between two adjacent wood members to transfer the load between the members

A

split ring truss

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9
Q

Which of the following causes of deterioration is unique to wood

A

Insects

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10
Q

How far apart are the post usually spaced in post and beam framing

A

4 to 12 feet (1.3 m to 4 m)

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11
Q

Which cannot be used to join laminated members when tensile forces will be transmitted along the length of the beam

A

Butt joint

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12
Q

Which of the following is not a disadvantage to the use of wood in building construction

A

wood shrinks uniformly

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13
Q

What determines the extent to which the presence of foam insulation in a wood frame wall will increase fire spread within the wall?

A

Existence of an air space

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14
Q

What is generally the maximum number of stories of a wood structure

A

three

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15
Q

What does the construction of a platform frame building begin with

A

Wood sill being attached to the foundation

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16
Q

On the basis of strength to unit weight, which material is wood’s tensile strength comparable to

A

Steel

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17
Q

In which area is ignition resistant construction beginning to take place

A

Urban-wildland interface

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18
Q

What fire resistance rating must be achieved for a wood frame building to be classified as Type V-A

A

1 hour

19
Q

What is the minimum size of the columns in heavy timber framing

A

8 x 8 inches (200 mm x 200 mm)

20
Q

What is the total amount of thermal energy that could be released if the fuel were completely burned

A

Heat of combustion

21
Q

Which is the most common type of wood framing

A

Light wood framing

22
Q

Fire within what type of insulation material will progress in a slow smoldering manner

A

Granulated rock wool

23
Q

Which type of phenomenon is the combustion of wood

A

Surface alone

24
Q

How many different directions is it possible for fire to spread where truss joists are used in floor construction

A

Four

25
Q

In balloon frame construction where do the exterior wall studs run

A

Foundation to the roof

26
Q

Which of the following is used when energy efficiency is desired

A

Composite panel

27
Q

What is the minimum nominal thickness of a timber

A

5 inches (125 mm)

28
Q

Which interior finish material is most commonly used when a degree of fire resistance is required

A

Gypsum board

29
Q

What is the maximum moisture content of structural lumber

A

19 percent

30
Q

What would the fire retardant treated plywood of the 1980 react with under conditions of elevated temperature which resulted in the wood becoming brittle

A

Moisture in the air

31
Q

What are the initial products of pyrolysis

A

Water and carbon dioxide

32
Q

Which type of connection is most likely to be seen in heavy timber construction

A

Bolts

33
Q

What size area are attic spaces usually required to be subdivided into in combustible construction

A

3,00 square feet (278.7 sq.m)

34
Q

What happens to the fire retardant wood when it is exposed to heat?

A

Chars

35
Q

Which material can be used to make the flanges of an I beam

A

Solid wood lumber

36
Q

What is eliminated with post and beam framing?

A

Combustible voids

37
Q

What nominal size members are used to make up light frame trusses

A

2 inch (50 mm)

38
Q

Which of the following is typically used for short span beams and columns

A

Laminated strand lumber

39
Q

When did ballon framing begin to lose favor in the construction industry

A

1920’s

40
Q

Which is used in the flooring of manufactured and mobile homes

A

Waferboard

41
Q

What are the flat strips of wood used to make laminated wood joined together with?

A

Glue

42
Q

How many layers of strand like wood particles are glued together to make oriented strand board

A

Three to five

43
Q

What is the main advantage of thermoplastic composite lumber

A

resistance to weathering

BC 4th (14 decks)

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