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M&M 1 > Slide 1 > Flashcards

Slide 1 Flashcards

1
Q

What does MAATO stand for?

A

Member of the Association of Architectural Technologists of Ontario

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2
Q

What does CBCO stand for?

A

Certified Building Code Official

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3
Q

What does BCIN stand for?

A

Building Code Identification Number

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4
Q

What are coniferous trees also known as?

A

Soft Woods

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5
Q

What are coniferous trees?

A

Spruce, Pine, Fir

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6
Q

What are spruce, pine, fir trees?

A

Coniferous

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7
Q

Do coniferous or deciduous trees have more species in Canada?

A

Deciduous

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8
Q

Do coniferous or deciduous trees have a larger quantity of trees?

A

Coniferous

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9
Q

What are Hard Wood trees also known as?

A

Deciduous

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10
Q

What are deciduous trees?

A

Maple, Oak, Birch

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11
Q

Where does growth occur in the tree?

A

The Cambium layer

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12
Q

What is sapwood also known as?

A

Early wood

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13
Q

Is sapwood light or dark?

A

Light

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14
Q

What is hardwood also known as?

A

Late wood

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15
Q

Is hardwood light or dark?

A

Dark

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16
Q

Which is denser, sapwood or hardwood?

A

Late wood

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17
Q

What makes up the cell walls?

A

Cellulose and Hemicellulose

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18
Q

What is cellulose and hemicellulose?

A

Strand like polymers

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19
Q

What is lignin?

A

A thin cementing layer between cell walls

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20
Q

Where is lignin located?

A

Between cell walls

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21
Q

What is free water?

A

Water located within cell cavities

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22
Q

What is bound water?

A

Water located within structure of cell walls

23
Q

What kind of water is in cell cavities?

A

Free water

24
Q

What kind of water is in the structure of cell walls?

A

Bound water

25
Q

What does FSP stand for?

A

Fibre Saturation Point

26
Q

What happens when cell walls begin to collapse?

A

Dimensional change and deformation

27
Q

Why do cell walls collapse?

A

Moisture content drops below the FSP

28
Q

What is dimensional change also known as?

A

Shrinkage

29
Q

What does deformation include?

A

Warping, splitting, etc.

30
Q

What does Hygroscopic mean?

A

Wood will expand or swell when moisture is absorbed and shrinks when moisture is lost

31
Q

What moisture content must dry wood stay under according to the building code?

A

19%

32
Q

What is the formula for moisture content?

A

MC=(weight of water in wood/wight of dry wood)X100

33
Q

What are the three axis of dimensional change?

A

Radial, longitudinal, and tangential

34
Q

What describes the character of the cellular structure exposed on the cut surface?

A

Grain

35
Q

What does Anisotropic mean?

A

It is strong along or parallel to cells but weak across or perpendicular to cells

36
Q

What type of material would have the same properties along all axis?

A

An isotropic material

37
Q

What axis has the most shrinkage and by how much?

A

Tangential shrinkage is double the radial shrinkage

38
Q

What type of sawn board is considered more stable?

A

Quartersawn

39
Q

What is the angle of rings in quarter-sawn wood?

A

> 45 degrees

40
Q

What is the angle of rings in flat-sawn wood?

A

<45 degrees

41
Q

What type of sawn wood has rings that are greater than 45 degrees?

A

Quarter-sawn

42
Q

What type of sawn wood has rings that are less than 45 degrees?

A

Flat-sawn

43
Q

What is flat-sawn also known as?

A

Plain-sawn

44
Q

What does lumber surfacing do?

A

Smoothes lumber, rounds edges, makes it more square

45
Q

What occurs first: surfacing or seasoning?

A

Seasoning

46
Q

What does S-GRN stand for?

A

Surfaced Green

47
Q

What does S-DRY stand for?

A

Surfaced Dry

48
Q

What does S-GRN mean?

A

Lumber has been surfaced before seasoning

49
Q

What moisture content does S-GRN have?

A

More than 19%

50
Q

How is wood graded?

A

Visual inspection

51
Q

What lumber is graded and stamped?

A

Any used for structural framing

52
Q

What does NLGA stand for?

A

National Lumber Grades Authority

53
Q

What wood is machine graded?

A

Lumber used in demanding structural applications

54
Q

What 5 things are included on a grade stamp?

A

Grading rules, grade number/name, species, S-GRN/S-DRY, mill number

M&M 1 (6 decks)

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