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AECT110 > Chapter 14 Multiple choice > Flashcards

Chapter 14 Multiple choice Flashcards

1
Q

What kind of beam is the most common use of glulam members?

A

Long-span beams

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2
Q

Unprotected glulam members with a large cross section are considered to provide a fire resistance rating of up to:

a. 1/2 h
b. 1 h
c. 2h

A

b. 1 h

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3
Q

This type of member is generally stronger and stiffer than sawn lumber of the same dimensions. What is it?

A

Glulam Member

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4
Q

Unbalanced beams can be used only as single-span beams. True or False?

A

True

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5
Q

Balanced glulam beams are mandated for?

A

Continuous beams and beams with an overhang

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6
Q

This type of member is produced by gluing together wood veneers that are approximately 1/8 thick, generally used as floor joists and beams, glued with all veneers running in the same direction, and stronger along the grain and weaker across the grain. What is it?

A

Laminated Veneer Lumber (LVL)

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7
Q

Wood I-joists are made of LVL or solid sawn lumber flanges and webs. True or False?

A

False

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8
Q

Compared to sawn lumber joists, wood I- joists are:

a. Less expensive
b. Slightly Heavier
c. Dimensionally more stable

A

C. Dimensionally more stable

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9
Q

What are two characteristics of a truss?

A
  1. Greater spanning capability than a sawn lumber beam having the same amount of material
  2. Individual members joined together to form an array of interconnected triangular frames.
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10
Q

Nail plates, used to join members to a truss, are generally used only on one face of the truss. True or False?

A

False

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11
Q

Wood trusses are generally spaced at how many inches on center?

A

24inches on center

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12
Q

Plywood panels are made by gluing under heat and pressure layers of ?

A

Wood veneers so that the wood grains in adjacent layers are perpendicular to each other

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13
Q

Cross-graining makes a plywood panel:

a. dimensionally more stable
b. less likely to split than solid sawn lumber
c. stronger in the direction of face veneer grains
d. All of the above

A

D. all of the above

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14
Q

The most commonly used plywood panel (nominal) size is 4ft. X 8ft. True or false?

A

True

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15
Q

Plywood panels should be placed with their longer dimension running in what direction to rafter or joists?

A

Plywood panels should be placed with their longer dimension perpendicular to rafter or joists.

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16
Q

With respect to veneer quality, softwood plywood is graded in grades what to what?

A

A to D

17
Q

An OSB panel generally has greater shear strength than a plywood panel of the same size and thickness. True and False

A

True

18
Q

Grade stamps on engineered wood panels specify:

a. intended use and exposure
b. allowable spans
c. mill number
d. thickness
e. all of these above

A

e. all of the above.

19
Q

Exterior siding panels may be made of OSB or plywood. True or False?

A

True

20
Q

Several different type of nails are used in wood frame construction. They are typically distinguished from each other by the what two things?

A

Nail head and Nail shank

21
Q

The nails most commonly used in wood frame construction are which four?

A

6d, 8d, 10d, 16d

22
Q

Nails work best when they are subjected to which?

Shear or Tension?

A

Shear

23
Q

Which of the following nailed connections is the strongest?
a. Face nailing
b. Toe nailing
c End nailing

A

A. face nailing

24
Q

Nail popping is primarily a problem in floor sheathing and is caused by the shrinkage of floor sheathing? True or False?

A

False

25
Q

Joist hangers are steel connectors that connect what to what?

A

Joist hangers are steel connectors that connect floor joists with a supporting beam

26
Q

The adhesives used in making engineered wood products contain what?

A

Formaldehyde

27
Q

Gaseous emissions produced by engineered wood decrease over time. True of False?

A

True

AECT110 (27 decks)

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