Construction 7

Question 1

The allowable compressive strength parallel to the grain varies from($$$$$) for commercially available grades and species on lumber.

Answer 1

(325 to 1700 psi

Question 2

Wood is stronger in a direction ($$$$$) to the grain then against the grain.

Answer 2

Parallel

Question 3

Wod has a ($$$$) strength comparable to steel.

Answer 3

Tensile

Question 4

The allowable tensile strength of wood is about ($$$$)

Answer 4

700 psi

Question 5

Oat structural lumber has a moisture point of ($$$$) or less.

Answer 5

19%

Question 6

Boards have a nominal thickness of ($$$$)

Answer 6

2 inches

Question 7

Dimension lumber has a nominal thickness of ($$$$).

Answer 7

2 to 4 inches

Question 8

Dimensional lumber is available in lengths of ($$$$) in ($$$) increments

Answer 8

8 to 18 feet

2 foot

Question 9

Nominal 2x4 inch board will wave a nominal thickness of ($$$$).

Answer 9

1 1/2 to 3 1/2 inches

Question 10

Laminated wood members are produced by joining flat stips of wood with glue. The beams produced by this method are known as ($$$$$)

Answer 10

Glulam boards

Question 11

Three types of joint are used to join laminated members end to end. These are the ($$$$), ($$$$, and ($$$).

Answer 11

Butt joint
scarf joint
Finger joint

Question 12

The ($$$) and ($$$$$) can be used to transmit tensile forces.

Answer 12

Scarf

Finger joint

Question 13

($$$$) is produced by peeling sheets of veneer from the outer portion of a log. These sheets of veneer are laminated in parra level alignment.

Answer 13

Laminated veneer lumber LVL

Question 14

($$$$$$) is made from the outer most veneers peeled from a log that are not as uniform. And produce odd shape stands that are coated with adhesive and cured under pressure. S the strongest of the SCL products and can be used for heavily loaded columns and long spans.

Answer 14

Parallel strand lumber PSL

Question 15

($$$$) is produced by taking long stands of wood up to 12 inches and bounding them with resin in a steam pressing process. Short span beams an columns.

Answer 15

Laminated strand lumber LSL

Question 16

Structural composite lumber SCL

Answer 16

LVL laminated veneer lumber
PSL parallel strand lumber
LSL laminated strand lumber

Question 17

($$$) are made up of several thin layers or veneers that are rotary sliced FRO rotating logs and glued together.

Answer 17

Plywood

Question 18

($$$$$) uses long, strand like wood particles that are compressed and glued into three to five layers. The stands are oriented with each layer in the same direction.

Answer 18

Oriented strand board

Question 19

())))$$$$) consist of a face and back panel such as plywood or OSB bounded to a central core material.

Answer 19

Composite panels

Question 20

($$$$) trusses are made up of 2 inch members that are all in the same plane.

Answer 20

Lightweight

Question 21

($$$$$$) are made up of member up to 8 to 10 inches.

Answer 21

Heavy timber trusses

Question 22

A ($$$$) truss makes use of a short circular piece of steel within and between two adjacent wood members to transfer the load between the members.

Answer 22

Split ring truss

Question 23

One of the fundamental drawbacks to wood as a building material is its ($$$$$$$)

Answer 23

Combustabillity

Question 24

The two main fire retardant treatments are ($$$$$) and ($$$$$)

Answer 24

Pressure impregnation

Surface coating

Question 25

($$$$$$) is a wood like product produced Fromm wood fiber and polyethylene or PVC

Answer 25

Thermoplastic composite lumber

Question 26

The wood framing systems frequently encountered can be broadly classified in to two types ($$$$$) and ($$$$)

Answer 26

Timber framing

Light wood framing

Question 27

Because of labor cost and limitations in the basic strength of wood, most wood frame buildings do not exceed ($$$$$),

Answer 27

Three stories

Question 28

In heavy timber framing columns are not less than ($$$$) and beams are not less than ($$$$)

Answer 28

8 x8

6 x 10

Question 29

The ($$$$$) are used frequently in heavy timber construction where greater lengths are required.

Answer 29

Glulam beams

Question 30

($$$$$$) notch hole or space cut into a piece of timber to receive the projecting part of another peice of timber.

Answer 30

Mortise

Question 31

Rejecting member in a piece of wood or other material for insertion into a mortise joint.

Answer 31

Tenon

Question 32

Post and beam framing

The post are usually ($$$$) or ($$$). The post are usually spaced ($$$$$) apart.

Answer 32

4 x 4
6 x 6
4 to 12 feet.

Question 33

The most popular form of framing is known as light wood frame construction. Light wood fram construction makes use of ($$$$) nominal lumber the wall are formed from studs spaced ($$$$) apart and the floors are supported by joists.

Answer 33

2 inch

12, 16 24 inches

Question 34

In ($$$$$) constriction the exterior wall studs are continuous from the foundation to the roof.

Answer 34

Balloon frame

Question 35

In ($$$$$) the exterior wall veritcle studs are not continuous to the second floor.

Answer 35

Platform framing

Question 36

Building codes require (($) in attic spaces of combustible construction.

Answer 36

Draft stopping

Question 37

($$$$$) divider hung from the ceiling to minimize mushrooming

Answer 37

Draft stops
Curtain boards
draft curtains

Question 38

Brick veneer adds little structural support and must be tied to the wood frame wall at intervals of ($$$$$).

Answer 38

16 inches

Question 39

One frequent used rule is that in a brick bearing wall every ($$$$) course of brick is a header course with the ends of the brick facing out.

Answer 39

Sixth