materials exam 2 FINAL

A piece of nominal 2 x 6 framing lumber is shown in cross section below. The actual measured perimeter of the cross section is...

14 inches

What are the actual dimensions of the face of the CMU block shown in the image below? -8″ x 8″ -5-5/8″ x 15-5/8″ -8″ x 16″ -7-5/8″ x 15-5/8″

7-5/8″ x 15-5/8″

What most likely supports the bricks spanning the opening in the image below?

A reinforced brick lintel

Which wood-species statement is true? -Hardwoods are always harder than softwoods -Softwoods typically come from broad-leafed trees -Softwoods have a simple and uniform microstructure -Hardwoods are commonly used for framing

Softwoods have a simple and uniform microstructure

What causes the efflorescence shown on the surface of the brick wall in the image below?

Water-soluble salts present in the mortar or masonry units

identify the rafter in the image below

a

identify the trimmer in the image below

a

As discussed in class, which one of the following wood light framing techniques can be used to reduce the amount of lumber required for a project?

advanced framing

In mass timber buildings, building services such as piping and wiring... -can be routed within channels -can be concealed behind a finished wall or drop ceiling -can be left exposed -All the above

all of the above

Lateral force resistance in wood-framed construction prevents a structure from... -sliding -overturning -wracking -All the above

all of the above

Beams used in Heavy Timber construction are sometimes firecut. This is done to...

allow the beam to freely rotate out of the supporting wall in a fire event

When are the mortar joints in a brick wall typically tooled?

an hour or two after laying the bricks

identify the stud in the image below

b

The building stone pictured below is nonporous, hard, strong, and durable. It is also a popular choice for kitchen countertops. What type of stone is it?

granite

The low-lift method and the high-lift method are different procedures for...

grouting reinforced brick walls

Which one of the following statements is not true for CDX plywood? -it has a "C" grade face -it has a "D" grade face -it has a smooth, paintable surface and is often used where appearance is important -it is constructed with exterior glue

it has a smooth, paintable surface and is often used where appearance is important

As discussed in class, why is lime is added to mortar?

it improves workability

You would be least likely to see a mason's apprentice (beginner) performing which of the following task on a jobsite?

laying a lead

Which term below does not belong with the others? -stretcher -rowlock -lintel -soldier

lintel

The building stone pictured below is easily carved and polished and available in a variety of colors. It is also known for its beautiful patterns of veining. What type of stone is it?

marble

Which type of factory housing is designed to comply with the building code in effect where the home will be located and is transported on a flat-bed tractor-trailer?

modular

Which brick bond is shown in the image below?

running bond

Which one of the following wood framing members would most likely to be pressure treated to resist decay and insects? -stud -sill -floor joist -rafter

sill

The building stone pictured below has closely-spaced planes of cleavage which makes it easily split into sheets used for roofing, paving, or flooring. What type of stone is it?

slate

We discussed several basic brick positions in class. Which one is illustrated by the red arrow in the image below?

solider

In terms of wood light frame construction, hips and valleys are associated with...

stairs

We discussed several basic brick positions in class. Which one is illustrated in the image below?

stretcher

LVL, PSL, and LSL are all types of...

structural composite lumber products

The cracks or checks shown in the image below result from...

tangential shrinkage

Which of the following is not true for plainsawn lumber? -It is commonly used for framing -It is commonly used for finish flooring, interior trim, and fine furniture -It produces maximum yield and therefore greatest economy -It requires the least repositioning of the log during sawing

It is commonly used for finish flooring, interior trim, and fine furniture

Name the mortar types in order of decreasing strength. -M, N, S, O, K -M, S, N, O, K -K, S, N, O, M -S, N, M, O, K

M, S, N, O, K

If a piece of lumber is stamped "KD-19", which of the following statements is true?

The lumber was seasoned in a kiln to a moisture content of 19%

Anchor bolts are used in wood light frame construction to connect...

bottom plates to the concrete foundation

Identify the joist in the image below:

c

What type of masonry wall is shown in the image below? -Traditional composite wall -Contemporary composite wall -Cavity wall -Posttensioned masonry wall

cavity wall

In the wall insulation video that you watched in Canvas, which type of insulation material was not discussed? -Chopped up newspaper -Expanding spray foam -Recycled blue jeans -Chopped up tires

chopped up tires

Which brick mortar profile is shown on the left side of the brick in the image below?

concave

Identify the header in the image below:

d

"Bridging" in wood light frame construction is most closely associated with...

floor joists

A significant benefit of using floor trusses instead of solid wood (e.g., 2"x 12") joists is...

floor trusses allow for easier installation of building services

If the span rating on a piece of OSB is 32/16 (see image below), which one of the following statements is correct? -the maximum spacing of supports is 32 inches if used as wall sheathing -the maximum spacing of supports is 32 inches if used as roof decking -the maximum spacing of studs is 16 inches if used in SIPs -OSB is not available with a span rating

the maximum spacing of supports is 32 inches if used as roof decking

If a piece of lumber is stamped S-DRY, which of the following statements is true? -the moisture content of the lumber will never be more than 19% -the wood is OSB -the lumber is free of defects (knots and indications of insect damage) -the piece of lumber was surfaced when in a seasoned condition

the piece of lumber was surfaced when in a seasoned condition

As discussed in class, why is a brick wall is washed with muriatic acid?

to remove mortar stains

How would the item in the image below be used on a construction site? -To tie a brick veneer wall to the structure -To tie the bottom plate to the ceiling joist -To tie a CMU to the window sill -To tie wall studs together

to tie a brick veneer wall to the structure

Much like concrete, admixtures such as accelerators and retarders can be added to mortar to alter its properties. true or false?

true

To improve absorption, lumber may be punctured with an array of cuts on the surface called incising before the chemical preservative treatment is applied. true of false?

true

A heavy timber building (IBC Type IV Construction) is primarily fire-protected by...

using a minimum size cross-section for structural members such as columns and beams

The effect of posttensioning a CMU wall is to put the wall in: -horizontal tension -vertical shear -vertical tension -vertical compression

vertical compression

____________ are provided at the bottom course of brick veneer to allow moisture to escape from the wall cavity.

weep holes

As discussed in class, waterborne salts are associated with.

wood preservatives