Chapter 3

Question 1

It wasn’t until the great Baltimore fire in ___, that there was a national push for the development of a modern building code.

Answer 1

1904

Question 2

Most building codes are not retroactive, meaning that previously built building do not have to comply with the most current regulations in your community. These buildings are called ___.

Answer 2

“existing non-conforming”

Question 3

Regulates the activities that take place in existing building.

Answer 3

Fire codes

Question 4

Americans with Disabilities Act(ADA); set of regulations passed in ___>

Answer 4

1990

Question 5

All building have three structural components.
1.
2.
3.

Answer 5

Superstructure
Substructure
Foundation

Question 6

While small pre fab building have been in existence for more than 150 years, it wasn’t until after WW2 that ___ really became popular.

Answer 6

Modular construction

Question 7

Ammonia is explosive in concentrations of ___ to ___ %.

Answer 7

15-25%

Question 8

Board: ___ inch nominal thickness.

Answer 8

Less than or equal to 2”

Question 9

Dimensional lumber: ___ inch nominal thickness.

Answer 9

2-4”

Question 10

Timber: ___ inch nominal thickness.

Answer 10

Greater than or equal to 5”

Question 11

Nominal thickness is the thickness of the lumber prior to drying in a kiln at the lumber mill. A 2x4 for exempt actually measures ___.

Answer 11

1.5x3.5”

Question 12

Wood varies greatly in its ___, depending on the direction in which the load is applied.

Answer 12

Compressive strength

Question 13

Plywood is manufactured with the grain of alternate plies laid at ___.

Answer 13

Right angles

Question 14

Oriented strand board is another example but the strands are much smaller, ___, which makes OSB cheaper than plywood.

Answer 14

3-4 inches

Question 15

___ : thin wood veneers laid parallel to the length of the member.

Answer 15

Laminated veneer lumber (LVL)

Question 16

___ : long veneers laid parallel, but in more random arrangements.

Answer 16

Parallel strand lumber (PSL)

Question 17

___ : similar to OSB but with longer, 12 inch flaked wood strands.

Answer 17

Laminated strand board (LSL)

Question 18

Another masonry unit is the hollow-core concrete masonry unit. This is the typical _ by_ inch concrete block, or cinder block.

Answer 18

8x16”

Question 19

Concrete is a mixture of ___, ___, and ___.

Answer 19

Portland cement, water, and aggregates

Question 20

In reinforced concrete, concrete provides the ___ strength, while steel provides the ___ strength.

Answer 20

compressive strength… tensile strength

Question 21

___ is almost equally strong in compression and tension.

Answer 21

Steel

Question 22

___ is only tested in tension.

Answer 22

Steel

Question 23

Aerated autoclave concrete is a special type of lightweight concrete, ___ the weight of traditional concrete.

Answer 23

1/4

Question 24

Wrought iron, an expensive metal at the time, is malleable and contains little carbon, ___ %.

Answer 24

0.2%

Question 25

Cast iron, is a very brittle material with high carbon content, ___ %.

Answer 25

3-4%

Question 26

Structural steel, in common use today, is an alloy composed of iron and carbon (___%).

Answer 26

Less than or equal to 2%

Question 27

Structural steel fails at about ___.

Answer 27

1,000-1,100°F

Question 28

Cold drawn steel, such as cables, fails at ___.

Answer 28

800°F

Question 29

Some codes require that some windows in high-rise building be made of breakable glass. These are sometimes marked with a ___ for identification purposes.

Answer 29

Maltese cross

Question 30

Glass was broken in more than ___ building in OKC from the Murrah Bombing.

Answer 30

250

Question 31

___ plastic backing were added to gypsum board to increase its impact resistant for many years.

Answer 31

Polycarbonate

Question 32

“Green materials”… ___ is taking the place of rebar in some homes.

Answer 32

Bamboo

Question 33

The shape of a material affects its ability to resist a ___ load or a ___ one.

Answer 33

compressive load…. deflective load

Question 34

___ is bending that combines both compression and tension.

Answer 34

Deflection

Question 35

Shape is not a consideration in ___ loads.

Answer 35

Tensile

Question 36

Because of the dangers of falling glass, I.C.’s should establish a ___ safety zone at high-rise fires.

Answer 36

200’