BOMI Desin & Oper Ch. 3 Flashcards Preview

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Flashcards in BOMI Desin & Oper Ch. 3 Deck (29)
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1

Degree of heat transfer depends on 2 factors

Temperature and heat flow. Temperature is the amount of thermal energy available, and heat flow is the movement of thermal energy from place to place (outside in)

2

Conduction

Mechanism of heat transfer in opaque, solid media, such as walls and roofs (warm temperature of coffee felt through a mug)

3

Radiation

Heat felt from an asphalt roof on a hot day. Form of heat transfer that occurs between two separated bodies as a result of electromagnetic radiation.

4

Cement

Burned mixture of clay and limestone pulverized and mixed with water and aggregate. Prime ingredient in creation of mortar, grout and concrete.

5

Steel

Excellent heat conductor and a poor heat insulator. Excellent sound reflector. Cast in concrete to protect steel during a fire.

6

Copper

Copper & its alloys of brasses (copper & zinc) & bronzes (copper & tin) are used in various ways in construction. Excellent outdoor metal because of its corrosion resistance.

7

Aluminimum

Soft, nonmagnetic, & corrosion-resistant silvery metal, has a low melting point, high thermal & electrical conductivity, & light weight. Not an effective sound absorber & isn't used in wall, floor, or ceiling applications as a sound reflector.

8

Lead

Soft, malleable metal that h as a number of applications in construction. Pliable & poor conductor of electricity w/great resistance to corrosion. Not a radiation hazard & is an excellent radiation shield.

9

Plaster

Mixture of portland cement, lime, gypsum, and other material, such as wood fiber. Similar to mortar or cement.

10

Stucco

Type of plaster made with portland cement and applied to exterior surfaces to form a finish coating. Finish treatments can be given to produce desired textures.

11

Wood

Free from rust and corrosion, lightweight and adaptable to a variety of uses. Steel framing is replacing wood in commercial buildings. More dense woods are better sound reflectors, and less dense woods are better sound absorbers.

12

Wood Seasoning

Process of drying lumber to make it ready for use.

13

Green Lumber

Unseasoned lumber.

14

1) On the first cold day of the year, Ron turns on the electric heat in his building. As the fans begin to blow warm air into t he offices, heat is transferred through a process called: a-conduction; b-convection; c-radiation; d-emission

b-convection

15

2) Mary is overseeing the retrofit of an older building. She recommends the use of _____ insulation, because the shape and location of certain interior walls are a challenge to insulate. a-blanket; b-corrugated; c-sprayed-on; d-reflective

c-sprayed-on

16

3) Mark makes sure that the ______ used in his building is constructed w/steel reinforcement bars. This is because, though it has great compressive strength, it has little tensile strength. a-brick; b-concrete; c-cement; d-stone

b-concrete

17

Tensile strength

Ability to w/stand being pulled apart.

18

4) Emily is helping to design a building that will be located in a part of the country prone to earthquakes. Which type of mortar, known for its compression and tensile strength, is she likely to recommend using. a-Type M; b-Type O; c-Type N; d-Type S

d-Type S

19

Type M Mortar

High-Compression Strength; highest proportion of portland cement, & is recommended for walls bearing heavy loads, foundations, retaining walls, sidewalks, & driveways

20

Type S Mortar

Compression and Tensile Strength; Yields maximum flexural strength to fight wind, soil pressure, or earthquakes.

21

Type N Mortar

For exterior, above-grade walls; Recommended for most exterior, above-grade walls exposed to severe weather, including chimneys

22

Type O Mortar

For interior or non-loadbearing Use; recommended for interior and limited exterior use in non-loadbearing walls

23

5) David disagrees w/his colleague's suggestion to incorporate ______ in the ornamental ceiling applications to be installed in his building, because this metal is not an effective sound absorber. a-aluminum; b-lead; c-copper; d-bronze

a-aluminum

24

6) Knowing stainless steel's susceptibility to galvanic action, Kristina decides against adding ornamentation that is comprised of steel and ______ to the outside of her building. a-magnesium; b-zinc; c-copper; d-aluminium

c-copper

25

7) One reason Michael uses gypsum wallboard (drywall) is that it is ______. a-fire-resistant; b-easily formed into curves and shapes; c-only applied to exterior surfaces; d-water-resistant

a-fire-resistant

26

Gypsum

Soft, hydrous calcium sulfate. Fire resistant due to a slow release of water from crystallization contained in gypsum

27

8) Ashley is eager to complete a spatter dash finish treatment to the ______ walls in her building. a-plaster; b-brick; c-stucco; d-slate

c-stucco

28

9) In accordance w/NIST, ______ refers to a system that identifies the placement of wood defects and possible strength of the lumber. a-wood seasoning; b-wood grading; c-wood coating; d-wood pressure

b-wood grading

29

10) Although knots won't reduce the usefulness of wood, holes and cracks are defects that might impact wood's ______. a-fire-resistance; b-sound reflectance; c-strength; d-color

c-strength