CME 203 - Test 2

Wood products overcome shortcomings of soil sawn lumber, and they range from laminated wood to composite lumber to wood panel products. What are the 2 troubles with solid sawn lumber that these wood products can be used to avoid?

1) Dimensional instability 2) Inconsistent quality 3) Difficulty to get the right sizes

What are two requirements of type IV Heavy Timber construction for fire resistance?

1) Interior wood framing members must meet minimum size requirements 2) Exterior walls must be noncombustible construction

Which of the following regarding masonry wall construction is FALSE? A) Masonry loadbearing walls are usually reinforced but also can be post-tensioned. B) Masonry loadbearing walls can be used to support the floors framed with wood joists, but they are not strong enough to support precast concrete hollow slabs. C) Masonry walls may be constructed of two or more types of masonry units to satisfy both economy and appearance. D) Though labor intensive to construct, masonry walls are desirable because of high fire resistance.

B) Masonry loadbearing walls can be used to support the floors framed with wood joists, but they are not strong enough to support precast concrete hallow slabs

You studied many bricks structural bonds. Some of these, like Flemish bond, common bond, and English bond, involve double wythes. But these structural bonds are not used much in new construction today because: a. they are not aesthetically pleasing. b. past moisture penetration problems doomed this type of wall construction. c. these are loadbearing bonds, but most brick used on buildings today is not loadbearing. d. these structural bonds made it difficult to detail window and door openings. e. creating lintels over openings in these structural bonds is very difficult.

C) These are loadbearing bonds, but most brick used on buildings today is not loadbearing

Which of the following regarding screws in wood connection is false? A) Have greater holding power than nails B) Can be inserted with greater precision than nails C) Can exert greater clamping force between joined pieces than nails D) Inexpensive and not as time consuming to install compared to nails E) Can be backed out and reinserted

D) Inexpensive and not as time consuming to install compared to nails i.e screws are more expensive and take more time during installation

Chose one of them: Higher brick kiln temperature leads to (lighter / darker) and (smaller / larger) bricks.

Darker, Smaller

What does EIFS stand for?

Exterior Insulation and Finish System - EIFS is a non load bearing system and is also referred to as synthetic stucco

What doe horizontal expansion joints (soft joints) do to brick veneer curtain walls?

It prevents normal movements in the building frame (due to foundation settlement) from stressing the brick veneer and allows the veneer to expand and contract without distress

In what direction does lumber shrink the least?

Longitudinal

Double glazed windows often include which glass for improving their thermal performance?

Low-e-glass

Why does a mason lay leads rather than just laying each course of bricks continuously from one corner of the wall to the other corner? Leads are the first several courses of bricks laid at corners.

Make it easy to produce a plumb and level wall

Which type of glass is most often used in and around exterior doors where pedestrian traffic is heavy?

Tempered

Why are holes punched in light gauge steel framing members?

The holes punched through the framing members provide space for electrical wiring and plumbing

What is an internal component of insulating material that thermally isolate the aluminum on the interior side from the exterior side?

Thermal Break

What is the basis for classifying lumber into board, dimension, lumber, and timber?

Thickness

For a building clad with brick panels or stone panels, light gauge steel studs backup walls do the following except. a. Carry loads of brick/stone panels b. Support an interior wall finish layer c. Carry thermal insulation d. House electrical wiring

a. carry loads of brick/stone panels

Large-lite glazing requires consideration of the following, except: a. glazing must always be vacuum-insulated. b. weep holes must be provided in the horizontal mullions. c. glazing must be supported without imparting stresses. d. gaskets must separate glazing and frame. e. glazing must be supported against wind loads.

a. glazing must always be vacuum-insulated

Which of the following materials is typically NOT part of an EIFS system? a. Posttensioning tendons b. Metal or plastic reinforcing mesh c. Finish coat of stucco-like material d. Rigid plastic foam insulation board e. Base coat of stucco-like material

a. post tensioning tendions

Which of the following is NOT a suitable backup wall for brick veneer cladding? a. Concrete masonry b. Precast concrete panels c. Light gauge steel studs with gypsum sheathing d. None of the above

b. precast concrete panels

Which of these statements is FALSE? a. Water absorption is important for paving brick. b. Solid brick must not contain any holes. c. Frogs permit a brick to cure more evenly. d. Hollow bricks are used for adding reinforcement. e. Firebricks are made from special clays.

b. solid brick must not contain any holes i.e there are two types of holed bricks - frogged and core holed

Which one of the following is NOT among the characteristics of light gauge steel frames? a. Thermally inferior in itself b. Susceptible to decay and termites c. Dimensional stability unaffected by humidity d. Noncombustible, enabling its use in higher construction types and larger buildings

b. susceptible to decay and termites

Ice dams are most directly related to: a. the installation of soffit vents and ridge vents. b. a roof having gutters. c. heated air in an uninsulated, unvented attic. d. the addition of vent spacers in rafter bays. e. a house having gable vents.

c. heated air in an uninsulated unvented attic

Aluminum is the "metal of choice" for curtain wall systems for all of the reasons below except: a. it can be easily fabricated into elaborately detailed shapes by means of the process of extrusion. b. aluminum protects itself well against corrosion. c. it is a good insulator. d. it accepts and hold a variety of attractive surface finishes.

c. it is a good insulator

Anodizing aluminum means: a. Letting aluminum oxidize naturally in air. b. Adding thermosetting powders to its surface. c. Painting it. d. Building up a strong oxide coating using an electrolytic process.

d. building up a strong oxide coating using an electrolytic process.

Window and door openings in exterior walls should have flashings installed to: a. protect against UV degradation of finishes b. protect against insect infiltration through the opening c. protect against air leakage through the openings d. protect against heat loss through the openings e. protect against water leakage through the openings

e. protect against water leakage through the openings

What is the primary purpose of housewrap (Tyvek) ?

reduce air infiltration/drafts