COSC 253 QUIZZES

Question 1 Flashings used in masonry cavity wall construction can be made of each of the following materials except: ashlar Question 2 Efflorescence that appears on the surface of a wall of brick, stone, or concrete masonry can be caused by: water-soluble salts present in the mortar, brick, stone, or CMU. Question 3 Which term does not belong with the others? Mortar joint Question 4 The process of raking and cutting out defective mortar and replacing it with fresh mortar is called: tuck pointing. Question 5 The tooled joint lines that you can see on a typical concrete sidewalk are: control joints. Question 6 A composite masonry wall is so named because it features: an outer wythe of stone or brick and a backup wythe of CMUs. Question 7 The effect of posttensioning a concrete masonry wall is to put the wall in: vertical compression. Question 8 Which statement is incorrect? Cavity masonry walls are beneficial because: their two wythes of brick masonry provide added insulation. Question 9 Which of these is not part of a masonry cavity wall's drainage system? Wall tie Question 10 In a CMU loadbearing wall, the weakest component is the: mortar. Question 11 Which of these masonry insulating techniques affects the exterior appearance of the wall? EIFS Question 12 Which of these is true? In hot weather, fresh mortar must not dry out. In hot weather, masonry may have to be wetted before laying. In cold weather, fresh mortar water must not freeze. Question 13 What is the load bearing, structural system of this wall? Reinforced concrete block (CMU) Question 14 What is the insulation of this wall? Plastic foam insulation Question 15 What is the insulation of this wall? (CHECK all that apply, there is more than one right answer) Insulated cores (CMUs) Rigid foam

week 8

#1 Which of the following is not an example of a legal constraint an architect/engineer might face when designing a building? Cost of borrowing money #2 The LEED system deals with: sustainability in design and construction. #3 The IBC is an example of a: building code. #4 According to the U.S. Green Building Council, what percentage of the world's energy use and greenhouse gas emissions can be attributed to buildings? 30- 40% #5 Recycled materials content is environmental information that is typically: self-declared by the manufacturer. #6 The difference between cradle-to-gate and cradle-to-grave life cycle analysis is that the first does not include: product disposal. #7 A product's embodied energy in a cradle-to-gate life cycle analysis describes: the energy expended to produce the product. #8 Find the false statement: Buildings that follow the Living Building Challenge must be certified immediately after construction. #9 Which statement is correct? In the MasterFormat system: All of the choices in this answer list #10 Construction expertise (e.g., by the construction firm) is typically included latest in the planning process in which arrangement? Design/bid/build #11 The owner assumes the highest cost risk in which arrangement? Cost plus a fee #12 In phased construction: building design may not be complete before construction begins. #13 A construction project's critical path describes: the fastest time in which a project can be completed. #14 BIM is: a data-rich digital building model. #15 Which of these activities does not contribute to lean construction? Sequential construction

WEEK 1

Question 1 Which of the following materials is not used on a steep roof? Built-up roofing system Question 2 In roofing applications, ballast can perform all of the following functions except: contribute to air circulation under the roof membrane. Question 3 Which material would you be least likely to see being used as a roof deck? EPMD membrane Question 4 In construction, perms are associated with: vapor retarders. Question 5 The terms batten seam, standing seam, and flat seam all describe types of: architectural sheet metal roofing. Question 6 Roof decks on low-slope roofs must: resist wind uplift forces. contain enough joints to accommodate thermal expansion and contraction. slope toward drainage points at an angle sufficient to drain reliably or accommodate tapered insulation that will slope toward drains. be adequately stiff to resist excessive deflection. Question 7 Which term does not belong with the others? Butt-joint glazing Question 8 Which of these roof slopes is a low-slope roof? A 15 percent sloped roof Question 9 A negative aspect of the protected membrane roof is: that maintenance requires removal of the insulation and ballast. Question 10 Which of these materials is the most effective vapor retarder? Double-ply roof felt with hot asphalt Question 11 Which of these low-slope roofing materials statements is wrong? Thermosets soften under heat. Question 12 Which of these metal roof types naturally ages over time to a dark-gray color? Zinc Question 13 To use a minimum 0.03-inch-thick metal sheet, you would have to buy: 0.81-mm-thick aluminum sheet. Question 14 Designing roofs as cool roofs primarily involves: specifying heat-reflecting roofing materials. Question 15 An extensive green roof does not: provide a growth basis for grasses and larger shrubs.

WEEK 13

#1 Earth reinforcing can be an economical alternative to the use of: conventional retaining walls. #2 Soldier beams and lagging are: sheet piling. #3 The item shown in the accompanying sketch is a synthetic rubber material. What is it called? Waterstop #4 An inadequate waterproofing method for a basement is: relying on the watertightness of the concrete walls and floor. #5 Settlement of a building after it is constructed is likely to be the greatest under which conditions? Foundation is bearing on clay. #6 Which of the following deals with strengthening and/or stabilizing foundations of existing buildings? Underpinning #7 Which of these loads is typically not considered for foundation design? Water in pipes # 8 A drainage mat (drainage blanket) is usually placed: vertically # 9 Which of these materials is suitable for building foundations? Gravel #10 One side of a building's footing rests on clay and the other side rests on a dense sand/gravel blend. The type of settlement you would expect is likely to be: differential settlement. # 11 According to ASTM D2487, a piece of stone with a 1.5-inch diameter is considered: gravel. # 12 Which of these piles are not hammered into the ground? Helical #13 Which of the following is not a method of bracing vertical sheeting in a deep excavation? Well points #14 Which of the following is not a slope support system for deep excavations? Caissons #15 Slurry walls are associated with: deep foundations. #16 Which deep foundation system would you specify if the bearing strata (i.e., bedrock) were very far (say, 300 feet) below the ground surface? Friction piles #17 In what area of the United States would you be most likely to find base isolators as part of a foundation system? California #18 Which of these is not true for retaining walls? A gravity retaining wall works like a vertical cantilever.

WEEK 2

#1 Which of these is a true statement? Concrete left in air after 7 days will have approximately 90 percent of its full strength at 28 days. #2 Self-consolidating concrete does not need: vibrating. #3 The highest hydraulic pressure on vertical formwork occurs: at the bottom of a wall. #4 Stirrups are: pre-bent shear rebars. #5 Concrete must be compacted in the forms to eliminate trapped air and to fill completely around the reinforcing steel and into all the corners of the formwork. What tool is used to accomplish this? Vibrator #6 Reinforcing steel and concrete are very compatible. Which of the following is untrue? Individually, each has a very high allowable tensile strength. #8 Fly ash, accelerators, superplasticizers, and air entrainment are added to a concrete mix to: alter its properties in different ways. #9 You need to speed up concrete construction. Which cement type gives you the required strength the fastest? Type III #10 Chairs and bolsters are used to: support reinforcing bars in beams and slabs, prior to concrete placement. #11 Which of these can provide two-way structural action? Concrete slab #12 Admixtures are used in concrete to: delay hardening. #13 Segregation will likely occur during concrete placement if the concrete is: dropped from a substantial height. #14 The amount of Portland cement in concrete can be reduced by: adding fly ash. #15 Posttensioning a concrete element (e.g., a beam, girder, or slab) helps the concrete element to: achieve a longer span than would otherwise be possible. #16 Which of the following is most closely associated with reinforcing steel? Welded wire fabric #17 Which of these is not true for columns? Stirrups are added for shear reinforcement. #18 Over time, concrete deforms because of: creep deformation #19 Which of the following is not affected by the addition of water to a concrete mix? Cost of the concrete to the customer

WEEK 3

What is #2 point to in the photo below? ties Question 2 What is #3 point to in the photo below? dowels and a key Question 3 This picture could be an example of a concrete slab for: a sidewalk Question 4 This photo is an example of: A one-way concrete joist system. Question 5 Insulating concrete forms (ICFs): place the insulation at the core of the concrete wall. Question 6 Form ties are associated with which concrete element? Walls Question 7 The accompanying drawing shows a: one-way solid slab system. Question 8 In this series of photos, picture (g) is showing floating of the slab. True Question 9 These connections between column and concrete slabs are typically found on one way concrete systems. False Question 10 The accompanying sketch depicts a: one-way concrete joist system. Question 11 Slip forming would be most beneficial when constructing: elevator shafts or storage silos. Question 12 This picture is an example of: consolidating wet concrete after pouring. Question 13 This series of pictures is showing the construction and finishing a concrete slab on grade: True Question 14 This picture shows an example of: A climbing system of formwork. Question 15 The waffle slab is: the two-way concrete joist framing system. #16 Which of the following is not associated with finishing a concrete slab on grade? Posttensioning tendons #17 In slab placement, what comes directly before concrete floating? Strike-off #18 Which of these concrete systems typically has the smallest construction height (floors and beams)? Two-way flat plate #19 This picture is an example of: a form tie for a concrete column a form tie for a concrete slab a form tie for a concrete beam a form tie for a concrete wall #20 Reshoring is: a set of supports for lower floors while upper floors get poured. #21 What is #1 point to in the photo below? reinforcing bars Concrete slab shrinkage cracks are primarily reduced by: adding wire-mesh rebar

WEEK 4

Question 1 The cracks or checks shown in the accompanying sketch result from: tangential shrinkage. Question 2 A nominal 2 x 6 is shown in cross section. The measured perimeter is most nearly: 14 inches. Question 3 Each of the following is a reason why structural wood panels (e.g., plywood, OSB, etc.) are used in lieu of boards for rough framing operations except: panels have a more pleasing grain pattern than solid wood boards do. Question 4 Each of the following is a reason why large wood beams are usually glue-laminated today rather than sawn except: laminated beams are more dimensionally stable than sawn beams. Question 5 Waterborne salts are associated with: wood preservatives. Question 6 If a piece of lumber is stamped S-DRY, which of the following statements will be true? The piece of lumber was surfaced when in a seasoned condition. Question 7 Lumber that has its smallest dimension greater than 5½ inches is called: timber. Question 8 Which of the following is not true for plainsawed lumber? It is commonly used for finish flooring, interior trim, and furniture. Question 9 Wood I-joists enjoy all these advantages over conventional dimensional lumber when used as floor or roof joists except: they are more fire resistant than conventional dimensional lumber. Question 10 Stressed skin panels (SSPs) and structural insulated panels (SIPs) are: premanufactured wood building components. Question 11 In this week's text reading, arsenic and copper are associated with: wood preservatives used to protect against insect or moisture decay. Question 12 Joist hangers, rafter anchors, post caps, beam hangers, and framing anchors are often used to connect framing members in wood light frame construction. What material are they usually made of ? Sheet metal (light gauge steel) Question 13 Oriented strand board is often used: as wall sheathing. Question 14 Which wood-species statement is true? Softwoods have a simple and uniform microstructure. Question 15 Which of these species is usually used where decay resistance is crucial? Western red cedar

WEEK 5

Question 1 Which of the following is not associated with achieving longer spans in heavy timber frame construction? The use of pintel Question 2 Beams used in heavy timber construction are sometimes firecut. This is done to: allow the beam to rotate out of the wall if it burns through. Question 3 A heavy timber (type IV-HT) building is primarily fire-protected by: specifying minimum wood cross-sections. Question 4 Which of these decking types is not permissible in type IV-HT construction? Box beams (joists with planking on top and bottom) Question 5 Common lateral-force resisting systems in heavy timber structures are: elevator shaft enclosure walls. diagonal brace. knee braces. Question 6 Cross-laminated timber (CLT) cannot: be left exposed at the exterior of a building. Question 7 Batter boards serve what purpose? They serve as reference marks for builders when foundation are being excavated and formed. Question 8 Which of the following would not be acceptable for use in a fire wall? Wood studs and plywood sheathing Question 9 Bridging in wood light frame structures is associated with: floor joists. Question 10 Anchor bolts are used in wood light frame construction to connect: sills to foundation walls. Question 11 Which of the following framing members is most likely to be preservative treated? Sill Question 12 What serves to brace exterior wall studs in a residential house against wracking? Exterior sheathing Question 13 In the accompanying drawing, identify the rafter. A Question 14 A significant benefit of I-joists and trusses over solid framing joists is: they allow for easier installation of building services (like ducts and electrical wires). Question 15 Exterior wall sheathing cannot: be left exposed as an exterior building surface.

WEEK 6

Question 1 Which brick manufacturing process produces a molded brick? Dry press Question 2 The terms vitrification, oxidation, water smoking, and flashing are all associated with: firing bricks in a kiln. Question 3 Quoins are associated with: corners of masonry walls. Question 4 Lime is added to modern masonry mortars because: it improves workability. Question 5 Higher brick kiln temperature leads to __________ bricks. darker Question 6 Reducing embodied energy for bricks requires: using fly-ash and steam curing. Question 7 Which of these statements is false? Solid brick must not contain any holes. Question 8 __________________________________are combinations of portland cement with limestone, blast furnace slag, or other cementitious materials, that may be used in place of ordinary portland cement alone in the cement-lime mortar mix. Blended hydraulic cements Question 9 Hydraulic cement mortars cure by _____________, not by drying: In a complex set of chemical reactions, they take up water and combine it with the constituents of the cement and lime to create a dense, strong crystalline structure that binds the sand particles and masonry units together. hydration Question 10 For commercial purposes, _____________________classifies stone used in building construction into six groups: Granite, Limestone, Quartz-Based Stone, Slate, Marble, and Other. ASTM C119 Question 11 Brownstone, bluestone, travertine, and limestone are sedimentary rock. Question 12 Which of the following is not a decorative CMU? Channel bond-beam block Question 13 Which of these is an incorrect statement? Limestone has a higher compressive strength than granite. Question 14 When a brick building is demolished, sound bricks may be cleaned of mortar and reused. True Question 15 Which pair are the major metamorphic stones used in building construction? Marble and slate

WEEK 7

Question 1 Composite steel decking reinforces the concrete slab in which direction? Perpendicular to beams and girders Question 2 Which of these is not an example of a cold-formed steel product? Steel angle Question 3 On a drawing (blueprint), a building element is referred to as "W10 x 33." This element could be a: beam. Question 4 Structural steel: is largely made from scrap automobiles. Question 5 You would be most likely to find leveling nuts near which item? A column base plate Question 6 The accompanying sketch depicts which type of connection? Moment Question 7 Which of the following is primarily responsible for preparing structural steel shop drawings, which show details of connections, exact spacing of bolt holes, anchor bolt sizes and locations, and so on, and for the site steel components that are ready to be assembled without further processing? Steel fabricator Question 8 Open-webbed steel joists are usually used in a commercial steel-framed building to support: roof decks. Question 9 Shear panels or shear walls are sometimes used in steel-framed buildings. Which component of wood light frame construction serves the same function as a shear panel/wall? Wall sheathing Question 10 Which of the following is not an acceptable means of making a steel column fire resistant? Use a water-filled box column. Question 11 A member on a steel drawing is identified as L5 x 4 x ⅜. This member is: an angle. Question 12 Which of the following has the principal function of providing lateral stability to a steel frame? Diagonal bracing Question 13 Shear studs are often welded to the top of a steel beam (see the accompanying sketch). These studs serve to: bond the beam to the concrete and cause the beam and concrete to act as a single structural unit. Question 14 Which of the following terms is not associated with achieving longer spans in steel? Backup bar Question 15 In the light gauge designation "250U050-54": U designates this as a channel.

WEEK 9