Tec 120 Final Exam
Stirrups are usually left projecting from the tops of precast concrete beams to create composite structural action between the beam and deck topping. TrueFalse
False
The deeper the sealant penetrates a joint in the cladding, the more watertight the joint will be. TrueFalse
False
Use figure 11.12 in text to answer this question. a W12 x 230 has an actual depth of 12.25 inches. TrueFalse
False
Walers are vertical supports for modular or site-built forms. TrueFalse
False
Bolts in the foundation are used to level and plumb steel columns. TrueFalse
True
Ceiling joists and collar ties are securely face-nailed to the rafters to resist the outward thrust of the roof structure. TrueFalse
True
Concrete columns may be cast in round paper tubes. TrueFalse
True
In northern climates, a vapor retarder should be installed between the conditioned space (heated or cooled) and the roof or wall insulation. TrueFalse
True
It is good practice to terminate the flashing over a shelf angle just beyond the face of the mortar joint. TrueFalse
True
Light-gauge steel sheet can be "cold-worked" to produce C-shaped sections (studs) for interior partitions and exterior wall construction. True or False
True
Manufacturers specify a minimum slope for each type of roofing covering material. TrueFalse
True
Mortar bed joint can be varied in thickness to align with architectural features such as the top of doors or windows. TrueFalse
True
Fire-protection of structural steel framing member is mandated by building codes for all buildings. TrueFalse
False
When tempered glass breaks it falls into small granules. TrueFalse
True
A curtain wall is typically used in buildings whose structural system consists of: A. Reinforced concrete or steel frame structure B. Insulated Concrete Form (ICF) structure C. Load-bearing reinforced-concrete wall structure D. Load-bearing masonry wall structure
A
A feature wall in Turner Hall is constructed of coursed ashlar. Which of the following BEST describes the arrangement of the stone? A. Courses ashlar is distinct from other stone masonry in that smaller square shapes are arranged into larger rectangular patterns that become regular parallel courses. B. Ashlar employs irregular shaped stones to create a rubble masonry appearance. C. Courses ashlar is distinct from other stone masonry in that small irregular shapes are arranged into larger octagon patterns that become regular rows (courses). D. Ashlar employs irregularly shaped stones that create curvilinear rows or courses of masonry.
A
A one-way concrete joist system can be thought of as a very thick on-way slab with the concrete between the joists left out because: A. This additional concrete from a full depth slab isn't doing much structurally work anyway. B. Light-weight aggregate is required for this system. C. Shear stresses in the slab are reduced in this way. D. The amount of reinforcing steel is increased as a structural trade-off.
A
An NFRC label on a window that reports a SHGC of 0.3. This is a measure of: A. solar transmittance B. insulation level C. fire rating D. visible light penetration
A
Dissimilar metals should not be used in a roof primarily because: A. Galvanic corrosion is likely to result B. Different details are needed for different metals C. Different tools are needed for different metals D. They will expand and contract at different rates
A
Ice dams usually occur: A. At the eave edge where the rafters or trusses meet the exterior wall. B. At the ridge of the roof. C. At the window header. D. At the gable edge where the gable end sits over the the exterior wall.
A
In site-cast concrete, column reinforcing steel are offset at the to: A. overlap the reinforcing for the column in the next story. B. compensate for curing shrinkage of the concrete. C. allow for the thickness of the column ties D. bring the column back into vertical alignment.
A
Most buildings that use open-web steel joists utilize the ___ series joists that are less than 2 feet deep. A. K B. CJ C. LH D. DLH
A
One option for a durable backup wall for brick veneer cladding in a building of non-combustible construction would be: A. steel studs with water-resistant gypsum sheathing B. precast concrete C. wood studs with water-resistant gypsum sheathing D. steel studs with Type X drywall
A
The ASTM E108 is used to test and classify the fire resistance of roofing systems. The roof coverings most effective against severe fire exposure are: A. Class A B. Class B C. Class C D. Class D
A
The diameter of a No. 7 reinforcing steel bar is approximately: A. 7/8th inch B. 7/16th inch C. 7 cm D. 7 mm
A
The most commonly specified type of Portland cement is A. Type I / II B. Type III C. Type PC1 D. Type C
A
The test specimen used for determining the compressive strength of concrete in the United States is a A. Cylinder measuring 6 in. diameter × 12 in. high B. Cylinder measuring 12 in. diameter × 6 in. high C. Cube measuring 6 in. ×6 in. ×6 in. D. Cube measuring 12 in.×12 in. ×12 in.
A
Tuckpointing or repointing is: A. replacement of mortar joints to repair defects B. the action of tooling the masonry C. accurately matching new mortar color to old D. replacement of lateral reinforcement joints
A
What admixture is used to reduce potential damage to the concrete from exposure to repeated freezing and thawing cycles? A. Entrained air B. Slag C. Pozzolan D. Water reducer
A
What is the name of the white powdery deposit that sometimes appears on the face of a masonry structure caused by the leaching of chemical salts by water migrating from within the structure to the surface? A. efflorescence B. curling C. spalling D. blistering
A
What type of concrete masonry unit (CMU) would be used to create a bond beam? A. lintel unit B. fluted unit C. stretcher unit D. control joint unit
A
What type of glass is produced by rolling a mesh of small wires into a sheet of hot glass? A. fire-rated glass B. laminated glass C. tempered glass D. security glass
A
When we determine the strength of concrete using the test specimens, we determine the concrete's: A. Ultimate compressive strength B. Modulus of elasticity C. Ultimate tensile strength D. Ultimate shear strength
A
Which of the following is NOT a standard component of a masonry cavity wall? A. lintel B. flashing C. weep hole D. air space
A
Which of the following is NOT an advantage of a built-up roofing system:: A. Lower labor and material installation costs B. True waterproof surface C. Low life cycle costs D. Ease of maintenance and access to roof top equipment
A
Which of the following is not a method of fastening steel structure members? A. adhesives B. rivets C. welds D. bolts
A
Which type of operable window tends to be the most airtight? A. Casement B. Horizontal sliding C. Polycarbonate D. Double-hung
A
According to material presented in class, the Eiffel Tower can expand and contract up to ______________ as a result of weather temperature extremes. A. 15 cm (about 6 inches) B. 50 cm (about 20 inches) C. 5 cm (about 2 inches) D. 150 cm (about 60 inches)
A (Made of cast iron)
Which of the following statements TRUE regarding 'Bleed Water' on a concrete slab? Select two. A. Bullfloating must be completed before any bleed water accumulates on the surface of concrete. B. Bleed water should be removed, because it is extra water which leads to poor strength development. C. Troweling must be completed before any bleed water accumulates on the surface of concrete. D. Bleed water rises to the surface of the slab as the aggregate particles settle in freshly placed concrete.
A and D
Which of the following materials are suitable for fireproofing steel columns? (May be more than one correct answer - Select all that apply) A. Concrete B. Type X Gypsum Board C. Spray-on fireproofing D. Metal lath and plaster
All of the above
The typical thickness of a mortar joint is: A. one wythe B. 3/8 inch C. ½ inch D. one cubit
B
The term GFRC is an acronym for A. Glass fiber-reinforced cement B. Glass fiber-reinforced concrete C. Glass fiber-restrained concrete D. Glass fiber-restrained cement
B
A concrete mix design has a specified water-cement ratio of 0.40. If the design calls for 560 LBS of cement per CY, how much water is required per CY? A. 120 LBS B. 224 LBS C. 284 LBS D. 560 LBS
B
A type of structural steel connection designed to stabilize a frame against lateral forces such as those generated by earthquakes is a: A. coped connection B. moment connection C. shear connection D. frame connection
B
ASTM specifications classify Portland cement in five basic types, referred to as: A. Types A, B, C, D, and E B. Types I, II, III, IV, and V C. Types PC1, PC2, PC3, PC4, and PC5 D. Types X, Y, Z, P and Q
B
Beginning in the mid-1850s, the ______________ process was introduced, which lead to the production of plentiful and inexpensive steel for the first time. A. Castellion B. Bessemer C. Eiffel D. Wrought iron
B
Building codes require residential occupancies to have an emergency escape/rescue window in each bedroom. What are the minimum dimensions of an emergency egress window? A. At least 6.7 SF with a clear wide >= 20 inches and clear height >= 24 inches. B. At least 5.7 SF with a clear wide >= 20 inches and clear height >= 24 inches. C. At least 5.7 SF with a clear wide >= 24 inches and clear height >= 20 inches. D. At least 6.7 SF with a clear wide >= 24 inches and clear height >= 20 inches.
B
In cool/cold climates, such as Illinois, the vapor barrier is installed: A. under the exterior finish B. under the interior finish on the heated side of the structure C. between the exterior sheathing and the framing members D. as close to the center of the wall as possible
B
One of the earliest methods of fireproofing structural steel members was to: A. frame steel with layer(s) of gypsum board B. encase the steel in concrete C. use a spray-on cementious mixture D. place a water shell around the steel
B
Portland cement sets and gains strength because of a chemical reaction with A. Aggregates B. Water C. Carbon dioxide in the air D. Oxygen in the air
B
Segregation of the aggregate and cement paste in a concrete mix occurs when: A. fine aggregate is used in the mix B. concrete is not placed properly C. aggregate is not adequately washed D. non-potable water is used in the mix
B
Structural steel shapes, such as W, C, and L, are made by: A. Cold rolling of steel blooms B. Hot rolling of steel blooms C. Casting molten steel to shape D. Bending and welding heated steel plates
B
The chemical process by which concrete and mortar harden is called: A. drying B. hydration C. air-entraining D. dehydration
B
The most common type of shingle used for light-frame roofing is: A. clay tiles B. fiberglass or asphalt shingles C. standing seam metal roofing D. cedar shingles or shakes
B
The most important reason for using column ties in a concrete column is to: A. Increase the shear strength of a column B. Prevent the buckling of longitudinal column bars C. Increase the compressive strength of a column D. Allow the formwork to be tied to the longitudinal bars in the column
B
This steel alloy develops a tenacious oxide coating when exposed to the atmosphere that, once formed, protects against further corrosion and eliminates the need for paint or another protective coating: A. rolled steel B. weathering steel C. tempered steel D. structural steel
B
What type of slab finish is required for a factory floor? A. Wood float finish B. Steel trowel finish C. Broom finish D. Starightedged
B
Which of the following finishes is NOT suitable for aluminum cladding components: A. anodized finishes B. polyurethane varnish C. fluoropolymer finishes D. powder coatings
B
Which of the following is NOT a slab on grade concrete structure. A. road or street B. crawlspace foundation wall C. sidewalk D. parking lot
B
Which of the following is NOT an accepted method for securing a single-ply roof membrane to the roof deck: A. Gravel ballast B. Built up applications of coal tar C. Concrete block ballast D. Fully adhered or mechanically fastened
B
Which of the following is not a precast concrete floor panel. A. single tee B. inverted tee C. double tee D. hollow core slab
B
Which of the following is the BEST example of a working joint that allows for expansion and contraction of roofing materials? A. Spray-foam roof B. Typical 3-tab or architectural strip fiberglass or asphalt shingle C. BUR or Built Up Roof D. Mechanical fastened EPDM roof
B
Which of the following methods, although acceptable, is NOT commonly used to create lintels for openings in CMU walls? A. Steel T or double steel angle. B. Form and pour a concrete beam to span the opening. C. Reinforced block lintel comprised of bond beam units. D. Precast concrete lintel.
B
Which of the following mounting systems should NOT be used to secure stone cladding to a back-up wall? A. Steel anchor plates B. Corrugated metal ties C. Steel anchor clips D. Steel subframe
B
Which of the following mounting systems should NOT be used to secure stone cladding to a back-up wall? A. steel anchor clips B. corrugated metal ties C. steel subframe D. Steel anchor plates
B
Which of the following statements regard a W18×35 structural steel member is INCORRECT? A. Nominal depth is 18 inches. B. Cross section area is 18*35 = 630 square inches. C. W represents Wide Flange. D. Unit weight (lb./ft) is 35.
B
___ are used primarily on steep roofs. They can be made of asphalt, wood, fiberglass, slate, concrete, steel. A. Rolled roffing B. Shingles C. BUR D. Single-ply membrane
B
How is the slope created for a low slope roof? (Select two) A. EPDM roofing can be rolled and mechanically fastened to create the desired slope. B. Tapered roof insulation can be installed to create the desired slope. C. Built-up roofing can be extensively built up as needed to create the desired slope. D. Roofing bar joists or trusses can be designed and installed to create the desired slope.
B and D
The stirrups in a reinforced concrete beam are used to A. Increase the strength of beam in bending B. Reduce the deflection of the beam C. Increase the strength of the beam in shear D. Increase the durability of the beam
C
Use the table in Chapter 18 of the textbook to answer this question. A fire door in a 2-hr rated fire wall assembly must have a minimum fire-rating of: A. 30 minutes B. 1 hour C. 1-1/2 hours D. 2 hours
C
What admixture can be used to improve the placing of concrete in forms or slabs with extensive reinforcement steel? A. Bonding agents B. Permeability-reducing agents C. Superplasticizer or high-range water reducer D. Damp-proofing agents
C
What framing materials provide a suitable back-up wall for brick veneer cladding in a non-combustible building? A. steel studs with regular drywall B. fire treated wood studs with regular drywall C. steel studs with water-resistant gypsum sheathing D. wood studs with water-resistant gypsum sheathing
C
A fire-resistant material inserted into a space between a curtain wall and a spandrel beam or column to retard the passage of fire through the space is called _______________________. A. PEC B. Scupper C. safing D. EIFS
C
A fully adhered EPDM membrane would most likely be used for a: (Note: EPDM = Ethylene Propylene Diene Monomer) A. Single ply high-slope roof without ballast B. Spray applied foam roof of any slope C. Single ply low-slope roof with or without ballast D. Multi-ply built up roof with or without ballast
C
According to the textbook author, which of the following is NOT a primary function of building cladding: A. Control air leakage and thermal gain B. Control light and sound C. Accommodate thermal expansion and contraction D. Prevent moisture from entering the structure
C
Green roofs or vegetated roofs have many benefits to the environment. Which of the following is NOT an advantage of green roofs: A. Reduce the heat island effect in urban areas. B. Reduce the transmission of noise through the roof system. C. Increased heating and cooling costs to keep the plants roots at a near constant temperature. D. Improve air quality E. Reduce stormwater runoff and increased habitat for birds.
C
If steel structural is braced against lateral forces such as wind load with a rigid core of concrete walls (e.g. around the stair tower or elevator shaft), the method of bracing is called: A. moment connection B. shear connection C. shear walls of panels D. moment panels
C
In a point-supported glass curtain wall, the connectors that hold the glass are A. Concave shaped B. Convex shaped C. Spider shaped D. Beetle shaped E. None of the above
C
In structural steel, camber refers to: A. Upward deflection of a beam to counter downward deflection by a live load B. Downward deflection of a beam to counter upward pressure of seismic loads. C. Upward deflection of a beam to counter downward deflection by a dead load D. Permanent downward deflection of a beam
C
In which ISU building can you observe an exposed concrete ceiling that resulted from utilizing a two-way waffle slab forming system? A. Center for the Performing Arts B. Turner Hall C. Milner Library D. Student Fitness Center
C
Joints in brick or CMU masonry are tooled an hour or two after laying to give a neat appearance and compact the mortar into a profile that meets the visual and weathering requirements of the wall. Which of the following tooling profiles is/are appropriate for climates with extensive freeze-thaw cycles? A. Corbel B. Raked or Stripped C. Concave or Vee D. Struck
C
One approach to making buildings watertight is to create "barrier walls." Which of the following is NOT a concern of the barrier wall design? A. joints must be perfectly sealed. B. sealants are exposed to destructive weather forces. C. rainscreens mitigate drainage and drying concerns. D. building movement may tear sealant.
C
One of the challenges of masonry cavity wall construction is that clay brick and concrete block behave differently in thermal expansion and contraction. Which of the following is TRUE of brick and block movement? A. Block expands and brick shrinks B. Both brick and block expand, but at different rates C. Brick expands and block shrinks D. Both brick and block shrink, but at different rates
C
Soldiers, sailors, stretchers, and headers are most closely related to: A. The type of cavity wall construction B. The type of joint tooling used to compact the mortar C. The way bricks are positioned in the wall D. The type of supporting lintel used to span opening in brick masonry walls
C
The diameter of a No. 10 reinforcing steel bar is approximately: A. 10/16th inch B. 10 mm C. 1-1/4 inch D. 2-1/2 inch
C
The major advantage of air-entrained concrete is: A. greater tensile strength B. resistance to sulfate attack C. resistance to freeze-thaw cycle damage D. architectural appearance
C
What is the name of the admixture that reduces the amount of mix water while retaining the same workability thereby resulting in higher-strength concrete? A. accelerator B. retarder C. water-reducer D. air-entrainment
C
What is the name of the concrete delivery method when concrete ingredients are mix in the truck on the way to the construction site? A. Central batch mix B. Site-mix C. Transit-mix D. Ready-mix
C
What is the overall height of an eleven (11) course concrete block (CMU) foundation wall? Hint: CMU plus mortar joints A. 111 inches B. 84 inches C. 88 inches D. 96 inches
C
What manufacturing method accounts for almost all domestic glass production? A. crown glass B. plate glass C. float glass D. drawn glass
C
What type of slab finish is required for a sidewalk? A. Steel trowel finish B. Straightedged C. Broom finish D. Wood float finish
C
Which of the following does not represent a open web steel joist series? A. DLH-series B. K-series C. J-series D. LH-series
C
Which of the following is not an advantage of precast concrete panels and structural members? A. Weather conditions are a factor in the fabrication of the concrete members. B. Quality control C. Transportation from production facility to job site. D. Environmental control of production
C
Which of the following is the correct term for an opening in an exterior wall or parapet through which water can drain off of a flat roof. A. Bur B. Cant C. Scupper D. Area divider
C
Which of the following is the correct term for the region of an exterior wall that projects above the level of the roof. The purpose of the projecting wall may be architectural or to screen rooftop mechanical equipment and limit the spread of fire. A. Scupper B. Cant C. Parapet D. Bur
C
Which of the following steel shapes is most commonly used for the structural frame of buildings? A. C-shape B. M-shape C. W-shape D. S-shape
C
____ are frequently used for domes, shells, and other complex shapes that are difficult to roof by other methods. A. Shingles B. Elastomeric membranes C. Fluid-applied roof membranes D. EPDM membranes
C
Three types of rock are commonly quarried to produce building stone. Match the type of building stone to its rock source. A. Sedimentary rock B. Metamorphic rock C. Igneous rock 1. Granite - nonporous, hard, strong and durable 2. Limestone - does not accept a high polish 3. Marble - recrystalized form of limestone
C A B
Which of the following statements are true of the production of structural steel? Select all that apply. A. Beam blanks or blooms can be further cold rolled to the specified finished size. B. The output of the a steel mill is typically a finished size structural steel component (e.g. beam). C. The output of the a steel mill is typically a beam blank or bloom. D. Beam blanks or blooms can be reheated and hot rolled to the specified finished size.
C and D
A concrete "slump test" is used to determine the: A. weight of a sample batch of concrete B. length of time since the Cubs last won the world series C. type(s) of admixtures used D. consistency of a mix
D
A shear connections is developed at the connection of a steel girder to a steel column when ___. A. both the flanges and the web of the girder are attached to the column B. only the flanges of the girder are attached to the column C. only if the attachment is welded D. only the web of the girder is attached to the column
D
A stick system glass curtain wall is comprised of: A. Mullions and glass. B. Mullions and spandrel material in a preassembled unit. C. Spandrel materials and glass. D. Mullions, spandrel materials, and glass.
D
A structural steel shape with the designation W12 x 50 would weigh: A. 12 x 50 lbs/cubic foot B. 12 lbs/linear foot C. 50 lbs/cubic foot D. 50 lbs/linear foot
D
According to the textbook, which of the following BEST describes a low-slope roof: A. slope < 1:12 B. essentially flat C. slope > 3:12 D. slope < 2:12
D
Aggregate for concrete is generally subdivided into coarse aggregate and fine aggregate. The distinction between the two types of aggregate is based on: A. strength B. surface texture C. density D. particle size
D
As the carbon content of steel decreases from 3% in cast iron to 0.3% in mild structural steel, the metal becomes: A. harder and more brittle B. more elastic and heavier C. heavier and harder D. softer and more flexible
D
Brick is specified by "Grade" related to weathering and "Type" related to appearance consistency. What brick would be specified for face veneer on an office building in Chicago if the least variation in size and shape were required? A. Grade MW, Type FBX B. Grade SW, Type FBA C. Grade MW, Type FBS D. Grade SW, Type FBX
D
Cladding must be designed to prevent moisture penetration through gravity, momentum, surface tension, capillary action., and air pressure differences. Which of the following is TRUE regarding cladding and water penetration: A. Gravity: the panel should slope downward from outside to inside B. Capillary action: a single narrow horizontal channel should be left open to allow water to drain C. A Pressure Equalization Chamber (PEC) should be placed on the outdoor side of the cladding D. Momentum: a labyrinth or rise should be built into adjoining panels
D
Ganged forms are used for: A. repetitive placement of large floor slabs B. tilt panels C. columns D. repetitive placement of large wall sections
D
How many square feet of concrete poured to 4 inches depth will be covered by ONE cubic yard of concrete? A. 3 SF B. 9 SF C. 27 SF D. 81 SF
D
Steel structures can gain lateral stability by connecting them to a rigid core, such as reinforced concrete elevator shafts or utility cores. The walls that comprise the ridge core are typically referred to as: A. diaphragm walls B. moment walls C. brace walls D. shear walls
D
The "Design Strength" of a concrete mix is typically measured at: A. 3 Days B. 7 Days C. 14 Days D. 28 Days
D
The process of compacting freshly placed concrete in the forms and around the reinforcing steel to remove air pockets is called: A. Hydration B. Compression C. Aggregation D. Consolidation
D
What is the name of the system in which concrete slab and wide-flange steel members work together as a single structural unit? (Hint: To make this happen shear studs may be welded to steel beams through the corrugated metal decking that supports the concrete slab.) A. coped beam construction B. castellated beam construction C. shear panel construction D. composite construction
D
What is the purpose of spraying a curing compound on a freshly-finished concrete slab? A. Adds an additional coat of water to the surface of freshly-finished concrete to inhibit bleed water from reaching the surface. B. Adds an additional coat of water on the freshly-finished concrete to reduce potential defects such as scaling and blistering. C. forms a coating on the surface of a freshly-finished concrete slab that reduces hydration and increases the speed at which the concrete sets. D. forms a coating on the surface of a freshly-finished concrete slab that retains the moisture in the slab to promote full hydration of the concrete.
D
What is the purpose of spraying on the surface of a freshly-finished concrete slab ? A. Adds an additional coat of water on the freshly-finished concrete to reduce potential defects such as scaling and blistering B. Adds an additional coat of water on the freshly-finished concrete to inhibit bleed water from reaching the surface. C. forms a coating on the surface of a freshly-finished concrete slab that reduces hydration and increases the speed at which the concrete sets. D. forms a coating on the surface of a freshly-finished concrete slab that retains the moisture in the mix and promotes full hydration of the concrete.
D
Which of the following is NOT a function of mortar: A. Bond masonry units together into a structural assembly B. Allow for differential sizes and spacing of bricks C. Resist water penetration D. Allow movement between the courses of masonry
D
Which of the following is NOT an advantage of low-slope roofs? A. Can cover buildings of any horizontal extent (e.g. 1,000,000 SF distribution center). B. Can be adapted in some cases for use as habitable outdoor space. C. Utilize a simpler geometry than steep roofs. D. Less prone to standing water and progressive collapse from snow loads.
D
Which of the following statements is NOT an advantages of structural steel framing: A. Steel can span long distances. B. Steel is non-combustible C. Steel has great compressive and tensile strength D. Steel does not need to be fireproofed E. Steel erection can occur year round.
D
Which technique is used to reduce heat transfer by conduction in metal window frames? A. conduction break B. conduction bridge C. thermal bridge D. thermal break
D
___ is assembled in place from multiple layers of asphalt-impregnated roofing felt bedded in layer of hot bitumen. A. Fluid-applied roof membrane B. Fiberglass shingle roofing C. Single-ply roof membrane D. Built-up roof (BUR)
D
which of the following is NOT a standard precast, prestressed slab element? A. hollow core plank B. single tee C. double tee D. hollow tee beam
D
In relation to its compressive strength, the tensile strength of concrete is A. Much higher B. Slightly higher C. Nearly the same D. slightly lower E. much lower
E
Match the steps in concrete slab finishing with the correct order number. A. fourth B. sixth C. second D. third E. sixth F. first Screeding or strike off Initial floating Initial edging and controls joint movement Second time floating and touch up edges trowel and possible broom Curing
F C D A E B
A gable roof is built using a combination of opposing common rafters and hip rafters attached to a ridge board. TrueFalse
False
Most precast concrete floor panels are covered with a cast in place concrete topping. TrueFalse
False
Polymer-based EIFS are thicker and more resistant to punctures and dents than polymer-modified portland cement EIFS. TrueFalse
False
Roofing is covered in section 8 of the CSI Masterformat sections. TrueFalse
False
Solar reflectance (or albedo) is measured on a scale from 0 to 1, where 1 represents a material that reflects ALL solar radiation and 0 represents a material that absorbs ALL solar radiation. Therefore, "cool roofs" are associated with lower reflectance values. TrueFalse
False
When creating a control joint in a concrete masonry wall, it is important to make sure that all reinforcing bars and lateral joint reinforcement is fully continuous through the concrete wall in order to maintain the structural integrity of the wall. TrueFalse
False
According to the textbook, concrete that is not cured at all will typically reach only 50% of its design strength. True or False? TrueFalse
True
A properly installed polymer-based EIFS system is comprised of extruded polystyrene foam insulation, metal or plastic reinforced mesh, and a relatively thin synthetic stucco finish coat. TrueFalse
True
A shear connection between a steel beam and a steel column can be made without connecting beam flange to the column. TrueFalse
True
A typical glass curtain wall is provided with weep holes to drain infiltrating water even though it is sealed from both the inside and the outside with gaskets or tapes TrueFalse
True
No mortar is "best," however it is essential to select the correct mortar for the application. The designation utilized to categorize mortar strength originated from selecting every second letter of "MaSoN wOrK." Therefore, Type M mortar is the strongest. True or False TrueFalse
True
Precast beams camber up from the casting bed as soon as the pretensioning force is released in the tendons. TrueFalse
True
Precast concrete production encourages the reuse of formwork, reducing waste. TrueFalse
True
Precast slabs must always be topped with site-cast concrete. TrueFalse
True
Standing seam is a type of metal roofing. TrueFalse
True
Steam curing of precast concrete elements develops the full strength of the concrete many times faster than curing at ambient temperature. TrueFalse
True
The CSI MasterFormat categorizes masonry work in Division 04000. True or False
True
The luffing-boom crane is useful in congested situations of steel frame erection. TrueFalse
True
The primary purpose of longitudinal steel bars in a reinforced concrete beam is to overcome the weakness of concrete in tension. True or False
True