CSM 205 Final

Flashing is used in masonry cavity wall construction can be made of each of the following except: Ashlar Copper sheet metal Stainless Steel sheet material Plastics Elastomeric Materials

Ashlar

Slump test results for standard concrete should be in the range of: 5-8" 2-6" less than 2" 8-10" More than 12"

2-6"

In the US, the diameter of a number 8 reinforcing bar is _______inch(es).

8 * 1/8 = 1inch

You would most likely find leveling nuts near which item? A coped beam to beam connection An arc welding electrode A column base plate Exterior X bracing on a steel frame Beam to column moment connection

A column base plate

The sketch below is an area divider used on a low slope roof. The purpose of the area divider is to: -Accommodate large differential movements between adjoining parts of the building -Accommodate some movement in the membrane itself -Channel water towards roof drains -Channel water towards scupper drains -Help the membrane resist the detrimental effects of UV radiation

Accommodate for some movement in the membrane itself

Post-tensioning a concrete element (Beam, girder, or slab) helps the concrete element: -Achieve longer spans than would otherwise be possible -Better resist the rigors of freezing/thawing when exposed to the weather -Help reduce corrosion in the reinforcing steel -Be recycled much easier -Be put into service without using supplementary cementitious materials

Achieve longer spans than would otherwise be possible

Cold formed steel framing members may be used for: Rafters Joists Studs Headers Sole plates and top plates All of the above

All of the above

Light gauge members may be joined with: Screws Welds Special clenching tools Special pneumatically-driven pins All of the above

All of the above

Ordinary, non-prestresed reinforcing is used in precast concrete elements for: -Attaching weld plates -Top reinforcing over cantilever points -Shear reinforcing in stems of tees and double tees -Reinforcement of flanges of tees and double tees -Reinforcement of wall panels -Additional reinforcing around openings in precast elements -All of the above

All of the above

Roof decks on low slope roofs must: -Contain enough joints to accommodate thermal expansion and contraction -Be adequately stiff to resist excessive deflection -Resist wind uplift forces -Slope towards drainage points at an angle sufficient to drain reliably or accommodate tapered insulation that will slope towards drains -All of the above

All of the above

The following materials are suitable for fireproofing steel columns: Concrete Brickwork Metal lath and plaster Gypsum Board Spray on fireproofing All of the above

All of the above

Which of the following is not an acceptable means of making a steel column fire resistant? Wrap it with drywall Apply intumescent mastic/paint Encase the column in concrete Use a water-filled box column All of the above are acceptable

All of the above are acceptable

Fly ash, accelerators, superplasticizers, and air-entrainment are added to a concrete mix to: Increase its strength Increase its resistance to cracking Alter its properties in different ways Increase the concretes abrasion resistance Reduce the amount of reinforcing steel required

Alters its properties in different ways

A member on a steel drawing is identified as L5 x 4 3/8. This member is: A channel A wide flange beam A wide flange column A precast concrete lintel An angle

An angle

A composite masonry wall is so named because of its: -Structural steel embedded in the CMU -Two wythes of brick sandwiching a core of grout -Polymers added to the mortar to increase strength -Multiple wythes of rigid insulation alternating the wythes of brick -An outer wythe of stone or brick and back up wythes of CMU

An outer wythe of stone or brick and back up wythes of CMU

Batten seam, standing seam, and flat seam all describe parts of: Built up roofing systems Types of EMPD roofing membranes Methods for glazing large lights Framing methods for hollow steel doors Architectural Sheet metal roofing

Architectural sheet metal roofing

Which of the following terms is not associated with achieving longer spans in steel? Joist Girder Backup Bar Castellated Beam Rigid Frame Members Plate Girder

Backup Bar

On a drawing, a building element is referred to as W10x33. This element could be a: Footing Building separation joint Beam Mullion in a glass and aluminum curtain wall Two way Slab

Beam

Shear studs are often welded to the top of a steel beam. These studs serve to: Strengthen connection to an adjoining member Ensure proper moment connection to adjoining membr Bond that beam to concrete and make 1 unit Anchor metal decking to the beam None of the above

Bond the beam to the concrete and cause the beam and concrete to act as a single structural unit

Galvanized reinforcing bars are often used in _______ structures.

Bridge

Which of the following materials is not used on a steep roof? Clay tiles wood shingles Slate Built up roofing system Asphalt shingles

Built up roofing system

Which doesn't belong with the others? Ballast Butt joint glazing Rigid Insulation Single ply membrane Built up membrane

Butt joint glazing

Concrete is sometimes pre-tensioned. This is sometimes performed off site, at the manufacturers plant. Which of the following elements is least likely to be pre-tensioned? A double tee slab Girder Beam Cast in place elevated slab in parking garage Single Tee Slab

Cast in place elevated slab in parking garage

In roofing applications, ballast can perform all of the following functions except: -Hold the roof membrane against wind uplift -Protect the roof membrane against UV radiation -Protect the roof membrane from physical wear -Contribute to air circulation under the roof membrane

Contribute to air circulation under the roof membrane

Which of the following is not affected by the addition of water to concrete mix? Cost of the concrete to the customer The concretes slump The concretes future strength The concretes propensity to develop shrinkage cracks The ease of placing the concrete by the masons/laborer

Cost of concrete to the customer

Which of the followings principle function is to provide lateral stability to a steel frame? Shear Connections Diagonal Bracing Anchor Bolts High strength bolts All of the above

Diagonal Bracing

Water that is suitable for _______ is generally suitable for making concrete.

Drinking

Segregation will likely occur during concrete placement if the concrete is: Screeded Not troweled properly Under-vibrated Dropped from a substantial height All of the above

Dropped from a substantial height

After two precast concrete elements are joined, the exposed metal connectors that aren't covered by a slab topping are usually: Cut with a diamond blade saw Dry packed with Portland cement grout Covered with spray on fireproofing material Epoxy grouted together Ignored (not treated)

Dry packed with Portland cement grout

Which material would you be least likely to see being used as a roof deck? Precast concrete Cast in place concrete EMPD Membrane Structural wood panels Corrugated Steel

EMPD membrane

The holes that are punched through steel framing members are for: Ventilation Insulation Vapor Control Electrical Wiring Fire Control

Electrical Wiring

Slip forming would be the most beneficial while constructing: Shallow Footings Slabs on grade Elevator shafts or storage silos Waffle Slabs Precast double tees

Elevator shafts or storage silos

Concrete masonry wall is to control joint as brick masonry wall is to: Building separation joint Seismic separation joint Expansion joint Settlement Joint Abutment Joint

Expansion Joint

Web stiffeners are required at: ???? Mid span of all joists Mid height of all studs Mid height of studs over 10' tall only Exterior and interior joist bearings Eave overhangs

Exterior and Interior joist bearings???

A CJ is a movement joint which cuts completely through the depth of the slab.

False

A superplasticizer is an admixture which is used to make concrete dry more quickly.

False

A transit/ready-mix truck delivers cement to the jobsite.

False

An expansion joint is a movement joint used to provide a predetermined crack location for a concrete slab undergoing drying shrinkage.

False

Bars extending from the tops of columns are normally bent over at 90 degree angles to overlap with bars of future column projection.

False

Control joints are most necessary in post tensioned slabs on grade.

False

Curing compounds are used more often in concrete shear walls than in concrete slabs.

False

Epoxy coated reinforcing steel is often used because it is stronger than uncoated steel.

False

Grade 60 steel has a yield strength of 60PSI.

False

In constructing a bridge over a small river, type IV cement should be used.

False

In long distance transport of concrete, its temperature is maintained at a subfreezing level to slow the curing reaction.

False

In the US, a standard bag of cement contains 1.5 cubic foot of cement.

False

Nosing is provided in concrete staircases at a time of casting.

False

Self-consolidating concrete is produced by adding more water in concrete.

False

Slab floating is done several hours after slab troweling.

False

Stirrups are used in reinforced concrete beams and slabs to counteract the tensile stresses.

False

The basic theory of reinforced concrete construction is to: Put the reinforcing steel in areas of high compressive stresses.

False

The quality of cement is established by ASTM C150, which identifies six different types of Portland cement.

False

The strength of cured concrete depends primarily on the aggregate-cement ratio.

False

The thickness of the slab portion of a two way waffle slab is typically more than the thickness of a one way slab.

False

Vertically projecting dowels of steel reinforcing bars are usually installed in the footing after the concrete has been poured.

False

Which of the following concrete elements is least likely to be precast? Wall Panel Column Footing Slab Element Beam/Girder

Footing

Which is not a method of permanently joining precast concrete members in a building? Gravity connectors (unconnected) Bolting Grouting Welding Post-tensioning

Gravity Connectors where each members is unconnected to adjacent members

Light gauge metal floor framing does not accept the following sub-floor material: Corrugated steel decking Plywoood OSB Gypsum Sheathing

Gypsum Sheathing

Reinforcing steel and concrete are very compatible. Which of the following is untrue? -The two have similar coefficients of thermal expansion -Individually, each has a very high allowable tensile strength -Concrete bonds well to reinforcing steel -They are chemically compatible; steel is protected from corrosion by the alkaline chemistry of concrete

Individually, each has a very high allowable tensile strength

The sketch depicts which type of connection? Shear Moment A toe plate connection A splined connection A joist girder connection

Moment

Which doesn't belong with the others? Expansion joint Mortar Joint Control Joint Isolation Joint

Mortar Joint

The width of the flange W12x14: Is 12" Is 14" Is the standard 6" dimension used for all W sections Must be looked up in a handbook Is up to the mill that produces it

Must be looked up in a handbook

The sketch below depicts a: One way solid slab system One way concrete joist system Two way flat plate system Waffle slab system Two way solid slab system

One way concrete joist system

The drawing below shows a: One way solid slab system One way flat plate system Two way solid slab system Two way flat slab system Two way concrete joist system (Waffle Slab)

One way solid slab system

Which of the following is not associated with finishing a concrete slab on grade? Post tension tendons Floating Troweling Strike-off

Post tension tendons

Which of the following materials is typically not part of an EIFS system? Post tensioning tendons Metal or plastic reinforcing mesh Fiish coat of stucco like material Rigid plastic foam insulation board Base coat of stucco like material

Post tensioning tendons

Standard steel structural shapes are produced by: Casting Forging Die-forming Rolling Milling

Rolling

Open webbed steel joists are usually used in a commercial steel framed building to support: Loads above openings IE overhead doors Stairways Roof Decks Joist Girders Elevator Shafts

Roof Decks

Which of the following is responsible for preparing structural steel shop drawings and for the site steel components that are ready to be assembled without further processing? A/E GC Steel Fabricator Steel Erector Steel Manufacturer (The Mill)

Steel Fabricator

Chairs and bolsters are used to: -Keep formwork from moving during concrete placement -Maintain proper spacing between members during installation of precast concrete members -Help during post-tensioning of concrete slabs -Splice reinforcing bars that require greater strength -Support reinforcing bars in beams and slabs, prior to concrete placement

Support reinforcing bars in beams and slabs, prior to concrete placement

The one distinguishing characteristic of a welded moment connection is: Its a seated connection Its welded rather than bolted The beam flanges are attached with full depth welds There are no bolts anywhere in the connection It employs stiffener plates

The beam flanges are attached with full depth welds

The waffle slab is: The two way concrete joist framing system A one-way floor and roof framing system The one way concrete joist framing system An unreinforced floor and roof framing system None of the above

The two way concrete joist framing system

In column reinforcement, ______ prevent the vertical bars from buckling outward.

Ties

A No. 4 bar is 1/2" in diameter.

True

A calcium chloride solution can be added in cold weather to speed up the hardening process and produce higher heat.

True

A key in the top of a concrete footing is a form of mechanical anchorage with the wall.

True

Concrete made from expanded shale aggregate is nearly as strong as normal concrete.

True

Exceeding the slump limit is a valid reason for rejecting a load of concrete.

True

Fragments of demolished concrete can be used as aggregate for new concrete.

True

Higher strength concrete for columns can be produced with the aid of silica fume.

True

In slabs supporting heavy loads, the shear stresses around the tops of the columns are reduced by the use of drop panels and mushroom capitals.

True

Knee boards are used to prevent footprints on the slab.

True

One way slab action is assumed when the dimension of one side of a slab is more than twice the dimension of the other side.

True

Overlapping the horizontal reinforcing steel at wall intersection helps to maintain reinforcement continuity.

True

Proper size distribution of aggregate particles must be used in concrete to reduce voids.

True

Shortcreting can be used for repairing damaged concrete columns.

True

Slabs which are poured in hot/windy weather without surface sealing can result in slab cracking.

True

Slip forming is useful for elevator shaft structures.

True

The average allowable tensile strength of wood is greater than that of concrete.

True

The bottom reinforcing steel in a simple span concrete beam resists the tensile stresses in the bottom of the beam.

True

The hydration reaction which strengthens concrete will be halted if water evaporated from the concrete mixture.

True

The slump test is performed to determine workability and consistence of concrete.

True

The process or raking and cutting out defective mortar and replacing it with fresh mortar is called: Reglet Installation String lining Parging Tuck Pointing

Tuck Pointing

In construction, perms are associated with: Asphalt shingles Architectural sheet metal roofs Rigid Insulation Vapor Retarders

Vapor Retarders

Concrete must be consolidated in the forms to eliminate trapped air and to fill completely around the reinforcing and into all corners of formwork. What tool is used to do this: Tremie Vibrator Bolster Studrail Rustication Strip

Vibrator

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? Floor joist Exterior Wall stud Ratter Prefab wood truss Wall sheathing

Wall Sheathing

Form ties are associated with which concrete element? Slab on grade Elevated Slab Walls Caissons Spread Footings

Walls

Efflorescence that appears on the surface of a wall of brick, stone, or concrete masonry can be caused by: Water soluble salts present in mortar, brick, stone Too little water used in the mortar mix Mortar joints that are too thick Excessive quantities or iron in the CMU, stone, or brick Failure to use masonry ties

Water soluble salts in mortar, brick, stone, or CMU

Which of the following is most closely associated with reinforcing steel? Non shrink grout Concrete admixtures Portland Cement Concretes Slumo Welded Wire Fabric (WWF)

Welded Wire Fabric

Which of the following is part of a GFRC (glass fiber reinforced concrete) curtain wall panel? Welded frame of steel studs Post tensioning cables Extruded aluminum mullions Spandrel Glass A shelf angle

Welded frame of steel studs