M&M I Wood and Steel Exam

Hardwoods are often used as flooring, finish veneers and structural lumber.

False (they are not used as structural lumber due to expensiveness.)

You see a 2x4" wood stud wall at 16" o.c. with single top plates. This wall is most likely not a bearing wall.

True (double top plates are more common and have an increased bearing capacity compared to single)

Stabilizer angles, girders, flanges, chamfered beam, coped beam, splice, bearing plates, clinker angles and shims are *all* used in steel construction.

False

Wood is considered a "sustainable" design material partially because it is the only major structural material that is renewable *and* wood has significantly lower embodied energy content than other structural materials.

True

Typically, you weld in the field and bolt in the shop because of the low cost of high strength bolts.

False

If the flanges are *rigidly attached to the web* of the column, it is typically a _____ connection.

moment

a WT 5 x 15 is most likely a ____ lbs/linear foot _____________.

15; structural tee

Sheet steel is made from *low-carbon steel* and most steel used in building construction is carbon steel.

True

Where are termite shields typically located?

The foundation sill plate

The Steel Joist Institute classifies joists into three categories: K-series joists (depth 8-30 inches), LH-series joists (18" to 48") and DLH-series joists (52" to 72").

True

True or False; ASTM A36 & A572 designates the _____ _______ of the steel and *not* the allowable bending stress

True; yield strength

On a site, you might see joists spread at 12", 16", or 24" o.c. depending upon applied loads.

True

A steel angle might be described as 1/4" x 4" x 6" *and* a steel channel as C10 x 20.

True

A scarf, finger and butt joint are all typical joints used in wood fabrication.

False

Particle board, wafer board, oriented strand board (OSB) and medium-density fiberboard (MDF) are all types of non-veneered panels.

True

A ridge board, a collar beam, a rake and a valley are all used in truss construction.

False

Fabric structures are grouped into two general classifications: ________ and ________ structures.

Pneumatic; tensile

You would most likely find a cripple stud at:

(a) the toe plate in a stud wall
(b) a window header
(c) a floor opening

(b) a window header

Ventilation at the roof peak may be provided by a continuous roof vent *or* by the louver vents at the gable end walls.

True

A header would most likely be found in a door framing, but not in a window framing.

False

The steel erector sends shop drawings to the architect or engineer for approval before construction.

False

A gable, mansard, gusset, shed and hipped are all common roof types.

False (gusset is not a roof type)

Balloon framing is significantly less susceptible to fire damage than Western/Platform framing.

False (it's the other way around)

Fascia, lookout, header, trimmer and soffit are all part of a (wood) gable roof overhang.

False

Tightening a bolt to its required strength is called galling.

False

A ________ is used with a concrete-filled metal deck to increase bonding and resistance to _________ forces. This results in a lighter, stiffer, and less expensive frame.

Shear stud; compressive

Finishing stands, blooming mills, purlins and pulpits are all terms from the steel fabrication process.

False

You would most likely find a collar tie and a bird's mouth in a wood framed roof.

True

In wood framing, diagonal bridging is used to prevent the joists from racking or turning.

True

Posts, risers, treads, stringers and balusters are all part of stair construction

True

After the 1850s, steel was an economical replacement for *costly* cast iron and *brittle* wrought iron.

False

All of the following are steel shapes: channel, unequal angles, steel tube, bar, structural tee

True

A WF 10 x 24 most likely is a wide flange structural steel member 10* deep and 24 feet long.

False (it would be 24 lbs/linear ft)

Cold rolling light gauge steel *increases* its structural capacity.

True

Checks, twists, cupping, warps, bows and splits are common faults found in wood.

True

An ice dam most likely forms at the roof eave due to improper ventilation and inadequate insulation.

True

A space frame should always be supported at the top chord point.

False

You would typically find weep holes above a steel lintel in a masonry veneer wall.

True

The typical moisture content of kiln-dried wood is:

15-19%

Typical wood trusses may include all of the following:

-splice plate
-top chord
-heel
-vertical sway bracing

True

Steel shop drawings typically have to be approved by both the architect and the steel erector.

False

Shop drawings for steel fabrication are typically created by the structural engineer for the architect's review during the construction document stage.

False

Open-web steel joists can be both cold- and hot-rolled, are typically produced in three series (K, LH and DLH) *and* can be economically used in spans of 16 to 144 feet.

True

Roof sheathing is typically 5/8' thick, subflooring is 3/4" thick and wall sheathing is 1/2" thick.

True

Wrought iron is the most corrosion-resistant, cast iron has the most carbon, steel joists can be both hot- and cold-rolled, and steel decking is cold-rolled steel.

True

You would likely find a steel or plywood flitch plate in a wood framed:

(a) large (wide) door header
(b) beam condition above a wood framed opening
(c) a Howe truss
(d) none of the above
(e) A & B only

(e) A & B only

Carbon steel bolts are most commonly used in moment connections because of their low cost.

False

Redwood, Douglas fir, cypress, and red cedar are decay-resistant woods.

False

Structural wood panels fall into three categories:

- plywood panels
- composite panels
- non-veneered panels

True

Ordinary structural steel is commonly referred to as mild steel and contains about .15 to .25% carbon and other trace minerals.

True.

Enclosures constructed of gypsum wallboard, plaster and spray-on fireproofing are used to protect steel from a loss of strength in a building fire.

True

The following are included in the classification of steel:

-structural steel
-cold-formed steel
-reinforcing steel
-pre-stressing (post-tensioning steel)

true

You would most likely find a puddle weld in a corrugated steel deck.

True

An eccentrically loaded column or beam will generate _________ and ______ forces especially if it is not loaded in its kern area.

compressive; tensile

A water-filled box column can be used for fireproofing steel.

True

The most commonly used steel beam and column shapes are called American Standard shapes.

False

Shear studs are used with composite metal decking to bond the concrete with the steel beam.

True

A camber is used in steel columns so that they will deflect in a straight line under load.

False

High strength bolts are often used in friction or slip critical connections.

True

Wood must be at least 4" to be structurally stable.

False

You would most likely find a "dog bone" in balloon framed wood construction.

False

In theory, tensile supported structures are not limited in span.

True

The earliest form of iron was wrought iron *and* the current production of steel by a mini mill relies on scrap recycling to produce steel.

True

Steel is classed in three ways: application, strength and weight.

False (its application, strength, and metallurgy)

The designations A, B, C, C (plugged) and D are most likely veneer grades for soft wood and plywood.

True

You would most likely find a jack in a _______ roof.

gable

When composite steel decking is utilized, it provides a conduit for electrical and communication wiring.

False

Most framing lumber is cut from soft woods such as Douglas fir.

True

Types of veneer slicing include all of the following: plain-sawn, quarter-sawn, rotary, flat, half round and rift.

True

Interior wood walls are often constructed on the floor deck and then tilted into place.

True

Both Howe and Pratt trusses use vertical web members in compression to achieve strength.

False (Howe uses them in tension)

A Warren truss uses inclined web members forming equilateral triangles.

True

The actual size of a 4" x 14" wood jois t is
a. 4-1/2" x 13-1/4"
b. 4-1/2" x 13 1/2"
c. 4-1/4" x 13-1/2"
d. 4" x 14"

a. 4-1/2" x 13-1/4"

Each wood species has its own distinctive compressive shear rating AND Modulus of Elasticity.

True

What are two non-veneered panels?

OSB, Water board, Fiber board, Particle board

What are the four types of corrugated steel decking?

Form, Cellulate, Roof, Composite

A framed coped beam-girder connection made with angles bolted to the web is typically a shear connection. A flange-to-flange connection (both flanges connected to the column flange) is typically a moment resisting connection.

True

Shear plates and split ring connectors are typically used in heavy timber and wood truss construction.

True

Shop drawings for steel fabrication are typically created by the General Contractor for the Architect's review during the construction document stage.

False

A ridge board needs to be supported on both ends like a beam and is typically double 2" x12" min

False

Stringers, risers, treads, posts, balusters are all part of stair construction.

True

___________________ is abbreviated OSB and is a non-veneered panel.

Oriented Strand Board

In a rigid core steel frame stability is achieved by creating a rigid interior tower AND utilizing horizontal shear panels that make the outer bays of the building rigid by their connection to the rigid core.

True

Double trimmers and double headers are typically used at stair openings in wood framing.

True

Typical wood truss elements include all but which elements
a. splice plate
b. top chord
c. heel
d. lateral bracing
e. collar stud
1. a only
2. e only
3. c, d and e only
4. none of the above

4. none of the above

A rigid steel frame is statically indeterminate, typically is used in one story structures and must be braced perpendicular to the frame.

True

___________________ truss utilizes inclined web members forming equilateral triangles.

Warren

When cellular steel decking is utilized it provides a conduit for electrical and communications wiring.

True

The nominal size of a 2" x 4" wood strud is 1-1/2" x 3-1/2", the nominal size of a 2" x 3" wood STUD is 1-1/2" x 2-1/2"

True

Typically steel beams and columns cannot be used in Type 1 Non-combustible construction unless they are protected with fireproofing.

True

You would not use non-shrink grout at the base of a steel column base plate.

False

Susceptibility to corrosion, high thermal conductivity and its low sustainability characteristics are ALL drawbacks to using light gauge steel framing.

False

You would most likely find a jack rafter in a:
a. flat roof
b. gable roof
c. a howe truss roof
d. none of the above

b. gable roof

Manganese, vanadium, calcium chloride and chromium all additives used in the steel making process.

False

You would most likely find both a gusset plate, a split ring connector and a cripple stud in wood truss construction.

False

You would most likely find camber in a steel beam.

True

You should use steel screws to fasten an aluminum window into an opening.

False

You would likely find light gauge steel framing in a single-family housing project.

True

A built-up wood beam consisting of 3-2" x 10" wood joists actually measures 4-1/2" wide x 9-1/2" deep.

False

Both open web and steel joists and wood joist systems can both have diagonal bracing.

True