Tennessee Commercial/Industrial (BC-B,C) Contractor Examination

On a commercial plan drawn at a scale of 1/8 inch = 1 foot 0 inches, a warehouse partition measures 4-1/2 inches on the sheet. What is the actual length of the partition?

• A18 feet
• B27 feet
• C36 feet
• D54 feet

On structural drawings for a Tennessee industrial plant, a centerline symbol through a column grid most nearly indicates:

• AThe finished face of the column fireproofing
• BThe geometric center of the column used for dimensioning the grid
• CThe location of the nearest expansion joint
• DThe outside face of the perimeter masonry

How many cubic yards of concrete are required for a 27-foot by 20-foot by 6-inch warehouse slab, ignoring waste?

• A5.0 cubic yards
• B10.0 cubic yards
• C13.5 cubic yards
• D20.0 cubic yards

A beam scheduled as W16×36 most nearly means:

• AThe beam is 16 inches deep and weighs about 36 pounds per linear foot
• BThe beam is 16 feet long and has a 36-inch flange
• CThe beam is ASTM A36 steel with a 16-inch flange
• DThe beam has a 16-inch flange width and a 36-ksi yield strength

A contractor must excavate an 80-foot by 40-foot by 8-foot-deep pit for an industrial tank. The soil has a 20 percent swell factor. How many loose cubic yards should be hauled, to the nearest cubic yard?

• A759 cubic yards
• B948 cubic yards
• C1,090 cubic yards
• D1,138 cubic yards

A 40-foot by 60-foot commercial floor slab is 8 inches thick. How many cubic yards should be ordered if the estimator adds 8 percent waste?

• A55 cubic yards
• B59 cubic yards
• C64 cubic yards
• D74 cubic yards

A ready-mix quote for a factory slab is USD 168 per cubic yard delivered, plus a USD 2,400 pump charge. What is the material-and-pump cost for 85 cubic yards?

• AUSD 14,280
• BUSD 16,680
• CUSD 17,340
• DUSD 18,880

On a set of commercial drawings, a section cut marked A/S301 is used primarily to:

• AShow the building elevation as seen from the street
• BReveal vertical relationships, materials, and connections at the cut line, detailed on sh…
• CList every door type in the building
• DReplace the need for a foundation plan

A 30-foot by 20-foot industrial slab is reinforced with #5 bars at 12 inches on center each way, including a bar at both edges in each direction. Using 1.043 pounds per foot for #5 bar, what is the approximate total rebar weight?

• A652 pounds
• B1,043 pounds
• C1,304 pounds
• D2,086 pounds

A steel bill lists eight W18×50 beams, each 32 feet long. What is the total steel weight of those beams?

• A1,600 pounds
• B6,400 pounds
• C12,800 pounds
• D25,600 pounds

On a site plan with a 1-foot contour interval, a proposed finish floor sits at elevation 412.0 and existing grade under the pad averages elevation 409.0. For a 100-foot by 80-foot pad, the earthwork is primarily:

• AA 3-foot fill of about 889 cubic yards before compaction adjustment
• BA 3-foot cut of about 889 cubic yards
• CBalanced cut and fill with no import
• DA 1-foot fill of about 296 cubic yards

A factory foundation has a continuous footing 2 feet wide by 1 foot thick and 180 feet long, with an 8-inch wall 10 feet high on the same 180-foot length. Including 5 percent waste, how many cubic yards of concrete should be ordered?

• A44 cubic yards
• B58 cubic yards
• C61 cubic yards
• D73 cubic yards

Four concrete finishers can each place and finish 250 square feet of industrial slab per hour. How many crew-hours are required to finish an 1,800-square-foot pour at that rate?

• A1.8 hours
• B3.6 hours
• C7.2 hours
• D14.4 hours

Direct cost on a commercial bid is USD 240,000. The estimator applies 12 percent overhead on direct cost, then 8 percent profit on the sum of direct cost plus overhead. What is the bid total?

• AUSD 259,200
• BUSD 268,800
• CUSD 288,000
• DUSD 290,304

When taking off a commercial door package, the most reliable source for the required fire-protection rating of each opening is:

• AThe civil grading plan north arrow
• BThe door schedule and the life-safety or code-analysis sheets
• CThe structural typical details for wide-flange beams
• DThe landscaping planting schedule

Under the 2021 IBC, a 40-seat restaurant tenant with a calculated occupant load of 40 persons is classified as:

• AGroup A-2 assembly
• BGroup B business
• CGroup M mercantile
• DGroup F-1 factory

A one-story steel warehouse with unprotected noncombustible beams, columns, and metal deck is most nearly which 2021 IBC construction type?

• AType I-A
• BType II-B
• CType III-A
• DType V-A

A furniture manufacturing plant that uses combustible millwork materials is classified under the 2021 IBC as:

• AGroup F-1 moderate-hazard factory industrial
• BGroup F-2 low-hazard factory industrial
• CGroup S-2 low-hazard storage
• DGroup U utility

Under the 2021 IBC, college and university classroom buildings are classified as:

• AGroup E educational
• BGroup B business
• CGroup A-3 assembly
• DGroup I-4 institutional

A 9,000-square-foot open office on one story is used as a business area. Using 2021 IBC Table 1004.5 (150 gross square feet per occupant), what is the design occupant load?

• A30 occupants
• B45 occupants
• C60 occupants
• D90 occupants

A Group A-2 restaurant fire area on the level of exit discharge has 4,200 square feet and an occupant load of 110. Under 2021 IBC 903.2.1.2, an automatic sprinkler system is:

• ANot required because the fire area is under 5,000 square feet
• BRequired because the occupant load is 100 or more
• CRequired only if the kitchen uses solid fuel
• DNever required in Group A-2 on the level of exit discharge

A sprinklered Group B office suite has a design occupant load of 52 and a common path of egress travel of 80 feet. How many exits or exit-access doorways are required from that suite under 2021 IBC Table 1006.2.1?

• AOne, because the building is sprinklered
• BOne, because common path is under 100 feet
• CTwo, because the occupant load exceeds 49
• DThree, because occupant load exceeds 50

Per 2021 IBC Table 601, the minimum fire-resistance rating of the primary structural frame in Type I-A construction is:

• A0 hours
• B1 hour
• C2 hours
• D3 hours

In a mixed-occupancy commercial building, 2021 IBC Section 508 accessory occupancies are those that are:

• AAlways required to be separated by 3-hour fire barriers
• BAncillary to the main occupancy and limited in area as specified in Section 508.2
• CClassified as Group H regardless of use
• DProhibited in Type II construction

An unsprinklered banquet room has 2,400 square feet of net area used for unconcentrated tables and chairs. Using 2021 IBC Table 1004.5 (15 net square feet per occupant) and Section 1005.3.1 (0.3 inch per occupant for stairs), what minimum total stair egress width is required for that occupant load?

• A32 inches
• B44 inches
• C48 inches
• D72 inches

Two exits are required from an unsprinklered commercial story whose maximum overall diagonal is 80 feet. Under 2021 IBC 1007.1.1, the exits must be separated by at least:

• A20 feet
• B27 feet
• C40 feet
• D80 feet

A Group B office room has an occupant load of 36. What is the maximum common path of egress travel for a single exit under 2021 IBC Table 1006.2.1?

• A75 feet if unsprinklered; 100 feet if sprinklered throughout per 903.3.1.1
• B100 feet if unsprinklered; 75 feet if sprinklered
• C25 feet in all cases
• D200 feet in all cases

Before excavating for a commercial foundation in Tennessee, underground utilities should be located by:

• AGuessing from old as-builts only
• BCalling 811 to request a utility locate
• CProbing with an uninsulated steel bar
• DWaiting until a line is struck

Per 2021 IBC Section 1804.4, the ground immediately adjacent to a building foundation shall be sloped away from the building at not less than:

• A1 percent for 5 feet
• B2 percent for 20 feet of soil
• C5 percent (1 in 20) for a minimum of 10 feet, unless an approved alternative drainage met…
• D10 percent for 3 feet only

For a simple-slope excavation in Type C soil, OSHA 1926 Subpart P Appendix B limits the maximum allowable slope to:

• A3/4 horizontal to 1 vertical (53 degrees)
• B1 horizontal to 1 vertical (45 degrees)
• C1-1/2 horizontal to 1 vertical (34 degrees)
• DVertical, if the cut is less than 10 feet

Structural fill under a commercial floor slab is specified at 95 percent of modified Proctor maximum dry density. That specification means the contractor must:

• APlace the fill in one loose lift equal to the full fill height
• BCompact each lift so field density tests reach at least 95 percent of the laboratory modi…
• CWet the fill until it flows like grout
• DUse only washed concrete sand

In earthwork estimating, bank cubic yards, loose cubic yards, and compacted cubic yards differ because:

• AA cubic yard always occupies the same volume in the cut, the truck, and the fill
• BSoil swells when excavated (loose) and usually occupies less volume than bank measure aft…
• CCompacted fill is always larger than the original bank cut
• DSwell applies only to concrete, not soil

A rectangular cut for a factory basement measures 120 feet by 80 feet with an average cut depth of 3.5 feet. What is the bank volume to the nearest cubic yard?

• A933 cubic yards
• B1,244 cubic yards
• C1,556 cubic yards
• D3,360 cubic yards

2021 IBC Section 1809.4 requires that shallow footings have a minimum depth below undisturbed ground and a minimum width of:

• A6 inches depth and 8 inches width
• B8 inches depth and 10 inches width
• C12 inches depth and 12 inches width
• D24 inches depth and 18 inches width in all cases

Except where a frost-protected shallow foundation is used, 2021 IBC Section 1809.5 requires exterior footings to be placed:

• AOn frozen soil if the pour is scheduled
• BBelow the frost line of the locality, or otherwise protected against frost heave as permi…
• CAt grade, regardless of climate
• DOnly on engineered fill above the frost line

Per ACI 318 as referenced by the 2021 IBC, the minimum specified concrete cover for cast-in-place reinforcement in concrete cast against and permanently exposed to earth is:

• A3/4 inch
• B1-1/2 inches
• C2 inches
• D3 inches

When a geotechnical report is not provided, 2021 IBC Table 1806.2 lists the presumptive vertical foundation pressure for clay and sandy clay as:

• A1,500 pounds per square foot
• B3,000 pounds per square foot
• C4,000 pounds per square foot
• D12,000 pounds per square foot

A steel column in a manufacturing building delivers a 80-kip service load to a square spread footing. The allowable soil bearing pressure is 2,000 psf. What is the smallest square footing, rounded up to the next 6 inches, that keeps bearing at or below 2,000 psf? (Ignore footing self-weight.)

• A5 feet 0 inches square
• B6 feet 0 inches square
• C6 feet 6 inches square
• D8 feet 0 inches square

All else equal, increasing the water-cementitious materials ratio of a structural concrete mix will most nearly:

• AIncrease compressive strength and decrease permeability
• BDecrease compressive strength and increase permeability
• CHave no effect on strength
• DEliminate the need for curing

Air-entraining admixture is specified in exterior concrete for a Tennessee industrial yard primarily to:

• AIncrease the slump without adding water
• BImprove resistance to freeze-thaw scaling by providing microscopic air voids
• CReplace all coarse aggregate
• DAccelerate final set in hot weather

Unless the contract documents specify otherwise, specified compressive strength f'c of structural concrete is verified at:

• A24 hours on a field-cured beam only
• B3 days on a rebound hammer only
• C28 days using standard-cured cylinders
• D90 days on cores from every truck

For cast-in-place concrete exposed to weather, ACI 318 requires a minimum cover of 2 inches for which bars?

• A#3 bars only
• B#5 and smaller
• C#6 through #18
• DAll welded wire reinforcement

What is the ACI 318 minimum cover for #5 bars in a cast-in-place interior elevated slab not exposed to weather or in contact with the ground?

• A1/2 inch
• B3/4 inch
• C1-1/2 inches
• D3 inches

The nominal cross-sectional area of a #5 reinforcing bar is:

• A0.20 square inches
• B0.31 square inches
• C0.44 square inches
• D0.79 square inches

Fresh concrete slump on a commercial pour is measured in accordance with ASTM C143 by:

• AFilling a 12-inch slump cone in three layers, rodding each layer 25 times, then measuring…
• BWeighing a 1/2-cubic-foot bucket
• CSawing a hardened cylinder
• DReading the truck's water meter only