A manufacturing-plant floor plan is drawn at a scale of 1/8 inch = 1 foot 0 inches. A column grid measures 3-3/4 inches on the drawing. What is the actual grid spacing?
Estimating Plan Reading
Question · Easy
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Short
A plant floor slab measures 60 feet by 80 feet by 8 inches thick. How many cubic yards of concrete are required, with no waste allowance?
The same 60-foot by 80-foot by 8-inch plant slab will be ordered with an 8 percent waste allowance. How many cubic yards should be ordered?
Question · Medium
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A takeoff lists 2,400 linear feet of No. 5 reinforcing bar for a process-area slab. Using the CRSI unit weight of 1.043 pounds per foot, what is the bar weight?
A 40-foot by 60-foot equipment-room slab is reinforced with No. 4 bars at 12 inches on center each way. Count one bar at each edge. Add 2 feet of length to each bar for laps. Using 0.668 pounds per foot, what is the closest total No. 4 weight?
Question · Hard
OSHA fall heights, to scale
An industrial bay uses 18 W21×62 beams, each 40 feet long, and 12 W14×90 columns, each 28 feet long. Excluding connections, what is the structural steel tonnage?
An 8-inch CMU partition in a plant is 120 feet long and 16 feet high. Using nominal 8×8×16 units, with no openings and no waste, how many units are required?
On an architectural floor plan of a manufacturing plant, a dashed line most commonly represents which of the following?
On an industrial structural-steel package, who is responsible for reviewing and approving the fabricator's shop drawings?
A process-equipment mat is 10 feet by 12 feet by 3 feet thick. How many cubic yards of concrete are required, with no waste?
A crew places 45 cubic yards of industrial slab concrete in 6 hours. What is the placement rate?
Under the 2021 International Building Code, a manufacturing plant used for assembling, fabricating, or processing operations that is not Group H or Group S is classified as which occupancy group?
General Code
A foundry that fabricates metal products and does not involve a significant fire hazard during finishing or packing is classified under the 2021 IBC as which occupancy?
Per 2021 IBC Table 1607.1, what is the minimum uniformly distributed live load for heavy manufacturing?
Per 2021 IBC Table 1607.1, what is the minimum uniformly distributed live load for light manufacturing?
Under 2021 IBC Section 1704.2, who shall employ the approved agency that provides special inspections of structural concrete and steel on an industrial building?
A single-story steel industrial building of noncombustible materials with no required fire-resistance rating on the primary structural frame is which 2021 IBC construction type?
Under 2021 IBC Table 1604.5, an ordinary manufacturing plant that is not an essential facility and does not contain large quantities of hazardous materials is typically assigned which risk category?
The standard Proctor test used to control structural fill under an industrial floor determines which pair of soil properties?
Sitework
Before excavating a 12-foot-deep foundation pit beside an existing plant wall, which OSHA 1926 Subpart P requirement applies in addition to a cave-in protective system?
Proof-rolling the subgrade of a plant-floor slab is performed primarily to do which of the following?
Per 2021 IBC Section 1809.4, what is the minimum depth of footings below the undisturbed ground surface?
Footings Foundations
In addition to the 12-inch minimum of IBC 1809.4, exterior footings for an unheated industrial building must also satisfy which requirement?
A heavily loaded process vessel with high concentrated loads on poor near-surface soils is most appropriately supported on which foundation system?
A 36-inch-diameter drilled pier is 24 feet deep and is filled with concrete. What is the concrete volume, to the nearest 0.1 cubic yard? Use π = 3.1416.
Per ACI 318, what is the minimum specified concrete cover for reinforcement in concrete that is cast against and permanently exposed to earth?
Concrete Reinforcement
Per ACI 318, what is the minimum specified cover for No. 8 bars in concrete that is exposed to earth or weather but is not cast against the earth?
Per ACI 318, what is the minimum specified cover for No. 5 bars in an interior slab that is not exposed to weather or in contact with the ground?
Per ACI 318, what is the minimum specified cover for stirrups, ties, and primary reinforcement in interior beams and columns that are not exposed to weather?
What is the general minimum specified compressive strength, f'c, permitted by ACI 318 for structural concrete?
A formed industrial foundation wall is exposed to weather and is reinforced with No. 4 bars. Per ACI 318, what is the minimum specified cover?
A 10-inch-thick industrial tank wall is 80 feet long and 14 feet high. How many cubic yards of concrete are required, with no waste?
A column cage uses 480 linear feet of No. 8 bar. Using the CRSI weight of 2.670 pounds per foot, what is the bar weight?
Using CRSI published weights, which bar is closest to 1 pound per linear foot?
Per ACI 306, cold-weather concreting practices are required when which condition exists?
Unless the contract documents specify otherwise, ACI 301 typically requires concrete made with ASTM C150 Type I cement to be moist-cured for a minimum of how long?
Air-entrained concrete is specified for industrial slabs and walls primarily when the concrete will be:
If the water-cementitious materials ratio of an industrial concrete mix is increased and nothing else is changed, which result is expected?
A specified 4-inch-slump industrial structural mix arrives at 8 inches with no approved mid-range or high-range water-reducing adjustment. What should the contractor do?
Per ACI 318, the clear spacing between parallel reinforcing bars in a layer shall be at least:
For Grade 60 deformed bars, ACI 318 requires shrinkage and temperature reinforcement in structural slabs to provide a minimum ratio of reinforcement area to gross concrete area of:
An 8-inch structural plant slab uses Grade 60 shrinkage and temperature reinforcement. What is the ACI 318 minimum area of that reinforcement per foot of width?
On a post-tensioned industrial floor, when are the tendons typically stressed?
A precast double-tee used as a plant roof member should be erected in which manner?
Acceptance of specified compressive strength f'c for structural concrete is based primarily on which cylinders?
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