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100+ Free FL Pre-Stress/Precast Practice Questions

Prepare for the Florida Certified Structural Pre-Stress and Precast Specialty Contractor Examination exam with instant access — no signup required.

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2026 Statistics

Key Facts: FL Pre-Stress/Precast Exam

70%

Passing score

DBPR

55

Scored questions

DBPR ECI / At a Glance

2.75 hrs

Time allowed

DBPR ECI / At a Glance

$135

Registration fee

Professional Testing, Inc.

4 yrs

Experience req

CILB

This is an English-language multiple-choice study adaptation of Florida's open-book CILB Structural Pre-Stress and Precast trade knowledge exam. Questions are independently written from the official DBPR Structural Pre-Stress and Precast Specialty Contractor Examination Content Information (May 2026) content outline (Fundamentals of Prestress and Precast 7%, Design and Planning 14.25%, Field Fabrication 14.25%, Erection 36%, Safety 14.25%, Project Management 14.25%) and do not reproduce the CILB item bank or substitute for the official open-book examination administered by Professional Testing, Inc. and Pearson VUE.

Sample FL Pre-Stress/Precast Practice Questions

Try these sample questions to test your FL Pre-Stress/Precast exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1What is the fundamental difference between pre-tensioned and post-tensioned prestressed concrete?
A.Pre-tensioned strands are stressed before concrete is cast; post-tensioned tendons are stressed after the concrete has cured.
B.Pre-tensioned strands are stressed after the concrete cures; post-tensioned tendons are stressed before casting.
C.Both methods stress the steel after the concrete has hardened, but only post-tensioning uses anchors.
D.Pre-tensioning uses ducts and grease, while post-tensioning uses bond transfer only.
Explanation: In pre-tensioning the strands are tensioned against the casting bed abutments before concrete is placed, and force transfers to the concrete by bond when the strands are released. In post-tensioning the tendons are housed in ducts and stressed against the hardened concrete end anchors, then anchored mechanically. This timing difference governs which method suits plant-cast versus site-cast work.
2Prestressing strand used in precast prestressed concrete members is most commonly which of the following?
A.7-wire, low-relaxation steel strand with a nominal diameter of 1/2 inch and an ultimate strength of 270 ksi
B.Solid round mild steel bar with a yield strength of 60 ksi
C.High-strength stainless steel cable with a 150 ksi ultimate
D.Galvanized welded wire rope used for guardrails
Explanation: Prestressed concrete uses high-tensile 7-wire low-relaxation strand, most commonly 1/2-inch diameter with a 270 ksi ultimate tensile strength, because mild steel would yield and lose the prestress under the required jacking forces. The 7-wire geometry gives the strand flexibility and reliable bond. Smaller (3/8 in.) and larger (0.6 in.) sizes are also produced but the 1/2 in. strand is the workhorse for typical members.
3In structural precast construction, what does the term 'precast' indicate about a concrete member?
A.It is cast and cured at a location other than its final position, then transported and erected into place.
B.It is cast in its final position within the structure using permanent formwork.
C.It is cast only from pre-blended bagged concrete mixes.
D.It is cast on site the same day it is erected, with no transport.
Explanation: Precast concrete is cast, cured, and usually finished at a plant (or a casting bed away from the final location) and then hauled to the site and erected. This contrasts with cast-in-place concrete, which is poured in its final position. The off-site production allows tight quality control and the use of prestressing beds.
4Why is prestressing force applied to a concrete member before it carries service loads?
A.To induce a pre-compression that offsets the tensile stresses caused by service loads, keeping concrete mostly in compression.
B.To increase the concrete's compressive strength beyond its 28-day design value.
C.To bond the reinforcing steel to the concrete without using ties or chairs.
D.To reduce the member's dead weight so smaller cranes can lift it.
Explanation: Concrete is weak in tension and strong in compression. By pre-compressing the member (usually at the fibers that will later be in tension under service loads), the service-load tensile stresses are cancelled out by the precompression so the concrete stays essentially uncracked in compression. This lets members span farther with slimmer sections than ordinary reinforced concrete.
5When pre-tensioned strands are released (detensioned), the concrete must have reached a minimum strength called the transfer strength. This is typically what percentage of the specified 28-day compressive strength?
A.Approximately 70 to 80 percent of the specified 28-day strength
B.Exactly 50 percent of the 28-day strength
C.100 percent of the 28-day strength is always required before release
D.There is no minimum; strands can be released at any age
Explanation: Transfer strength is the concrete compressive strength required at the moment the prestress force is transferred to the member by releasing the strands. It is commonly set around 70-80% of f'c so the concrete can resist the compressive burst and bond stresses at release without damage. The exact value is specified by the engineer and verified by cylinder breaks.
6In a pre-tensioned member, how is the prestressing force transferred from the strand to the concrete?
A.By bond between the strand and the concrete when the strands are cut and released
B.By mechanical anchorages cast into the ends of the member
C.By post-tensioning wedges seated in bearing plates
D.By welding the strand to embedded plates
Explanation: Pre-tensioned strand holds its force through bond with the surrounding concrete. When the strands are released they try to shorten, and that shortening is resisted by friction and bond along the embedment length, transferring the prestress into the member. No external anchors are used; this is the defining feature of pre-tensioning.
7A 1/2-inch diameter, 270 ksi prestressing strand has a nominal cross-sectional area of 0.153 sq in. If a single strand is jacked to 70% of its ultimate strength, what is the approximate jacking force?
A.Approximately 28.9 kips
B.Approximately 41.3 kips
C.Approximately 13.8 kips
D.Approximately 70.0 kips
Explanation: Jacking force = 0.70 x (area x ultimate strength) = 0.70 x (0.153 sq in x 270 ksi) = 0.70 x 41.31 kips = approximately 28.9 kips. ACI 318 limits the initial tensile stress in low-relaxation strand to about 0.74 fpu at jacking, so 70% of ultimate is a reasonable jacking value for this estimate.
8On a precast erection project, which drawing shows the location, orientation, and mark number of each piece as it is to be placed in the structure?
A.The erection drawings
B.The reinforcing shop drawings
C.The concrete mix design submittal
D.The site grading plan
Explanation: Erection drawings (sometimes called setting drawings) locate each precast member in the building by mark number, show its orientation and elevation, and give the erector the sequence and connection details. They are the field document the crane crew and inspectors use, distinct from the fabricator's shop drawings. PCI MNL-135 defines their required content.
9What is the primary purpose of precast shop drawings prepared by the fabricator?
A.To detail how each member is manufactured: dimensions, reinforcement, strand layout, embeds, and finishes
B.To show where each finished piece is placed in the finished building
C.To record the daily concrete cylinder breaks at the plant
D.To bill the owner for delivered material
Explanation: Shop drawings communicate the fabricator's manufacturing intent for each piece: exact dimensions, concrete strength, rebar and strand arrangement, embedded items, lifting devices, and finish. They are reviewed by the engineer for conformance with the design. Erection drawings, not shop drawings, locate pieces in the structure.
10On a precast project, which of the following is considered a 'construction document' that defines the scope and contractual requirements for the work?
A.The contract drawings and project specifications
B.The erector's daily lift log
C.The crane operator's certification card
D.The ready-mix truck tickets
Explanation: Construction documents (the contract drawings and the written specifications) define the scope, materials, quality, and tolerances the contractor must meet. They are the basis for the shop and erection drawings that follow. Daily logs and tickets are records of execution, not governing documents.

About the FL Pre-Stress/Precast Exam

The Florida Certified Structural Pre-Stress and Precast trade knowledge exam covers the erection of structural precast concrete units (decks, beams, girders, walls, columns, stairs) and precast units for guard rails and decorative panels above the ground floor, including the welding and rigging in connection therewith and minor field fabrication. Tested content includes fundamentals of prestress and precast (composition and properties of concrete; types of prestress and precast), design and planning (construction documents, fabrication and shop drawings, erection drawings), field fabrication (forming, placement of rebar, concrete mix design), erection (transportation, site safety, erection technique, crane operators, cutting/patching/welding/drilling/coring, grouting), safety (hazard identification, PPE, fall protection, welding and rigging), and project management (construction documents, coordination, control lines and alignment). PCI MNL-116 (design) and MNL-135 (quality control/tolerances), ACI 318, PCA Design and Control of Concrete Mixtures, CRSI Placing Reinforcing Bars, OSHA 29 CFR 1926 (Subpart CC cranes, Subpart M fall protection, Subpart J welding), and the Florida Building Code appear across all content areas.

Questions

55 scored questions

Time Limit

2.75 hours

Passing Score

70%

Exam Fee

$135 registration + $40 trade exam administration (Florida DBPR Bureau of Education and Testing; administered by Professional Testing, Inc. and Pearson VUE)

FL Pre-Stress/Precast Exam Content Outline

7%

Fundamentals of Prestress and Precast

Knowledge of the composition and properties of concrete (cement, aggregates, water-cement ratio, admixtures, strength gain, transfer strength) and knowledge of the types of prestress and precast (pre-tensioned vs post-tensioned, 7-wire low-relaxation strand, plant-cast vs site-cast, prestressing strand and anchorages).

14.25%

Design and Planning

Construction documents (contract drawings and specifications, order of precedence), fabrication and shop drawings (piece marks, dimensions, reinforcement, strand layout, embeds, finishes), and erection drawings (piece location, orientation, elevation, sequence, connection details, bearing seat length). PCI MNL-135 production tolerances and camber.

14.25%

Field Fabrication

Forming (casting beds, long-line pre-tensioning beds, abutments, templates, hold-downs for harped profiles), placement of rebar (CRSI bar chairs, cover, splices), and concrete mix design (low water-cement ratio, high-early cement, admixtures, accelerated/steam curing for fast transfer strength).

36%

Erection

Transportation (trailers, permits, escorts, tie-downs, dunnage and overhang limits), site safety, erection technique (cranes, rigging, sling angle, spreader bars, lifting inserts and factor of safety, bracing, shimming, bearing pads, setting to PCI tolerances, sequence columns-beams-floors), crane operators (ASME B30.5 hand signals, load charts, gross vs net capacity, critical lift triggers), cutting/patching/welding/drilling/coring (AWS D1.1/D1.4, post-installed anchors, spall repair limits), and grouting (non-shrink cementitious/epoxy grout, grouted splice sleeves, drypack).

14.25%

Safety

Hazard identification (Job Hazard Analysis), personal protective equipment (hard hat, safety glasses, gloves, steel-toe boots, welding helmet with correct shade, fall arrest harness), fall protection (OSHA 1926 Subpart M 6-foot trigger, 5,000 lb anchorage), and welding and rigging safety (OSHA 1926 Subpart CC cranes, fire watch for hot work, rigging inspection and removal-from-service criteria, exclusion zone, tag lines, suspended-load rules).

14.25%

Project Management

Construction documents (review, RFIs, submittals, change orders), coordination (preconstruction meeting, trade coordination, sleeves and embeds, delivery sequence matched to erection sequence), and control lines and alignment (survey reference, cumulative tolerance control, as-built documentation, QA/QC closeout records, punch list).

How to Pass the FL Pre-Stress/Precast Exam

What You Need to Know

  • Passing score: 70%
  • Exam length: 55 questions
  • Time limit: 2.75 hours
  • Exam fee: $135 registration + $40 trade exam administration

Keys to Passing

  • Work through all 100 available questions
  • Review every answer and explanation
  • Track weak areas and revisit them
  • Use our AI tutor for tough concepts

FL Pre-Stress/Precast Study Tips from Top Performers

1Build a content-to-book map: PCI MNL-116 for prestress design (jacking force, effective prestress, losses, elongation), PCI MNL-135 for production and erection tolerances, ACI 318 for concrete design and cover, PCA Design and Control of Concrete Mixtures for mix design and transfer strength, CRSI Placing Reinforcing Bars for rebar layout and splices, OSHA 29 CFR 1926 Subpart CC for cranes and Subpart M for fall protection, and the FBC for wind and structural provisions.
2Weight your study time to Erection (36%) first, then the four 14.25% areas (Design and Planning, Field Fabrication, Safety, Project Management) before the 7% Fundamentals area. Erection is by far the largest section and carries the most calculation and code-lookup questions.
3Drill the calculations: prestress force (area x fpu x factor), elongation (PL/AE), member weight (volume x 150 pcf), crane net capacity (rated - rigging - hook block), sling tension (load share / sin angle), bearing area (reaction / allowable pressure), grout volume (pi x r^2 x length), and lifting insert capacity ratio (total rated / load).
4Learn the OSHA crane and rigging thresholds cold: one qualified signal person using ASME B30.5 standard hand signals, 6-foot fall protection trigger (1926.501) with 5,000 lb anchorage (1926.502), daily and annual crane inspections (1926.1412), critical lift triggers (75-90% of chart, multiple cranes, lifts over occupied areas), and the exclusion zone under any suspended load.
5Use a two-pass strategy on test day: answer quick knowledge and easy lookup questions first, mark long calculations and uncertain code questions for review, and keep your reference setup identical to the one you trained with (bound originals or bound PDFs only, no movable tabs, no handwritten notes). Confirm piece weights against the load chart before every pick.

Frequently Asked Questions

Are these the real CILB exam questions?

No. These are independently written study questions built from the official DBPR Structural Pre-Stress and Precast Specialty Contractor ECI content outline. They are an English-language MCQ study aid and do not reproduce CILB's item bank or substitute for the official open-book examination.

What is the format of the exam?

55 scored multiple-choice questions, 2.75 hours, open-book, computer-based at Pearson VUE centers, administered through Professional Testing, Inc. Passing score 70%. Both the DBPR Structural Pre-Stress and Precast ECI PDF (May 2026) and the DBPR Examinations at a Glance PDF confirm 55 questions; some third-party prep sites (1examprep.com, a YouTube CILB guide) still publish an outdated 70-question figure, and another (theexampros.com) lists a non-corroborated 5-hour time limit.

Is the exam open-book?

Yes. Candidates may bring only the approved references listed on the DBPR Construction Examinations Reference Lists (effective January 1, 2026), which for this exam include PCI MNL-116 and MNL-135, ACI 318, PCA Design and Control of Concrete Mixtures (17th Edition), CRSI Placing Reinforcing Bars (10th Edition), OSHA 29 CFR 1926, the Florida Building Code, and the ABC Contractors Manual. References must be bound; movable tabs and handwritten notes are not permitted.

What experience is required?

Generally 4 years of trade experience including at least 1 year as a foreman in the erection of structural precast concrete units (decks, beams, girders, walls, columns, stairs) and precast guard rails/decorative panels, or a qualifying combination of education and experience per Rule 61G4-16.009, F.A.C.; confirm with DBPR.