Louisiana Contractor Concrete Construction Excluding Highways, Streets, and Bridges Trade Examination Practice Test
Concrete construction outside highway, street, and bridge work centers on preparing, placing, finishing, and protecting cast-in-place concrete. Practice questions sample field decisions involving reinforcement supports, slab subgrades, openings and sleeves, concrete placement conditions, curing, grout preparation, and worker protection during wet-concrete handling.
Exam overview
About the Louisiana Contractor Concrete Construction Excluding Highways, Str… Exam
The practice material focuses on coordinating placement with drawings and site conditions. It tests judgment about confirming reinforcing steel connections before a column pour, resolving a missing floor sleeve before concrete placement, and preparing the subgrade so slab support is reasonably uniform. Other questions address protecting fresh concrete from forecast rain, selecting when a curing compound can be applied, and starting an appropriate curing method promptly. The bank also touches on temperature control in large, deep footings and surface preparation for non-shrink grout beneath base plates. These situations connect construction sequencing with quality control: verify embedded items and reinforcing details before a pour, protect concrete during placement and early curing, and follow specified materials and preparation procedures.
Sample Practice Questions
Review a selection from this exam's published US Practice Tests practice bank.
Why are reinforcement bars commonly supported on chairs or other approved supports before a slab pour?
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Correct answer: ASupports help maintain the specified reinforcement location while concrete is placed. This allows the steel to be embedded with the intended cover and position rather than resting on the subgrade or shifting during the pour.
A concrete placement is planned during a forecast rainstorm. Which preparation best reduces the risk of rain damaging freshly placed concrete?
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Correct answer: ACovers and drainage measures help protect plastic concrete from surface erosion, excess water, and runoff. Do not compensate for rain by changing the mix water or rush finishing.
A concrete crew discovers that a floor penetration sleeve shown on the drawings is missing from the layout before the pour. What is the soundest next step?
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Correct answer: BEmbedded items and penetrations should be coordinated and installed in their intended locations before concrete placement. Resolving a discrepancy in advance avoids unauthorized changes, rework, and potential conflicts with reinforcement or services.
A cast-in-place concrete column must connect to reinforcing steel projecting from a previously placed footing. What should the crew verify before the column pour?
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Correct answer: AThe projecting reinforcement must be positioned and have the required embedment or connection details shown in the structural documents. Cutting, coating, or displacing bars can compromise the intended structural connection.
Before applying a curing compound, what should a concrete finisher generally verify?
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Correct answer: ACuring compounds have product-specific application requirements, and timing and surface conditions affect their performance. Follow the product instructions and project specifications rather than assuming a universal application method.
When handling freshly mixed concrete, why should workers avoid prolonged contact with wet concrete using unprotected skin?
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Correct answer: AFresh concrete is alkaline and can cause irritation or serious chemical burns, sometimes without immediate pain. Appropriate protective clothing, gloves, and prompt washing are basic safety measures.
Why should a concrete subgrade be compacted and brought to a reasonably uniform condition before a slab is placed?
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Correct answer: AA stable, uniform subgrade helps support the slab consistently. Poor or uneven support can contribute to settlement, cracking, and changes in slab elevation.
How to use this practice test
Access the free practice questions in sessions of up to 20 randomly selected items from the published bank. After each session, review the displayed results to identify topics that need further work, such as reinforcement placement, curing, rain protection, or grout preparation.
Preparation tips
- Review how chairs and other approved supports maintain reinforcing-bar position and concrete cover during placement.
- Practice checking drawings and field layouts for sleeves, penetrations, and projecting reinforcing steel before a pour begins.
- Compare curing methods and identify the conditions to verify before applying a curing compound.
- Study placement precautions for rain exposure and heat buildup in large, deep concrete sections.
- Review surface and substrate preparation for slabs and specified non-shrink grout beneath base plates.