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Colorado-Concrete Online Practice Test

These are actual questions from our online practice test.

We have included a question from each chapter of the test. Every question will be multiple choice. The answers are not included with the sample.

Sample Questions

# Chapter Title Question
1 Concrete, Mixtures, Strength and Pressure

Construction quality is crucial to the long-term pavement performance. Construction factors such as surface preparation, placement, joint construction and compaction/consolidation have an overwhelming effect on pavement performance, which cannot be ignored or compensated for in mix or structuiral design.

2 Formwork Forms should not be removed until the concrete has achieved _______% of it’s strength.
3 Foundations

Control joints are generally located how many ft. apart on concrete slabs on grade, as a rule, ____ to ______ times the thickness.

4 Shotcrete What are some of the factors that determine the quality of the shotcrete?
5 Reinforcing Steel, Rebar and Ties The adjustable column form is a durable, rugged system that quickly form column dimensions in 1" and 2" increments. ____________ psf allowable pressure Standard 3/4" chamfer on all columns create smooth edge finish 3/16" steel form face provides an excellent finish, standard 3/4" Speed Bolts join forms, no internal ties required, up to 48" square columns.
6 Unbonded and Post-Tensioning

Moisture infiltration in unbonded post-tensioned cables can occur from numerous sources including initial construction, ground water, roof leakage, and poor quality grout pockets.

7 Structural, Reinforcing Steel, Rebar and Ties ____________________ is the top skived joint may be run in only one direction where the two ends of the belt are overlapped by 1/4”. Each end must be specifically prepared so once the joint is made it is no thicker than the rest of the belt.
8 Excavating, Layout and Compaction To prevent cracking and joint spalling you need to support the slab at those locations where it can behave like a ______________ and bend into the subbase.
9 Excavating Sitework and Drainage

For maximum compaction, material backfilled into a trench should be placed with ______ in. lifts.

10 Coating Products, Control Corrosion, Surface Preparation and Moisture Protection The application of Dampproofing is likely to reduce the moisture to the inside of the building.
11 Tools and Supplies A _______________ is an implement consisting of a broad blade or scoop attached to along handle.
12 Definitions A/An _________________ is a slab of concrete extending beyond the entrance to a building, particularly at an entrance for vehicular traffic.
13 Concrete Safety

Ensure that _____________ are in place to protect workers using mixers, block makers, cubers and metal working machinery such as rebar benders, cutters and cage rollers.

14 Safety, OSHA, Training and Dig Alert

CO State 811 Dig Alert, must be notified of site excavation at least ___________ days but not more than _______.

15 Basic Bid Preparation and Estimating A promissory agreement between two or more persons that creates a legal relationship is _______________.
16 Mathematics and Calculations How many yards of concrete will cover 20x20?


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