ACI Concrete Flatwork Technician Exam
With Actual Questions & Verified
Answers, Plus Explained
Rationales/Expert Verified For
Guaranteed 100% Pass 2026/Latest
Update/Instant Download Pdf
1. The primary purpose of concrete flatwork is to
A. Support vertical structural loads
B. Provide aesthetic architectural finishes
C. Create level, durable horizontal surfaces
D. Reduce foundation settlement
Flatwork is designed mainly to form horizontal surfaces such as
slabs, pavements, and floors that are level and durable.
2. Which cement type is most commonly used in general flatwork
applications?
A. Type II
B. Type I
C. Type III
D. Type V
Type I Portland cement is the standard for most general concrete
construction, including flatwork.
3. The slump test primarily measures
A. Concrete strength
B. Concrete consistency/workability
, C. Air content
D. Aggregate size
Slump indicates the workability or consistency of fresh concrete,
not its strength.
4. Excessive water added to concrete will most likely result in
A. Higher strength
B. Reduced strength and durability
C. Faster curing
D. Lower shrinkage
Too much water increases the water-cement ratio, weakening
the hardened concrete.
5. Recommended slump for most slab-on-grade flatwork is
A. 1–2 inches
B. 3–5 inches
C. 6–8 inches
D. Over 8 inches
A slump of 3–5 inches provides good workability without
sacrificing strength.
6. Which tool is used to level concrete immediately after placement?
A. Trowel
B. Screed
C. Float
D. Edger
Screeding removes excess concrete and establishes proper
elevation.
7. Bull floating should be performed
A. After final set
B. Immediately after screeding
C. After curing
, D. Only on decorative slabs
Bull floating embeds aggregate and smooths the surface after
screeding.
8. Finishing concrete while bleed water is present can cause
A. Improved finish
B. Faster curing
C. Surface scaling and dusting
D. Increased strength
Finishing too early traps water at the surface, weakening it.
9. Bleed water is caused by
A. Improper curing
B. Settlement of solid particles
C. Over-finishing
D. High cement content
As heavier particles settle, water rises to the surface.
10. The purpose of control joints is to
A. Increase slab thickness
B. Control cracking locations
C. Improve appearance only
D. Prevent shrinkage
Control joints provide planned weak points where cracks can
form.
11. Control joints should typically be spaced
A. Based on cement type only
B. 24–36 times the slab thickness (in inches)
C. At random intervals
D. Every 2 feet
Joint spacing is commonly based on slab thickness to manage
shrinkage stresses.
With Actual Questions & Verified
Answers, Plus Explained
Rationales/Expert Verified For
Guaranteed 100% Pass 2026/Latest
Update/Instant Download Pdf
1. The primary purpose of concrete flatwork is to
A. Support vertical structural loads
B. Provide aesthetic architectural finishes
C. Create level, durable horizontal surfaces
D. Reduce foundation settlement
Flatwork is designed mainly to form horizontal surfaces such as
slabs, pavements, and floors that are level and durable.
2. Which cement type is most commonly used in general flatwork
applications?
A. Type II
B. Type I
C. Type III
D. Type V
Type I Portland cement is the standard for most general concrete
construction, including flatwork.
3. The slump test primarily measures
A. Concrete strength
B. Concrete consistency/workability
, C. Air content
D. Aggregate size
Slump indicates the workability or consistency of fresh concrete,
not its strength.
4. Excessive water added to concrete will most likely result in
A. Higher strength
B. Reduced strength and durability
C. Faster curing
D. Lower shrinkage
Too much water increases the water-cement ratio, weakening
the hardened concrete.
5. Recommended slump for most slab-on-grade flatwork is
A. 1–2 inches
B. 3–5 inches
C. 6–8 inches
D. Over 8 inches
A slump of 3–5 inches provides good workability without
sacrificing strength.
6. Which tool is used to level concrete immediately after placement?
A. Trowel
B. Screed
C. Float
D. Edger
Screeding removes excess concrete and establishes proper
elevation.
7. Bull floating should be performed
A. After final set
B. Immediately after screeding
C. After curing
, D. Only on decorative slabs
Bull floating embeds aggregate and smooths the surface after
screeding.
8. Finishing concrete while bleed water is present can cause
A. Improved finish
B. Faster curing
C. Surface scaling and dusting
D. Increased strength
Finishing too early traps water at the surface, weakening it.
9. Bleed water is caused by
A. Improper curing
B. Settlement of solid particles
C. Over-finishing
D. High cement content
As heavier particles settle, water rises to the surface.
10. The purpose of control joints is to
A. Increase slab thickness
B. Control cracking locations
C. Improve appearance only
D. Prevent shrinkage
Control joints provide planned weak points where cracks can
form.
11. Control joints should typically be spaced
A. Based on cement type only
B. 24–36 times the slab thickness (in inches)
C. At random intervals
D. Every 2 feet
Joint spacing is commonly based on slab thickness to manage
shrinkage stresses.
