2025 ACI Flatwork Exam Made Easy – Score
Like a Pro!"
Rigid supports for a straightedge used to strike off concrete can be - CORRECT ANSWER✔✔All of the
above
How can workers avoid low spots when using hand-operated straightedges? - CORRECT
ANSWER✔✔Place concrete about 1 in higher in front of the screed
Hand-held vibrating screeds are often useful when striking off concrete with ____ - CORRECT
ANSWER✔✔Wet screeds
Vibrating screeds should be moved forward as fast as proper consolidation allows to avoid bringing too
much mortar to the surface. t or f - CORRECT ANSWER✔✔True
On slabs with many protruding pipes, a ____ works better than a ____ ______ for smoothing the surface
- CORRECT ANSWER✔✔darby and bull floats
Bull floating is done : - CORRECT ANSWER✔✔immediately after screeding
When using a magnesium bull float, leaving a small unfloated section and watching for bleed water in
that section can help determine if the magnesium float is _____ the surface - CORRECT
ANSWER✔✔Sealing
Like a Pro!"
Rigid supports for a straightedge used to strike off concrete can be - CORRECT ANSWER✔✔All of the
above
How can workers avoid low spots when using hand-operated straightedges? - CORRECT
ANSWER✔✔Place concrete about 1 in higher in front of the screed
Hand-held vibrating screeds are often useful when striking off concrete with ____ - CORRECT
ANSWER✔✔Wet screeds
Vibrating screeds should be moved forward as fast as proper consolidation allows to avoid bringing too
much mortar to the surface. t or f - CORRECT ANSWER✔✔True
On slabs with many protruding pipes, a ____ works better than a ____ ______ for smoothing the surface
- CORRECT ANSWER✔✔darby and bull floats
Bull floating is done : - CORRECT ANSWER✔✔immediately after screeding
When using a magnesium bull float, leaving a small unfloated section and watching for bleed water in
that section can help determine if the magnesium float is _____ the surface - CORRECT
ANSWER✔✔Sealing
