CSLB CONCRETE C8 LICENSE
PRACTICE TEST #4 2025
QUESTIONS UPDATED
Which of the following tools is sufficient for the compacting of concrete in a small
project? - CORRECT ANSWER>>>>Hand tamper
At 50°F, how long should the concrete be protected to attain sufficient strength
(normally 500 Psi)? - CORRECT ANSWER>>>>48 Hours
Which of the following arrangements can be used to keep the concrete at the
recommended 50°F temperature for allowing proper setting? - CORRECT
ANSWER>>>>Heaters OR Thermal blankets
What is the 'Swell Factor' for sandy loam soil when performing excavation work for a
concrete structure? - CORRECT ANSWER>>>>About 1.1 to 1.2
Which of the following building specification and cost estimating standard systems is
accepted as ASTM standard? - CORRECT ANSWER>>>>UniFormat System
Which of the following factors directly impact each other in the process of cost
estimation for a concrete building project? - CORRECT ANSWER>>>>Interest rate,
Holding cost, Cost escalation
Which of the following points are true about Work Breakdown Structure (WBS) in the
planning of a construction project? - CORRECT ANSWER>>>>Decomposing of a task
into doable, measureable, estimable , and schedulable units
Which of the following statements is correct about the finishing of a concrete? -
CORRECT ANSWER>>>>Concrete should be finished once bleed water and surface
sheen disappear
An excavation of 10 cubic meters is done on any soil. Which of the following statements
is true about the refilling volume of that excavation with the same type of soil material? -
CORRECT ANSWER>>>>More than 10 cubic meters
What type of release oil is commonly used for the construction of wooden forms in the
concrete industry? - CORRECT ANSWER>>>>Paraffin base oil
Initial and final setting time values of concrete are normally considered from: -
CORRECT ANSWER>>>>Mixing of water into cement material
Form-exposed corners and edges are commonly beveled to avoid any chipping by
using: - CORRECT ANSWER>>>>Chamfer strips
, Which of the following are the basic crafts used in estimating the concrete construction
cost in the industry? - CORRECT ANSWER>>>>Ironworker, Carpenter, Teamster,
Cement mason
Which of the results of a concrete slump test has the highest workability? - CORRECT
ANSWER>>>>True Slump
Explanation:
Workability is the ease or difficulty of placing concrete in a particular location. For
example, a stiff but plastic mix with large aggregate would be workable in large open
form but not in a wall with closely spaced reinforcement. Please note that the slump test
is NOT a measure of workability, and it should not be used to compare mixes of entirely
different proportions or containing different kinds of aggregate.
What is the maximum depth of a foundation footing commonly used in concrete
construction? - CORRECT ANSWER>>>>78"
Which of the following factors should be estimated as earthwork components in project
planning? - CORRECT ANSWER>>>>ALL OF THESE
-Rough grading, Excavation, Soil backfilling
-Soil compacting, Fill material compacting, Excavation
-Excavated soil hauling, Soil backfilling, Rough grading
According to American Concrete Institute ACI-301 standard, what is the maximum
volume of concrete that requires a strength test of concrete? - CORRECT
ANSWER>>>>Each 100 cubic yards
What are the recommended sizes of granular for a floor slab or foundation of a small-to
medium-size building? - CORRECT ANSWER>>>>4" to 6"
Which of the following are the main objectives of applying sealers on exterior concrete
surfaces? - CORRECT ANSWER>>>>To keep salt and water out of the concrete
What is the slab curling impact of direct placement of concrete on the moisture barrier
as indicated by American Concrete Institute guidelines? - CORRECT
ANSWER>>>>Slab curling increases
Which of the following activities are recommended before placing the concrete into the
forms? - CORRECT ANSWER>>>>Application of form release oil and water
Which of the following is the standard spacing commonly used between two adjacent
expansion joints on a 4" thick concrete slab? - CORRECT ANSWER>>>>10 to 12 feet
PRACTICE TEST #4 2025
QUESTIONS UPDATED
Which of the following tools is sufficient for the compacting of concrete in a small
project? - CORRECT ANSWER>>>>Hand tamper
At 50°F, how long should the concrete be protected to attain sufficient strength
(normally 500 Psi)? - CORRECT ANSWER>>>>48 Hours
Which of the following arrangements can be used to keep the concrete at the
recommended 50°F temperature for allowing proper setting? - CORRECT
ANSWER>>>>Heaters OR Thermal blankets
What is the 'Swell Factor' for sandy loam soil when performing excavation work for a
concrete structure? - CORRECT ANSWER>>>>About 1.1 to 1.2
Which of the following building specification and cost estimating standard systems is
accepted as ASTM standard? - CORRECT ANSWER>>>>UniFormat System
Which of the following factors directly impact each other in the process of cost
estimation for a concrete building project? - CORRECT ANSWER>>>>Interest rate,
Holding cost, Cost escalation
Which of the following points are true about Work Breakdown Structure (WBS) in the
planning of a construction project? - CORRECT ANSWER>>>>Decomposing of a task
into doable, measureable, estimable , and schedulable units
Which of the following statements is correct about the finishing of a concrete? -
CORRECT ANSWER>>>>Concrete should be finished once bleed water and surface
sheen disappear
An excavation of 10 cubic meters is done on any soil. Which of the following statements
is true about the refilling volume of that excavation with the same type of soil material? -
CORRECT ANSWER>>>>More than 10 cubic meters
What type of release oil is commonly used for the construction of wooden forms in the
concrete industry? - CORRECT ANSWER>>>>Paraffin base oil
Initial and final setting time values of concrete are normally considered from: -
CORRECT ANSWER>>>>Mixing of water into cement material
Form-exposed corners and edges are commonly beveled to avoid any chipping by
using: - CORRECT ANSWER>>>>Chamfer strips
, Which of the following are the basic crafts used in estimating the concrete construction
cost in the industry? - CORRECT ANSWER>>>>Ironworker, Carpenter, Teamster,
Cement mason
Which of the results of a concrete slump test has the highest workability? - CORRECT
ANSWER>>>>True Slump
Explanation:
Workability is the ease or difficulty of placing concrete in a particular location. For
example, a stiff but plastic mix with large aggregate would be workable in large open
form but not in a wall with closely spaced reinforcement. Please note that the slump test
is NOT a measure of workability, and it should not be used to compare mixes of entirely
different proportions or containing different kinds of aggregate.
What is the maximum depth of a foundation footing commonly used in concrete
construction? - CORRECT ANSWER>>>>78"
Which of the following factors should be estimated as earthwork components in project
planning? - CORRECT ANSWER>>>>ALL OF THESE
-Rough grading, Excavation, Soil backfilling
-Soil compacting, Fill material compacting, Excavation
-Excavated soil hauling, Soil backfilling, Rough grading
According to American Concrete Institute ACI-301 standard, what is the maximum
volume of concrete that requires a strength test of concrete? - CORRECT
ANSWER>>>>Each 100 cubic yards
What are the recommended sizes of granular for a floor slab or foundation of a small-to
medium-size building? - CORRECT ANSWER>>>>4" to 6"
Which of the following are the main objectives of applying sealers on exterior concrete
surfaces? - CORRECT ANSWER>>>>To keep salt and water out of the concrete
What is the slab curling impact of direct placement of concrete on the moisture barrier
as indicated by American Concrete Institute guidelines? - CORRECT
ANSWER>>>>Slab curling increases
Which of the following activities are recommended before placing the concrete into the
forms? - CORRECT ANSWER>>>>Application of form release oil and water
Which of the following is the standard spacing commonly used between two adjacent
expansion joints on a 4" thick concrete slab? - CORRECT ANSWER>>>>10 to 12 feet
