CSLB Concrete C8 License Practice Test -4 questions with answers

CSLB Concrete C8 License Practice Test #4
questions with answers

Which of the following tools is sufficient for the compacting of concrete in a
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small project? - CORRECT ANSWERS ✔✔Hand tamper
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At 50°F, how long should the concrete be protected to attain sufficient
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strength (normally 500 Psi)? - CORRECT ANSWERS ✔✔48 Hours
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Which of the following arrangements can be used to keep the concrete at the
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recommended 50°F temperature for allowing proper setting? - CORRECT
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ANSWERS ✔✔Heaters OR Thermal blankets
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What is the 'Swell Factor' for sandy loam soil when performing excavation
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work for a concrete structure? - CORRECT ANSWERS ✔✔About 1.1 to 1.2
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Which of the following building specification and cost estimating standard
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systems is accepted as ASTM standard? - CORRECT ANSWERS ✔✔UniFormat
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System
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Which of the following factors directly impact each other in the process of
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cost estimation for a concrete building project? - CORRECT ANSWERS
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✔✔Interest rate, Holding cost, Cost escalation
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,Which of the following points are true about Work Breakdown Structure
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(WBS) in the planning of a construction project? - CORRECT ANSWERS
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✔✔Decomposing of a task into doable, measureable, estimable , and
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schedulable units
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Which of the following statements is correct about the finishing of a concrete?
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- CORRECT ANSWERS ✔✔Concrete should be finished once bleed water and
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surface sheen disappear
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An excavation of 10 cubic meters is done on any soil. Which of the following
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statements is true about the refilling volume of that excavation with the same
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type of soil material? - CORRECT ANSWERS ✔✔More than 10 cubic meters
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What type of release oil is commonly used for the construction of wooden
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forms in the concrete industry? - CORRECT ANSWERS ✔✔Paraffin base oil
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Initial and final setting time values of concrete are normally considered from:
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- CORRECT ANSWERS ✔✔Mixing of water into cement material
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Form-exposed corners and edges are commonly beveled to avoid any || || || || || || || || ||




chipping by using: - CORRECT ANSWERS ✔✔Chamfer strips
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Which of the following are the basic crafts used in estimating the concrete
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construction cost in the industry? - CORRECT ANSWERS ✔✔Ironworker,
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Carpenter, Teamster, Cement mason
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, Which of the results of a concrete slump test has the highest workability? -
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CORRECT ANSWERS ✔✔True Slump
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Explanation:
Workability is the ease or difficulty of placing concrete in a particular
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location. For example, a stiff but plastic mix with large aggregate would be
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workable in large open form but not in a wall with closely spaced
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reinforcement. Please note that the slump test is NOT a measure of
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workability, and it should not be used to compare mixes of entirely different
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proportions or containing different kinds of aggregate.
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What is the maximum depth of a foundation footing commonly used in
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concrete construction? - CORRECT ANSWERS ✔✔78"
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Which of the following factors should be estimated as earthwork components
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in project planning? - CORRECT ANSWERS ✔✔ALL OF THESE
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-Rough grading, Excavation, Soil backfilling
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-Soil compacting, Fill material compacting, Excavation
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-Excavated soil hauling, Soil backfilling, Rough grading
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According to American Concrete Institute ACI-301 standard, what is the
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maximum volume of concrete that requires a strength test of concrete? -
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CORRECT ANSWERS ✔✔Each 100 cubic yards
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