CSLB Concrete C8 License Practice Test #4 Questions
And Answers Verified 100% Correct
What is the unit of concrete quantity take-off? - ANSWER Cubic feet
Which of the following concrete pouring strategies is commonly adopted while
filling stair steps? - ANSWER From bottom to top
How much water needs to be added to the concrete to increase the slump value of
a cubic yard of concrete by one unit? - ANSWER One gallon
Which of the following factors increases the drying shrinkage as well as creeping
in concrete structures ? - ANSWER Low Temperature & Low Relative Humidity
Which of the following are three major types of concrete project cost estimates
that are commonly used in the project planning? - ANSWER Preliminary Estimate,
Detailed Estimate, Engineer's Estimate
Explanation:
Preliminary estimate is general conceptual estimate based on the conceptual
design of a project.
Detailed estimate is based on the detailed scope of work of the project.
Engineer's estimate is the final estimate based on the project specifications and
plans.
What is the recommended curing time for a normal concrete between 50°F to
70°F? - ANSWER 7 Days
Explanation:
After 7 days, concrete will be able to withstand heavier loads, however, heavy
machinery should still be kept away from the concrete.
, Foundation false-work is commonly done with the help of: - ANSWER Piling or
Mudsill
Which of the following statements about structural and non-structural concrete is
correct? - ANSWER Non - structural c oncrete uses lightweight concrete only
What is the recommended waste ratio for ready mixed concrete commonly
adopted in the industry? - ANSWER 7.3%
What is the standard weight of cement, sand, and aggregate, respectively, that will
be required to make one cubic feet of fresh concrete of 1:2:3 ratios? - ANSWER 22
pounds, 41 pounds, 70 pounds
What is the recommended wastage ratio considered for estimating the heavy
weight reinforcing steel bars of #30 or above for a concrete construction project? -
ANSWER 3.3 percent
What is the recommended ratio of wastage for formwork commonly used in the
concrete construction industry? - ANSWER 25 percent
How many square inches are there in a square foot of area? - ANSWER 144
square inches
The drying shrinkage of concrete is independent of _____________in the
concrete, as concrete dries up during the setting time. - ANSWER Stress
Which of the following tests are recommended by ASTM C94 standard to verify
the quality of ready mixed concrete while pouring it in the structural forms? -
ANSWER Temperature Test, Air Content Test, Slump Test
How many take-off methods are commonly used for concrete estimating activity
in the industry? - ANSWER 3
Explanation:
There are three take-off methods commonly used for concrete take-off needs.
And Answers Verified 100% Correct
What is the unit of concrete quantity take-off? - ANSWER Cubic feet
Which of the following concrete pouring strategies is commonly adopted while
filling stair steps? - ANSWER From bottom to top
How much water needs to be added to the concrete to increase the slump value of
a cubic yard of concrete by one unit? - ANSWER One gallon
Which of the following factors increases the drying shrinkage as well as creeping
in concrete structures ? - ANSWER Low Temperature & Low Relative Humidity
Which of the following are three major types of concrete project cost estimates
that are commonly used in the project planning? - ANSWER Preliminary Estimate,
Detailed Estimate, Engineer's Estimate
Explanation:
Preliminary estimate is general conceptual estimate based on the conceptual
design of a project.
Detailed estimate is based on the detailed scope of work of the project.
Engineer's estimate is the final estimate based on the project specifications and
plans.
What is the recommended curing time for a normal concrete between 50°F to
70°F? - ANSWER 7 Days
Explanation:
After 7 days, concrete will be able to withstand heavier loads, however, heavy
machinery should still be kept away from the concrete.
, Foundation false-work is commonly done with the help of: - ANSWER Piling or
Mudsill
Which of the following statements about structural and non-structural concrete is
correct? - ANSWER Non - structural c oncrete uses lightweight concrete only
What is the recommended waste ratio for ready mixed concrete commonly
adopted in the industry? - ANSWER 7.3%
What is the standard weight of cement, sand, and aggregate, respectively, that will
be required to make one cubic feet of fresh concrete of 1:2:3 ratios? - ANSWER 22
pounds, 41 pounds, 70 pounds
What is the recommended wastage ratio considered for estimating the heavy
weight reinforcing steel bars of #30 or above for a concrete construction project? -
ANSWER 3.3 percent
What is the recommended ratio of wastage for formwork commonly used in the
concrete construction industry? - ANSWER 25 percent
How many square inches are there in a square foot of area? - ANSWER 144
square inches
The drying shrinkage of concrete is independent of _____________in the
concrete, as concrete dries up during the setting time. - ANSWER Stress
Which of the following tests are recommended by ASTM C94 standard to verify
the quality of ready mixed concrete while pouring it in the structural forms? -
ANSWER Temperature Test, Air Content Test, Slump Test
How many take-off methods are commonly used for concrete estimating activity
in the industry? - ANSWER 3
Explanation:
There are three take-off methods commonly used for concrete take-off needs.
