CSLB Concrete C8 License Practice Test 1 | COMPLETE 87
REAL EXAM QUESTIONS WITH ANSWERS LATEST UPDATED
100% VERIFIED SOLUTIONS /ALREADY GRADED A+
Refer to the house plan. How many square feet is the foundation
slab? - ANSWER-1844 sq ft
Explanation:
The easiest way to solve for the area of the slab is to image a full
rectangle of the slab and subtract void areas from the area of the
slab.
Rectangle area: 28.167' x 71.5'= 2013.94 sq ftLeft void area:
6.667' x 1.83' = 12.2 sq ftCenter void area: 11.5' x 1.83' = 21.045
sq ftRight void area: 9.167' x 15' = 137.505Net area of the
foundation slab: 2013.94 - 12.2 - 21.045 - 137.505 = 1843.19 sq ft.
What is the area of a cylinder that has a radius of 6 inches and
height of 8 feet? - ANSWER-25.12 sq. ft.
Explanation:
,To solve for the area of a cylinder, multiply circumference by the
height of the cylinder. Don't forget that the radius is given in
inches, but height is given in feet.Step 1: Find
Circumference.Diameter = radius x 2Diameter = 6" x 2 = 12
inches or 1 footCircumference = D x π (or 3.14)1 x 3.14 = 3.14
feetStep 2. Find the Area.Area = circumference x heightArea =
3.14 x 8Area = 25.12
Which of the following tests used to measure the consistency of
the concrete? - ANSWER-Slump test
Explanation:
Slump test is used to measure the consistency of the
concrete.Compressive test is used to determine whether a
concrete has the specified compressive strength.
What is the minimum width of the footing for a 2-story house? -
ANSWER-15"
What is the concrete mixture ratio of 1:2:4? - ANSWER-Standard
Explanation:
The mixture ratio of 1:2:4 stands for 1 part cement, 2 parts of
sand or fine aggregate, and 3 parts of coarse aggregate.Here is
, all of the mixture ratios:Lean 1:3:6Medium 1:2 ½:5Standard
1:2:4Rich 1:2:3
What is the minimum concrete cover, if rebar is cast against and
permanently exposed to earth? - ANSWER-3 inches
Explanation:
Concrete cover as protection of reinforcement against weather
and other effects is measured from the concrete surface to the
outermost surface of the steel. This is also known as concrete
tolerance for reinforcement. In most cases, this means that rebar
should be encased 3 inches in concrete. If the concrete is not in
direct contact with soil/weather, then the encasement can be
less than 3 inches.
How many cubic yards of concrete is required for a 4" slab with
the circumference of 25 feet? - ANSWER-3/4 cubic yard(s)
Explanation:
Since the circumference was provided to calculate the area of
the circle, we need to figure out the diameter and/or radius to
solve the problem.Circumference = 25Diameter = Circumference
(25') ÷ π (or 3.14) = 7.96 feetRadius = Diameter (7.96') ÷ 2 = 3.98
feetTraditional MethodUse the following formula:Area of the
circle = π x r x rWhere π = 3.14 and radius (r) = 3.98 feetArea =
REAL EXAM QUESTIONS WITH ANSWERS LATEST UPDATED
100% VERIFIED SOLUTIONS /ALREADY GRADED A+
Refer to the house plan. How many square feet is the foundation
slab? - ANSWER-1844 sq ft
Explanation:
The easiest way to solve for the area of the slab is to image a full
rectangle of the slab and subtract void areas from the area of the
slab.
Rectangle area: 28.167' x 71.5'= 2013.94 sq ftLeft void area:
6.667' x 1.83' = 12.2 sq ftCenter void area: 11.5' x 1.83' = 21.045
sq ftRight void area: 9.167' x 15' = 137.505Net area of the
foundation slab: 2013.94 - 12.2 - 21.045 - 137.505 = 1843.19 sq ft.
What is the area of a cylinder that has a radius of 6 inches and
height of 8 feet? - ANSWER-25.12 sq. ft.
Explanation:
,To solve for the area of a cylinder, multiply circumference by the
height of the cylinder. Don't forget that the radius is given in
inches, but height is given in feet.Step 1: Find
Circumference.Diameter = radius x 2Diameter = 6" x 2 = 12
inches or 1 footCircumference = D x π (or 3.14)1 x 3.14 = 3.14
feetStep 2. Find the Area.Area = circumference x heightArea =
3.14 x 8Area = 25.12
Which of the following tests used to measure the consistency of
the concrete? - ANSWER-Slump test
Explanation:
Slump test is used to measure the consistency of the
concrete.Compressive test is used to determine whether a
concrete has the specified compressive strength.
What is the minimum width of the footing for a 2-story house? -
ANSWER-15"
What is the concrete mixture ratio of 1:2:4? - ANSWER-Standard
Explanation:
The mixture ratio of 1:2:4 stands for 1 part cement, 2 parts of
sand or fine aggregate, and 3 parts of coarse aggregate.Here is
, all of the mixture ratios:Lean 1:3:6Medium 1:2 ½:5Standard
1:2:4Rich 1:2:3
What is the minimum concrete cover, if rebar is cast against and
permanently exposed to earth? - ANSWER-3 inches
Explanation:
Concrete cover as protection of reinforcement against weather
and other effects is measured from the concrete surface to the
outermost surface of the steel. This is also known as concrete
tolerance for reinforcement. In most cases, this means that rebar
should be encased 3 inches in concrete. If the concrete is not in
direct contact with soil/weather, then the encasement can be
less than 3 inches.
How many cubic yards of concrete is required for a 4" slab with
the circumference of 25 feet? - ANSWER-3/4 cubic yard(s)
Explanation:
Since the circumference was provided to calculate the area of
the circle, we need to figure out the diameter and/or radius to
solve the problem.Circumference = 25Diameter = Circumference
(25') ÷ π (or 3.14) = 7.96 feetRadius = Diameter (7.96') ÷ 2 = 3.98
feetTraditional MethodUse the following formula:Area of the
circle = π x r x rWhere π = 3.14 and radius (r) = 3.98 feetArea =
