1|Page
CSLB CONCRETE C8 LICENSE PRACTICE TEST
#1 | COMPREHENSIVE Q&A FOR GUARANTEED
SUCCESS
To ensure proper grounding, the grounding electrode must be encased by how
many inches of concrete? -correct-answer-2"
Explanation:
To ensure proper grounding, the electrode must meet the following criteria:1.
Must be encased by 2 or more inches of concrete2. Electrode must be at or near
the bottom of the footing or foundation3. Concrete must be in contact with the
ground4. At least 20 feet of rebar that is at least ½" thick or 20 feet of solid copper
as a conductor
Required reinforcement bar splicing length or lap length is a function of: -correct-
answer-ALL
-Diameter of the reinforced bar.
-Stress in the reinforced bar at the cross section of splicing.
-Bond-strength between the reinforcing bar and the concrete.
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Bundled reinforcing bars are normally required to have a minimum cover of at
least the diameter of the bundle, except in the case of permanent proximity to
earth where the minimum will be: -correct-answer-3 inches
Releasing agent is used on forms, why is over use a problem? -correct-answer-Oil
in the water makes concrete that is less strong.
There are many surface finishes that can be applied to smooth finished concrete,
including: Stain, Paint, Stenciling Oil, Varnish, Epoxy. What considerations should
be taken into account before application? -correct-answer-Depends on finish to
be applied.
Strength tests are normally: -correct-answer-The average of 2 tests at a specified
time, taken from the same pour.
A mix with a higher percentage of rock has the advantage of: -correct-answer-
Being less expensive.
, 3|Page
For quick dry applications you would most commonly use which kind of concrete?
-correct-answer-Type 3
You have 5 employees that work for eight hours. How much would you have to
pay your employees, if one of them is an apprentice who makes $17/hour,
supervisor makes $33/hour, and three journeymen make $22/hour? -correct-
answer-$928.00
Explanation:
Apprentice: $17 x 8 hours = $136Supervisor: $33 x 8 hours = $264Journeymen: 3 x
$22 x 8 hours = $528Total: $136 + $264 + $528 = $928
Refer to the house plan. How many square feet is the foundation slab? -correct-
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.
CSLB CONCRETE C8 LICENSE PRACTICE TEST
#1 | COMPREHENSIVE Q&A FOR GUARANTEED
SUCCESS
To ensure proper grounding, the grounding electrode must be encased by how
many inches of concrete? -correct-answer-2"
Explanation:
To ensure proper grounding, the electrode must meet the following criteria:1.
Must be encased by 2 or more inches of concrete2. Electrode must be at or near
the bottom of the footing or foundation3. Concrete must be in contact with the
ground4. At least 20 feet of rebar that is at least ½" thick or 20 feet of solid copper
as a conductor
Required reinforcement bar splicing length or lap length is a function of: -correct-
answer-ALL
-Diameter of the reinforced bar.
-Stress in the reinforced bar at the cross section of splicing.
-Bond-strength between the reinforcing bar and the concrete.
,2|Page
Bundled reinforcing bars are normally required to have a minimum cover of at
least the diameter of the bundle, except in the case of permanent proximity to
earth where the minimum will be: -correct-answer-3 inches
Releasing agent is used on forms, why is over use a problem? -correct-answer-Oil
in the water makes concrete that is less strong.
There are many surface finishes that can be applied to smooth finished concrete,
including: Stain, Paint, Stenciling Oil, Varnish, Epoxy. What considerations should
be taken into account before application? -correct-answer-Depends on finish to
be applied.
Strength tests are normally: -correct-answer-The average of 2 tests at a specified
time, taken from the same pour.
A mix with a higher percentage of rock has the advantage of: -correct-answer-
Being less expensive.
, 3|Page
For quick dry applications you would most commonly use which kind of concrete?
-correct-answer-Type 3
You have 5 employees that work for eight hours. How much would you have to
pay your employees, if one of them is an apprentice who makes $17/hour,
supervisor makes $33/hour, and three journeymen make $22/hour? -correct-
answer-$928.00
Explanation:
Apprentice: $17 x 8 hours = $136Supervisor: $33 x 8 hours = $264Journeymen: 3 x
$22 x 8 hours = $528Total: $136 + $264 + $528 = $928
Refer to the house plan. How many square feet is the foundation slab? -correct-
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.
