CSLB CONCRETE C8 LICENSE PRACTICE TEST 1 LATEST 2025/2026 ACTUAL
EXAM WITH COMPLETE QUESTIONS AND CORRECT DETAILED ANSWERS
(100% VERIFIED ANSWERS) |ALREADY GRADED A+| ||PROFESSOR VERIFIED||
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To ensure proper grounding, the grounding electrode must be
encased by how many inches of concrete? - 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: - ANSWER-ALL
-Diameter of the reinforced bar.
-Stress in the reinforced bar at the cross section of splicing.
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-Bond-strength between the reinforcing bar and the concrete.
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: - ANSWER-3 inches
Releasing agent is used on forms, why is over use a problem? -
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? - ANSWER-Depends on finish to be applied.
Strength tests are normally: - ANSWER-The average of 2 tests at
a specified time, taken from the same pour.
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A mix with a higher percentage of rock has the advantage of: -
ANSWER-Being less expensive.
For quick dry applications you would most commonly use which
kind of concrete? - 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? - 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? - ANSWER-1844 sq ft
Explanation: