CSLB CONCRETE C8 LICENSE PRACTICE TEST #2 QUESTIONS | TESTED AND PROVEN ANSWERS | LATEST UPDATE 2024/2025 100% (GRADE A+)

CSLB CONCRETE C8 LICENSE PRACTICE TEST #2
QUESTIONS | TESTED AND PROVEN ANSWERS |
LATEST UPDATE 2024/2025 100% (GRADE A+)
The maximum size of the conduit or pipe shall NOT exceed _______ of the thickness of the

concrete.


Ans>> 1/3




Which of the following tests for concrete is conducted at the site/field?


Ans>> Color Test




Explanation:


Rest of the above are laboratory tests.




If the concrete compressive strength specified is less than 3600 psi, it has the option of being

tested at 28 days and is able to accept the concrete if it attains ___________ percentage of the

minimum required strength.


Ans>> 85




1

,If the admixtures are used in concrete for the purpose of delayed setting and hardening of

concrete, they are called _____________?


Ans>> Retarders




Which of the following are the general types of vibrating needles that are in use?


Ans>> ALL ANSWERS!




-Internal vibrators


-Immersion vibrators


-Surface vibrators




Concrete proportioning is done based on the facilities available at the site. Which are the

general proportioning methods used for concrete?


Ans>> ALL OF THESE




-Surface area method


-Mix design based on flexural strength



2

, -Maximum destiny method




The minimum cementitious material that is required for concrete bridging deck is

______________lbs/cu yd.


Ans>> 675




The amount of free water used in concrete shall not exceed ____________ pounds per cubic

yard of concrete.


Ans>> 310




Explanation:


If the SCM are added, it can be increased to 20 pounds per each required 100 pounds of

cementitious material in excess of 550 pounds per cubic yard.




If the concrete curbs are to be constructed over the existing pavement, _______________ are

used to fix them to pavement.


Ans>> Steel dowels




3