CSLB Concrete C8 License Practice Test #2 2023 with 100% complete solutions

The maximum size of the conduit or pipe shall NOT exceed _______ of the thickness of the concrete. correct answers1/3 Which of the following tests for concrete is conducted at the site/field? correct answersColor 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. correct answers85 If the admixtures are used in concrete for the purpose of delayed setting and hardening of concrete, they are called _____________? correct answersRetarders Which of the following are the general types of vibrating needles that are in use? correct answersALL 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? correct answersALL OF THESE -Surface area method