NASCLA WRITTEN EXAM 2024.

NASCLA WRITTEN EXAM 2024.For concrete exposed to deicing chemicals, the maximum weight of slag cannot exceed what percentage? - correct answer 50% Samples of strength tests of each class of concrete - correct answer 5,000 sq ft strength tests are not required for total volume less than - correct answer 50 Construction joints in girders shall be offset a minimum distance of ___ times the width of the intersecting beams - correct answer 2 times What is the minimum cover for concrete cast against permanently exposed earth - correct answer 3 inches Maximum usable strain at extreme concrete compression fiber shall be assumed equal to - correct answer 0.003 Design yield strength of a structural steel core shall be specified min yield strength for the grade of structural steel used, but not exceed __ psi - correct answer 50,000 Splices in adjacent bars shall be staggered at least how many inches - correct answer 30 Thickness of the exterior basement walls and foundation walls shall not be less than __ thick - correct answer 7.5 inches Thickness of nonbearing concrete walls shall not be less than - correct answer 4 inches Prestressing steel should not be stressed until the compressive strength of concrete is - correct answer 4,000 psf