Reinforced Concrete Quizzes & Trivia


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Reinforced Concrete Questions and Answers


  • A strength test shall be the average of the strengths of ________ cylinders made from the same sample of concrete and tested at ____ days or at test age designated for determination of f’c.
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  • Beams, girders, or slabs supported by columns or walls shall not be cast or erected until concrete in the vertical support members is no longer plastic. 
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  • A standard hook has a ___ degree bend plus 12 db (bar diameters) extension at the free end of bar
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  • Precautions for cold weather concrete should be followed when the mean daily temperature falls to ______degrees Fahrenheit. 
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  • A Swiss Hammer operates on the principle that the rebound of a spring-loaded steel plunger striking the surface of concrete is proportional to the ______ of that concrete. 
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  • A Swiss Hammer is a quick ­­­­­­­­­­­_______ test that can be used for determination of the approximate _______ strength of concrete in place, but it cannot be used to replace properly conducted cylinder or core tests. 
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  • Cylinders being transported to the lab should be _______. 
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  • When rodding the final layer, the rod should penetrate. 
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  • Steel for welded reinforcing is best described by ASTM ________.
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  • How many bar diameters is the class A lap length for a #5 bar in 6,000 psi concrete?
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  • What is the clearance for a #4 bar in formed concrete exposed to earth?
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  • Sheet SC1-01 on column line C4 between lines CD and CE, what is the footing dowel size and spacing?
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