Alabama Contractors License Practice Exam

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Study for the Alabama Contractors License Test. Prepare with quizzes featuring flashcards and multiple-choice questions, each supported by hints and explanations. Equip yourself for exam success!

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Which of the following is NOT a material used to support masonry over openings?

Steel Lintels
Reinforced concrete
Grade 3 lumber
Masonry arches

The correct answer is: Grade 3 lumber

In construction, the support of masonry over openings, such as windows and doors, requires materials that can adequately bear the load above those openings. Steel lintels, reinforced concrete, and masonry arches are all designed to provide the necessary support. Steel lintels are widely used for their strength and ability to span long distances while supporting the weight of the masonry above. Reinforced concrete also serves a similar purpose, offering durability and flexibility in design. Masonry arches are an age-old method of support that distributes weight evenly and can effectively carry loads because of their shape. On the other hand, grade 3 lumber, while it can be used structurally in certain applications, does not provide sufficient strength or stability for load-bearing applications above masonry openings. Its structural integrity is typically less reliable under heavy loads compared to the other materials mentioned. This lack of appropriate strength makes it unsuitable for supporting masonry, especially in applications where durability and safety are critical.