Masonry level one module 28105-13 Exam Questions and Answers

Masonry level one module 28105-13 Exam Questions and Answers The approximate percentage of a masonry structure's surface represented by mortar is around? A) 1 percent b) 5 percent c) 20 percent d) 40 percent - CORRECT ️️ c) 20 percent Of the materials used in mortar, the one that is least uniform is: a) lime b) Portland cement c) water d) sand - CORRECT ️️ d) sand The packaged mortar that includes measured quantities of all needed materials except water is called: a) preblended mortar b) ready-mix mortar c) masonry cement d) mortar blend - CORRECT ️️ a) preblended mortar Water that is used in mortar must be: a) filtered b) potable c) between 40 degrees and 70 degrees f d) purified - CORRECT ️️ b) potable ASTM specifies that Type S mortar must withstand a compression of at least a) 750 psi b) 1,250 psi c) 1,800 psi d) 2,500 psi - CORRECT ️️ c) 1,800 psi How well mortar sticks to itself is referred to as: a) cohesion b) compressive strength c) adhesion d) tensile strength - CORRECT ️️ a) cohesion Mortar and masonry units form a bond that is