Massachusetts Unrestricted Construction Supervisor License Practice Test

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Prepare for the Massachusetts Unrestricted Construction Supervisor License Test. Study with flashcards and multiple-choice questions, each accompanied by hints and explanations. Ace your exam with confidence!

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Which statement is NOT true regarding second-hand masonry units?

Old mortar must be cleaned from unit
Units must be free of cracks and other defects
Units must conform to requirements of new units
May not be used under any circumstances

The correct answer is: May not be used under any circumstances

The statement that second-hand masonry units may not be used under any circumstances is not true. In construction, second-hand masonry units can be reused, provided they meet certain conditions. The use of reclaimed materials is often encouraged for sustainability reasons, as long as they are adequately inspected and meet safety standards. Second-hand units must be thoroughly cleaned, ensuring old mortar is removed, and must also be free of cracks and other defects to ensure their structural integrity. While there are regulations regarding the quality and performance standards for masonry units, these typically allow for the use of second-hand units that conform to similar requirements as new materials, but they do not prohibit their use altogether. Thus, the choice stating that they may not be used at all fails to recognize the potential for their reuse in appropriate conditions.