NV C-18 Masonry Practice Questions - Nevada C-18 Masonry Contractor Examination Exam

What is the difference between rubble stone masonry and ashlar stone masonry?

Rubble is always dry-stacked; ashlar is always grouted solid Ashlar is only used below grade; rubble is only a veneer There is no recognized difference in IBC or TMS Rubble uses unsquared or roughly shaped stone; ashlar uses dressed, squared units laid in regular courses

Correct Answer:

Rubble uses unsquared or roughly shaped stone; ashlar uses dressed, squared units laid in regular courses

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