Question

For fire-resistance purposes, _____ inch of unsanded gypsum plaster shall be deemed equivalent to 3/4 inch of one-to-three gypsum sand plaster or 1 inch of Portland cement sand plaster.

Answer 1

For fire-resistance purposes, 1 inch of unsanded gypsum plaster is equivalent to 3/4 inch of one-to-three gypsum sand plaster or 1 inch of Portland cement sand plaster.

Step-by-step explanation:

For fire-resistance purposes, 1 inch of unsanded gypsum plaster shall be deemed equivalent to 3/4 inch of one-to-three gypsum sand plaster or 1 inch of Portland cement sand plaster.