Humber/Ontario Real Estate Course 3 Exam Practice

Which statement is correct about drywall?

1. It can only be installed vertically.

2. Drywall is rarely used in modern constructions, replaced mainly by plaster.

3. Gypsum is commonly used to manufacture drywall.

4. Drywall is primarily for structural integrity, not decorative purposes.

5. Plastic is primarily used in drywall.

6. Drywall must be covered with insulation.

The correct answer is: Gypsum is commonly used to manufacture drywall.

Gypsum is indeed the primary material used in the manufacture of drywall, making the statement about drywall being made from gypsum correct. Drywall consists of a core of gypsum sandwiched between two sheets of heavy paper. This composition not only contributes to its lightweight nature but also provides effective fire resistance, soundproofing, and ease of installation. The other statements do not accurately reflect the characteristics or usage of drywall in modern construction. For example, drywall can be installed both vertically and horizontally, and it remains a staple in construction, widely used alongside or in place of other materials like plaster. Its applications extend beyond just structural aspects; drywall can also serve decorative purposes with various finishes. Additionally, plastic is not a primary component of drywall, and drywall installation does not require coverage with insulation, although insulation may be used in specific scenarios for additional soundproofing or thermal efficiency. Thus, the emphasis on gypsum’s role in drywall manufacturing is essential in understanding why this statement is the correct one.