Interior Design Interior Design Materials & Finishes 3

Question 1

What is the primary advantage of using porcelain tile over ceramic tile in interior applications?

Accepted Answer

Greater density, lower water absorption, and increased durability

Answer

Porcelain is fired at higher temperatures with finer clay, resulting in a denser, harder tile with a water absorption rate below 0.5%, suitable for floors and wet areas.

Question 2

Which wood finish penetrates the wood grain rather than forming a surface film, enhancing the natural texture while providing protection?

Accepted Answer

Oil/wax finish

Answer

Oil and wax finishes penetrate into the wood fibers to protect from within, preserving the natural tactile feel and grain of the wood surface.

Question 3

In paint specification, LRV stands for which metric used in interior design?

Accepted Answer

Light Reflectance Value

Answer

Light Reflectance Value (LRV) measures the percentage of light a color reflects on a scale of 0 (pure black) to 100 (pure white), crucial for lighting design.

Question 4

Which metal finish applied to fixtures and hardware is most resistant to tarnishing, fingerprints, and everyday wear in kitchen and bath applications?

Accepted Answer

Brushed nickel

Answer

Brushed nickel's textured surface hides water spots and fingerprints better than polished finishes and resists tarnishing, making it one of the most practical hardware choices.

Question 5

What does the CE (Coefficient of Friction) rating on tile specify for interior designers?

Accepted Answer

Slip resistance of the tile surface

Answer

The coefficient of friction (COF) rating indicates a tile's slip resistance; a COF of 0.60+ is recommended for floor tiles in wet or commercial areas.

Interior Design Practice Test

Interior Design Practice Test

Interior Design Interior Design Materials & Finishes 3