Interior Design Interior Design Materials & Finishes

Question 1

Which flooring material is produced by pressing layers of wood veneer together with adhesive under heat and pressure?

Accepted Answer

Engineered hardwood

Answer

Engineered hardwood consists of a real wood veneer top layer bonded over multiple plywood layers, offering greater dimensional stability than solid wood.

Question 2

A Janka hardness rating is used to measure which property of flooring materials?

Accepted Answer

Resistance to denting and wear

Answer

The Janka hardness test measures the force required to embed a steel ball into wood, indicating its resistance to dents and surface wear.

Question 3

Which countertop material is non-porous, heat-resistant, and composed of natural quartz crystals bound with resin?

Accepted Answer

Engineered quartz

Answer

Engineered quartz (e.g., Silestone, Caesarstone) is manufactured from 90–95% ground quartz and polymer resins, creating a non-porous, low-maintenance surface.

Question 4

In textile specification, what does the term 'double rub count' measure?

Accepted Answer

Fabric abrasion resistance and durability

Answer

Double rub count measures how many back-and-forth cycles a fabric withstands before showing wear, with 30,000+ considered heavy-duty commercial grade.

Question 5

Which paint finish is most appropriate for high-traffic areas such as hallways, kitchens, and trim due to its durability and cleanability?

Accepted Answer

Semi-gloss

Answer

Semi-gloss paint offers a durable, moisture-resistant finish that is easily wiped clean, making it ideal for trim, kitchens, and bathrooms.

Interior Design Practice Test

Interior Design Practice Test

Interior Design Interior Design Materials & Finishes