CID CID Materials, Textiles & Finishes 1 — Questions and Answers
Question 1: Which flooring material is generally considered most durable for high-traffic commercial interior spaces?
- Solid hardwood
- Wool carpet
- Luxury vinyl tile (LVT)
- Porcelain tile (Correct answer)
Correct answer: Porcelain tile
Porcelain tile is highly durable, scratch-resistant, moisture-proof, and maintains its appearance under heavy commercial foot traffic better than most alternatives.
Question 2: MDF (Medium Density Fiberboard) is commonly specified in interior design for:
- Structural load-bearing wall framing
- Cabinetry, moldings, and painted furniture construction (Correct answer)
- Exterior cladding in high-moisture environments
- Subfloor installation under hardwood
Correct answer: Cabinetry, moldings, and painted furniture construction
MDF has a smooth, uniform surface ideal for painting and routing, making it a popular choice for cabinetry, crown molding, and furniture pieces with painted finishes.
Question 3: The primary advantage of solid hardwood flooring over engineered hardwood is:
- Lower installed cost per square foot
- Superior moisture and humidity resistance
- Can be sanded and refinished multiple times over its lifespan (Correct answer)
- Easier DIY installation with click-lock systems
Correct answer: Can be sanded and refinished multiple times over its lifespan
Solid hardwood can be sanded and refinished numerous times over its lifespan, allowing homeowners to restore its appearance or change the stain color decades later.
Question 4: VOC (Volatile Organic Compounds) in interior materials are significant because they:
- Determine the fire resistance classification of materials
- Off-gas chemicals from materials that affect indoor air quality (Correct answer)
- Measure the moisture vapor transmission rate
- Indicate the structural load-bearing capacity
Correct answer: Off-gas chemicals from materials that affect indoor air quality
VOCs are chemicals that evaporate at room temperature from paints, adhesives, and furnishings, potentially causing health issues and degrading indoor air quality.
Question 5: Quartz countertops differ from quartzite countertops in that quartz is:
- A natural metamorphic stone mined directly from quarries
- An engineered product made from quartz crystals bound with resin (Correct answer)
- More porous and requires periodic sealing
- Softer and more susceptible to scratching
Correct answer: An engineered product made from quartz crystals bound with resin
Engineered quartz countertops are manufactured from ground quartz crystals mixed with polymer resins, making them non-porous and maintenance-free, unlike natural quartzite stone.
Question 6: Which paint finish level has the lowest sheen and is best for concealing wall imperfections?
- Semi-gloss
- Satin
- Eggshell
- Flat/matte (Correct answer)
Correct answer: Flat/matte
Flat or matte paint absorbs light rather than reflecting it, which minimizes the appearance of surface imperfections, making it ideal for ceilings and low-traffic walls.
CID CID Materials, Textiles & Finishes 1
Which flooring material is generally considered most durable for high-traffic commercial interior spaces?