Interior Design Interior Design Materials & Finishes 2 — Questions and Answers
Question 1: Which window treatment fabric weight is most appropriate for achieving full blackout light control?
- Sheer voile
- Linen blend
- Blackout-lined drapery (Correct answer)
- Solar shade
Correct answer: Blackout-lined drapery
Blackout-lined drapery uses a tightly woven or foam-backed lining layer to block virtually all light from entering a room.
Question 2: In material specification, VOC stands for which term relevant to indoor air quality?
- Variable Output Coefficient
- Volatile Organic Compounds (Correct answer)
- Verified Organic Coating
- Ventilation Opacity Control
Correct answer: Volatile Organic Compounds
VOCs (Volatile Organic Compounds) are chemicals that evaporate at room temperature from paints, adhesives, and finishes and can negatively affect indoor air quality.
Question 3: Which stone is highly porous and requires regular sealing in kitchen applications due to its susceptibility to etching from acidic substances?
- Granite
- Quartzite
- Marble (Correct answer)
- Soapstone
Correct answer: Marble
Marble is calcium carbonate-based and reacts chemically with acids, causing etching (dull marks), requiring sealing and careful maintenance in kitchens.
Question 4: Which tile installation pattern uses rectangular tiles arranged so the joints of one row align with the center of tiles in adjacent rows?
- Herringbone
- Running bond/brick (Correct answer)
- Basket weave
- Versailles
Correct answer: Running bond/brick
The running bond (or brick) pattern staggers tiles by half a length in each row, creating a classic, strong visual pattern familiar from brick walls.
Question 5: Acoustic ceiling tiles are specified primarily to achieve which performance goal?
- Increased thermal insulation
- Reduced noise transmission between floors and rooms (Correct answer)
- Enhanced fire resistance ratings
- Improved lighting reflectance
Correct answer: Reduced noise transmission between floors and rooms
Acoustic ceiling tiles are designed to absorb sound and reduce noise reverberation and transmission, improving speech intelligibility and occupant comfort.
Question 6: Which upholstery fabric is most appropriate for commercial hospitality applications requiring high durability and stain resistance?
- Silk velvet
- Cotton muslin
- Performance-grade vinyl or solution-dyed acrylic (Correct answer)
- Linen gauze
Correct answer: Performance-grade vinyl or solution-dyed acrylic
Performance fabrics like solution-dyed acrylics and vinyl withstand heavy use, moisture, and cleaning agents, making them the standard for commercial hospitality seating.
Interior Design Interior Design Materials & Finishes 2
Which window treatment fabric weight is most appropriate for achieving full blackout light control?