Interior Design Study Guide 2026
Everything you need to pass the Interior Design exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
📋 Interior Design Exam Format at a Glance
📚 Interior Design Topics to Study (21)
✍️ Sample Interior Design Questions & Answers
1. A Janka hardness rating is used to measure which property of flooring materials?
The Janka hardness test measures the force required to embed a steel ball into wood, indicating its resistance to dents and surface wear.
2. What is the primary goal of circadian (human-centric) lighting systems?
Circadian lighting adjusts color temperature and intensity in alignment with natural daylight cycles — cooler and brighter at midday, warmer and dimmer in morning and evening — to support occupants' biological rhythms.
3. In paint specification, LRV stands for which metric used in interior design?
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.
4. Please tick the term that represents a horizontal part that is placed over a huge aperture to support the weight above in the construction of a wall:
A lintel is a horizontal structural member placed over an opening in a wall, such as a window or door. Its primary function is to support the weight of the wall or masonry directly above the opening. This prevents the wall from collapsing and ensures the structural integrity of the aperture.
5. How should an Interior Design professional approach a novel situation not covered by standard procedures?
This is fundamental to Interior Design practice. Apply foundational principles, assess risks, consult resources, and document the rationale for decisions represents the professional standard for practical in the Interior Design certification framework.
6. Terrazzo flooring is composed of which materials?
Terrazzo consists of chips of marble, quartz, granite, or glass poured with a cement or epoxy binder, then ground and polished to a smooth finish.