NCIDQ NCIDQ 4 — Questions and Answers
Question 1: Which type of lighting is best for eliminating shadows on a subject's face in a retail dressing room?
- Uplighting from the floor
- Side-mounted vertical strip lighting flanking the mirror (Correct answer)
- A single ceiling-mounted downlight directly overhead
- Recessed linear lighting along the ceiling perimeter
Correct answer: Side-mounted vertical strip lighting flanking the mirror
Vertical strip lights flanking a mirror provide even, shadow-free illumination from both sides, mimicking natural sidelight ideal for dressing rooms.
Question 2: What is the primary role of a design development (DD) phase submittal?
- To obtain building permit approval
- To refine and finalize design decisions before construction documents begin (Correct answer)
- To issue subcontractor bids
- To present initial concept sketches to the client
Correct answer: To refine and finalize design decisions before construction documents begin
The DD phase refines the schematic design, resolving materials, systems, and spatial details so that construction documents can be produced accurately.
Question 3: A one-hour fire-rated wall assembly is required between two tenant spaces. Which scenario violates this requirement?
- Using 5/8-inch Type X gypsum board on each side
- Providing UL-listed fire-rated penetration firestop at pipe penetrations
- Installing a non-fire-rated hollow metal door without a closer (Correct answer)
- Using resilient channel to improve sound isolation
Correct answer: Installing a non-fire-rated hollow metal door without a closer
A fire-rated wall requires a fire-rated door assembly with an automatic closer; a non-rated door compromises the entire assembly's fire rating.
Question 4: In acoustics, what does NRC (Noise Reduction Coefficient) measure?
- The transmission of sound through a wall
- The sound-absorbing performance of a material surface (Correct answer)
- The decibel reduction over a given distance
- The impact noise resistance of a floor assembly
Correct answer: The sound-absorbing performance of a material surface
NRC measures how much sound a material absorbs on a scale of 0 (perfect reflection) to 1 (perfect absorption), used to select acoustic wall and ceiling finishes.
Question 5: Which phase of an interior design project typically results in a set of 'bid documents' sent to contractors for pricing?
- Schematic Design
- Programming
- Construction Documents (Correct answer)
- Post-Occupancy Evaluation
Correct answer: Construction Documents
Completed construction documents—drawings and specifications—form the bid package that contractors use to provide accurate cost estimates.
Question 6: What is the maximum height of a handrail above a stair nosing per IBC requirements?
- 30 inches
- 34 inches
- 38 inches (Correct answer)
- 42 inches
Correct answer: 38 inches
IBC and ADA require handrails to be between 34 and 38 inches measured vertically from the stair nosing, with 38 inches as the maximum.
Question 7: A designer is working on a healthcare facility. Which ASHRAE standard governs ventilation and indoor air quality requirements for that building type?
- ASHRAE 62.2
- ASHRAE 55
- ASHRAE 170 (Correct answer)
- ASHRAE 90.1
Correct answer: ASHRAE 170
ASHRAE Standard 170 specifically governs ventilation of health care facilities, setting minimum air change rates and filtration requirements for patient areas.
NCIDQ NCIDQ 4
Which type of lighting is best for eliminating shadows on a subject's face in a retail dressing room?