Interior Design Lighting Design & Illumination 3

Question 1

What is 'daylighting' as a design strategy in interior design?

Accepted Answer

The strategic use of natural light from windows and skylights to illuminate building interiors

Answer

Daylighting is the deliberate use of windows, skylights, light shelves, and other openings to bring natural light into interior spaces, reducing energy use and enhancing occupant wellbeing.

Question 2

What does the Light Reflectance Value (LRV) of a paint color or surface material measure?

Accepted Answer

The percentage of visible light reflected by a surface or color

Answer

LRV measures the percentage of visible light that a surface or paint color reflects back, ranging from 0 (absorbs all light) to 100 (reflects all light).

Question 3

Which dimmer technology is specifically designed to be compatible with LED and CFL bulbs?

Accepted Answer

Electronic low-voltage (ELV) or 0-10V LED-compatible dimmer

Answer

Trailing-edge (ELV) and 0-10V dimmers are engineered for LED and CFL compatibility, preventing flickering, buzzing, and premature lamp failure common with standard incandescent dimmers.

Question 4

What is the primary goal of circadian (human-centric) lighting systems?

Accepted Answer

To support the body's natural 24-hour biological clock by adjusting color temperature and intensity throughout the day

Answer

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.

Question 5

What does a fixture schedule in a lighting legend on construction drawings typically include?

Accepted Answer

The fixture type code, manufacturer, catalog number, lamp type, wattage, and mounting method

Answer

A fixture schedule identifies each luminaire by its type symbol and provides the manufacturer, catalog number, lamp specification, wattage, and mounting details needed for procurement and installation.

Interior Design Practice Test

Interior Design Practice Test

Interior Design Lighting Design & Illumination 3