Practice Test Geeks(CLC) Certified Lighting Consultant Practice Test
← All CLC Flashcard Decks

Lighting Design & Application Flashcards

7 cards from real CLC practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Lighting Design & Application flashcards as text

  1. Which IES recommended practice provides guidance for office lighting design in the United States?

    Answer: ANSI/IES RP-1

    ANSI/IES RP-1 (Recommended Practice for Office Lighting) provides guidelines for illuminance levels, luminance ratios, and visual comfort in office environments.

  2. A designer is evaluating two luminaires: one with an LER of 85 lm/W and one with 60 lm/W. What does LER stand for and which is more efficient?

    Answer: Luminaire Efficacy Rating; the 85 lm/W unit is more efficient

    LER (Luminaire Efficacy Rating) measures system lumens per watt for the complete luminaire; higher values indicate greater efficiency.

  3. In exterior lighting design, what is the main goal of 'full cutoff' classification?

    Answer: To prevent any light from being emitted at or above 90° from nadir

    Full cutoff luminaires emit zero candelas at 90° and above from nadir, minimizing light trespass, glare, and sky glow.

  4. A restaurant designer wants warm, intimate lighting. Which CCT range is most appropriate?

    Answer: 2700–3000K

    2700–3000K produces warm white light that creates an intimate, flattering ambiance ideal for dining environments.

  5. What lighting design strategy uses a combination of ambient, task, and accent layers to provide flexibility and visual interest?

    Answer: Layered lighting design

    Layered lighting design uses multiple lighting types—ambient, task, accent, and decorative—to create flexible, visually rich environments.

  6. Which factor most directly affects the spacing-to-mounting-height (S/MH) ratio used in lighting layout calculations?

    Answer: The luminaire's beam spread and photometric distribution

    The S/MH ratio is derived from the luminaire's photometric distribution; wider beam spreads allow greater spacing relative to mounting height.

  7. In a classroom lighting design, why is it important to minimize luminaire luminance in the 55°–85° zone from nadir?

    Answer: To prevent discomfort glare in the line of sight of seated students

    High luminance in the 55°–85° zone falls directly in a seated person's horizontal line of sight, causing discomfort glare that impairs reading and concentration.