NALMCO Certified Apprentice Lighting Technician (CALT) Practice Exam

A failed lamp is commonly referred to as a what?

1. Lumen depreciation

2. Payback

3. Burnout

4. Bi-pin lamp

The correct answer is: Burnout

A failed lamp is commonly referred to as burnout. This term is widely used in the lighting industry and generally describes the condition when a lamp is no longer functional due to various reasons, such as the filament inside an incandescent bulb breaking or the gas in a fluorescent tube depleting. Understanding this terminology is crucial for lighting technicians, as they often need to diagnose lighting issues and differentiate between a burned-out lamp and other potential problems in a lighting system. In contrast, lumen depreciation refers to the gradual decline in light output of a lamp over its lifespan, payback typically pertains to the return on investment in energy-efficient lighting, and bi-pin lamp describes a type of lamp connection rather than its operational status. Familiarity with these definitions enhances the ability to communicate effectively regarding lighting systems and their maintenance.