NALMCO Certified Apprentice Lighting Technician (CALT) Practice Exam

What is the primary reason to replace burned-out lamps?

1. To improve aesthetics

2. To maintain light levels

3. To increase energy costs

4. To comply with regulations

The correct answer is: To maintain light levels

Replacing burned-out lamps primarily serves to maintain light levels in a space. This is crucial because consistent lighting is essential for safety, visibility, and overall functionality in both residential and commercial environments. When lamps burn out, light levels drop, which can lead to areas that are inadequately lit, potentially creating hazards or leading to decreased productivity—particularly in settings like schools, offices, or industrial environments. Maintaining the appropriate light levels also contributes to optimal working conditions and can improve the quality of tasks being performed. It ensures that spaces remain functional and comfortable for occupants. While aesthetics, compliance with regulations, and energy costs play roles in lighting management, the immediate need to ensure adequate lighting makes maintaining light levels the most critical reason for replacing burned-out lamps.