Construction Supervisor License Practice Exam

Recessed luminaries in a restaurant between conditioned and unconditioned space shall be what type of fixtures?

1. Type IC

2. Type T

3. Type A

4. Type R

The correct answer is: Type IC

Recessed luminaires that are installed between conditioned and unconditioned spaces must be Type IC fixtures. Type IC fixtures are specifically designed for insulation contact, which means they can safely come into contact with insulation without overheating. This feature is critical in scenarios where recessed lights are placed in ceilings or walls that may contain insulation, as it ensures both safety and compliance with building codes. In contrast, other fixture types like Type T, Type A, and Type R have different specifications regarding insulation contact and are not suitable for installations where they may be surrounded by insulation or situated in areas with varying temperatures. Therefore, Type IC fixtures are essential for maintaining proper thermal performance and ensuring that the installation meets safety standards in environments, such as restaurants, where light fixtures may encounter different air pressures and insulation configurations. This distinction is crucial for both energy efficiency and fire safety in building design.