Red Seal Plumbing Practice Exam

An oil interceptor would most likely be found in a/an:

1. Auto repair shop

2. Dry cleaning plant

3. Residential kitchen

4. Hospital

The correct answer is: Dry cleaning plant

Oil interceptors are designed to trap and remove oil and grease from wastewater before it enters the sewer system. As such, it is typically found in facilities that generate a significant amount of oily wastewater, such as a dry cleaning plant. Option A, an auto repair shop, may also generate oily wastewater, but not to the same extent as a dry cleaning plant. Option C, a residential kitchen, may generate small amounts of oil and grease, but not enough to require an oil interceptor. Option D, a hospital, does not typically generate oily wastewater and therefore would not require an oil interceptor.