Red Seal Plumbing Practice Exam

A building sewer is defined as the part of the drainage system from the end of the building drain that extends horizontally away from the building and connects to the public sewer or private sewage disposal system, approximately 1m outside of the building wall. This differs from the building drain, which is the pipe that collects and directs all the waste materials from the building to the building sewer. Therefore, the correct answer is True as the building sewer does indeed connect to the building drain outside of the building wall. Option B is incorrect because it states the opposite - that the building sewer does not connect to the building drain. Option B is also incorrect as it suggests the building sewer is inside the building instead of outside. It is important to understand the definitions of both building sewer and building drain to accurately answer this question.