Red Seal Plumbing Practice Exam

A gravity system would not provide adequate pressure for upper floors because it operates on the principle of gravitational force and relies on the height of the water source to create pressure. This means that as the water moves downward from the source, the pressure decreases, making it inadequate for reaching upper floors. Other options, such as a forced system and a pressurized system, use pumps or compressors to create and maintain pressure, making them better suited for providing water to upper floors. A pumped system would also not provide adequate pressure for upper floors because it requires a water source at a higher elevation, similar to a gravity system, in order to operate effectively.