Final answer:
Pipe hangers and supports are rated for specific pipe size and weight, ensuring the safety and stability of the pipes.
Step-by-step explanation:
Pipe hangers and supports are indeed rated for specific pipe size and weight, which means that the statement is true.
For example, a pipe hanger designed for a 4-inch pipe with a maximum weight of 200 pounds would not be suitable for holding a 6-inch pipe that weighs 300 pounds.
It is important to use the correct hangers and supports to ensure the safety and stability of the pipes.