Final answer:
The suction line in engineering should be at least a certain distance from the bottom of the tank to prevent sediments from being absorbed.
Step-by-step explanation:
In engineering, the suction line is typically used in systems that involve fluids, such as pumps and compressors. The suction line is responsible for drawing fluid from a storage tank or reservoir into the system. To prevent sediments from being absorbed, the suction line should be at least a certain distance from the bottom of the tank, ensuring that only clean fluid is drawn into the system.