Final answer:
The statement that Part 20 requires contamination surveys to be performed is true. It ensures the safety and containment of radioactive materials.
Step-by-step explanation:
The statement that Part 20 requires contamination surveys to be performed to detect the accidental spread of radioactive material in the course of routine use is true. These surveys are a critical aspect of safety protocols and regulations, ensuring that any spread of radioactive material is quickly identified and remediated. Contamination surveys are important in a variety of settings where radioactive materials are used, including medical facilities, research labs, and industrial applications such as checking the thickness of materials, flaw detection in structural metals, pest control through the sterilization of insects, and the irradiation of foods to eliminate spoilage microorganisms.