What should be the maximum exposure rate on the surface of a source transport container?

The maximum exposure rate on the surface of a source transport container is set to a regulatory standard to ensure safety during the transport of radioactive materials. An exposure rate of 10 mR/h at the surface aligns with established guidelines that balance the necessity for radiological safety while allowing for effective transport of these materials.

This limit is in place to protect individuals who may come into contact with or be near the transportation vehicle containing radioactive sources. Keeping the exposure rate at 10 mR/h helps minimize the risk of radiation exposure to workers, emergency responders, and the general public. It ensures that the transportation of materials is handled safely, demonstrating a commitment to upholding stringent safety and regulatory protocols for radioactive materials.

Higher exposure rates indicated by other options would not be in compliance with safety standards and could pose a greater risk of radiation exposure. Thus, the answer reflects the importance of adhering to safety limits governing the transport of radioactive materials.