Which of the following is NOT a common stressor for cryogenic containers?

• A. Thermal
• B. Chemical
• C. Mechanical
• D. Electrical

Answer: (D)

The main idea here is recognizing which forces cryogenic containers are designed to withstand. These vessels must cope with thermal stresses from extreme cold and large temperature changes, mechanical stresses from handling and transport, and chemical stresses from compatibility and potential embrittlement of materials exposed to very low temperatures or to the cryogenic fluids themselves. Electrical stress isn’t a primary factor seen in the container’s structural integrity; while electrical safety and insulation matter for the overall system, the vessel itself isn’t subjected to significant electrical loads or fields as a basic stressor. So, electrical stress is not a common stressor for cryogenic containers.