🔍 Key Concepts
• CRT (Cathode Ray Tube) construction – glass envelope, vacuum inside, and phosphor coating on the screen
• What happens to precision electronic equipment when subjected to shock or impact
• Potential safety hazards (to people and equipment) associated with a damaged vacuum tube or monitor
💭 Think About
• Think about what’s physically inside a CRT and how it behaves if the glass envelope is cracked or broken.
• Which of the options describes a realistic physical consequence of dropping a vacuum tube device, rather than something unlikely or minor?
• Consider the difference between minor performance issues (like small errors) and serious mechanical or safety failures.
✅ Before You Answer
• Ask yourself which choices reflect actual CRT failure modes you may have seen or read about.
• Eliminate any answer that assumes no significant risk from dropping a glass, vacuum-based device.
• Focus on which effect would pose the greatest hazard to nearby personnel and equipment if a CRT is dropped and damaged.