Initial Core 2 study project

notes/OPS-5-environmental-controls.md

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+# OPS-5: Environmental Controls
+
+Status: not started
+
+Domain:
+- 4.0 Operational Procedures
+
+Objective alignment:
+- 4.5 Environmental controls
+
+## What You Need To Know
+
+Environmental controls protect equipment and people.
+
+Key topics:
+- MSDS or SDS documentation
+- Battery disposal
+- Toner disposal
+- Device and asset disposal
+- Temperature
+- Humidity
+- Ventilation
+- Equipment placement
+- Dust cleanup
+- Compressed air and vacuums
+- UPS
+- Surge suppressors
+- Surges, brownouts, and blackouts
+
+## Memory Trick
+
+Use **P-H-D-P**:
+
+- **P**ower
+- **H**eat and humidity
+- **D**ust
+- **P**roper disposal
+
+Shortcut:
+- **Bad power, heat, dust, or disposal can turn a simple support issue into a safety issue.**
+
+## Exam Clues
+
+- Use SDS/MSDS for chemical and material safety guidance.
+- Toner and batteries require proper disposal or recycling.
+- UPS protects against short outages and gives time for safe shutdown.
+- Surge suppressors protect against voltage spikes.
+- Brownouts are low-voltage events; blackouts are power loss.
+