QMED — Electrician / Refrigerating Engineer exam topics

Each topic page shows the rules it draws on, the source text those rules come from, and a sample question from that topic’s drill set.

• DC circuits and electronic principles
• Electrical safety and general safety
• AC circuits and theory
• Refrigeration cycle and components
• Motors and generators
• Switchboards and distribution systems
• Motor controllers and remote control
• Firefighting, damage control, and emergency response
• Electrical troubleshooting and maintenance
• Air conditioning, ventilation, and compressed air
• Electrical measuring devices and instrumentation
• Batteries and storage systems
• Auxiliary machinery and mechanical systems