🔍 Key Concepts

• Basic sequence of electrical troubleshooting steps • Safety considerations before testing or energizing a circuit • Difference between high-level planning, insulation testing, and simple checks like fuses and voltage

💭 Think About

• When something electrical stops working, what simple checks can you safely do first before using specialized test equipment? • Which option is both quick and non-destructive, and gives you immediate information about whether power is reaching the circuit? • Which actions listed are usually done later in a systematic troubleshooting process rather than as the very first step?

✅ Before You Answer

• Identify which choice directly checks power availability to the circuit • Identify which choice uses a high-voltage insulation tester (megger) and whether that is normally a first or later step • Identify which action is the quickest, least invasive initial check that many standard troubleshooting guides recommend