Master Electrician Practice Exam

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Enhance your knowledge for the Master Electrician Test with multiple choice questions and detailed explanations. Prepare efficiently with our quiz and boost your confidence for the exam day!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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What is the minimum burial depth for direct-buried cables rated at 13,000 volts?

18 inches
24 inches
30 inches
36 inches

The correct answer is: 30 inches

For direct-buried cables rated at 13,000 volts, the National Electrical Code (NEC) specifies a minimum burial depth of 30 inches. This depth is essential to ensure the safety and protection of the cable from physical damage and environmental factors. Cables operating at higher voltages require greater burial depths to minimize the risk of accidental contact and to reduce the potential for electrical hazards. Additionally, a deeper burial provides protection from the effects of soil movement and other disturbances. By adhering to this requirement, electricians ensure that the installation meets safety standards and provides reliable performance over the lifespan of the cable.