Journeyman Electrician Practice Exam

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Prepare for the Journeyman Electrician Exam. Test your skills with multiple-choice questions designed to help you succeed. Each question comes with hints and detailed explanations to assist in your study process.

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What is the minimum calculation for general purpose receptacle loads in commercial buildings before demand factors are applied?

120 VA per receptacle
150 VA per receptacle
180 VA per receptacle
200 VA per receptacle

The correct answer is: 180 VA per receptacle

The minimum calculation for general purpose receptacle loads in commercial buildings before applying demand factors is established by the National Electrical Code (NEC). The standard stipulates that the minimum load per general purpose receptacle should be calculated at 180 volt-amperes (VA) for the purposes of designing electrical systems. Using 180 VA per receptacle allows for a realistic assessment of potential electrical loads, accommodating the use of various devices that may be plugged into these receptacles. This calculation provides a safety margin, ensuring that the electrical system can handle the load without overloading circuits. It is important to note that calculations of receptacle loads are essential for appropriate sizing of conductors, circuit breakers, and panel boards, aiding in the overall safety and functionality of the electrical distribution system in commercial environments.