4/7/2024 Instal the new version for iphoneIndiana residential appliance installer license prep classRead Now![]() ![]() ![]() Important Note: Reference materials may be highlighted, underlined, tabbed, and notes math are all permitted prior to the exam session. NEC 2023 (NFPA 70 National Electrical Code).The following reference materials are allowed in the examination center: The Contractors School offers the only Complete 3-in-1 System consisting of:ġ) New NEC 2023 Home Study Computer Program with 15 excellent sample exams with 80 questions in each module to simulate your actual PSI state exam! Correct Answer: Ohms Law: I = P/E = 11000 watts / 240 volts = 46 A.Use Ohm’s Law to calculate what the load current would be, given that a 11,000 watt electrical hot tub (spa heater) is connected to a 240-volt residential service?.Correct Answer: NEC – Table 8, Chapter 9 for circular mil conversion and “k” calculations L = Vd x CM/(2 x I x K) = 120V x 3% x 6530CM/(2 x 13.8A x 12.9) = 66 feet.Use Ohm’s Law and the NEC to calculate the what the maximum distance would be between the source voltage and a motor load given the following conditions 120 VAC, 1 HP pump motor, 13.8 amps FLA, 12 AWG copper, and Maximum voltage drop of 3%. ![]()
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