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NABCEP Practice EXAM QUESTIONS Exam Prep Questions And Answers ()
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NABCEP Practice EXAM QUESTIONS Exam Prep Questions And Answers (202472025) If an array is facing south at equinox at noon, what must the tilt angle be in order for the array to face directly at the sun at latitude 30? - ✔✔A. 33 degrees B. 48 degrees C. 18 degrees D. 30 degrees The temperature rating of the insulation of a conductor when designing a PV system effects the - ✔✔A. ability of the wire to withstand fire B. ability of the wire to withstand smoke C. ability of the wire to carry current D. ability of the wire to withstand physical damag When a bypass diode kicks in from a leaf on a solar cell, which parameter would you see reduced on a single string with string level MPPT? - ✔✔A. Current B. Voltage C. Ohms D. Amp hours Given a PV module with the following characteristics, what would be the expe cted output at Standard Test Conditions if the inverter and PV were working perfectly and sending power to the grid? 20 in series 1 PV source circuit Voc = 44V Vmp = 35.2V Power = 305W Isc = 9.27A - ✔✔A. 704V and 8.66A B. 600V and 8A C. 1000V and 8.2A D. 700V and 9.27A Which is the best and safest way to determine current in a PV output circuit? - ✔✔Clamp on ammeter A remote cabin uses the loads below per day, how much total energy is used per day? 1000W toaster for 6 minutes 1.2kW hot water heating e lement for 3 hours per day Three 17W LED lights for 3 hours per day iPhone 100 charger at 20W for 3 hours per day - ✔✔3.9 kWh What is "blocking" used for? - ✔✔Attaching to a roof in a place where there is no rafter If you are going to work on the roof to fix a ground fault and the dc disconnect is on the ground level, which of the following is the best safety procedure? - ✔✔e roof B. Removing the GFCI fuse before going on the roof C. Leaving the disconnect in the on position D. Lockout Tagout Who makes r equirements for electrical safety for employees? - ✔✔OSHA Typical utility interactive systems in the US will - ✔✔Export to the utility extra power for credit A PV system that would produce 7kWac under STC conditions, which is not clipping power is instal led in a location with an average of 6PSH (peak sun hours, aka kWh/square meter per day average) would produce how much energy in one year? - ✔✔15,330 kWh When PV modules are tested by CSA to the UL 1703 standard, they are tested among other things for - ✔✔Fire safety If and inverter indicates that there has been a ground fault, what is the first thing that a O&M technician should do? - ✔✔Open all the disconnects If doing an energy audit, which device is the best to replace to conserve energy? - ✔✔New resistance heaterThe benefits of buying summaries with Stuvia:
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