Absolute Free PVIP Exam Practice for Comprehensive Preparation 

A residential PV system uses two 120.240Vac utility-interactive inverters with a sealed lead-acid battery energy backup for protected loads. The MOST important protected load consideration when operating in the backup mode is that: 

A homeowner is weighing the PV module options for a roof-mounted solar array. Which is a correct option to present to the homeowner? 

A PV system installation utilizes micro inverters connected to each module of the array. Each micro inverter has a nominal rated output of 250WV. Single phase. The microinverters are listed so that multiple inverters may be connected in parallel to a single feeder circuit, and each inverter has ancable and connector rated for 30A. What is the MAXIMUM number of inverters that may be wired together on a single 30A feeder circuit? 

The following dc portion of a PV schematic (functionally grounded conductor not shown) is submitted to the building official for permit approval. The building official, who also is he AHJ, allow the system to be installed by requiring what NEC-required MINIMUM size equipment grounding conductor at Location A?

Which of the following is an NEC requirement regarding access for large-scale PV electric power production facilities?