Free NABCEP PVIP Exam Dumps Questions & Answers

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

• A.  All fencing and associated gates must have ac and dc current and voltage exposure labvels and must be electrically isolated from the solar facility.
• B.  Access to remote isolating equipment for servicing is allowed for individual other than qualified persons when the equipment is enclosed within a secure structure.
• C.  Field-applied hazard markings must be installed, and access to the supply station is to be restricted by fencing or other adequate means.
• D.  Arc flash warning labels must be field-applied by the installer at all access points for qualified persons and at the point of the utility interconnection directory.

An 8 AWG bare copper equipment ground conductor (EGC) is wire tied to the module mounting structure of a commercial rooftop solar array. After a few years of operation, some spots on the EGCbegin to turn a green color and appear to be corroding more significantly that other places. What would the MOST likely cause of the problem?

• A.  Nyton wire ties in contact with the copper wire
• B.  Bypass dlode failures inducing current on the EGC
• C.  A break in the EGC, leaving the array ungrounded
• D.  Array racking touching the EGC at multiple points

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.  Rapid shutdown requirements within 1 ft of the array boundary.
• B.  Polycrystalline modules are more shade-tolerance than either amorphous or monocrystalline modules and allow a larger array to be installed, including in area where shading could be seasonally problematic.
• C.  Microinverters can be installed with either polycrystalline or monocrystalline modules, negating the need for rapid shutdown compliance.
• D.  Building-integrated PV shingles will be flush or nearly flush with other shingles, but the electrical energy produced will be less than polycrystalline or monocrystalline modules.

A tap conduct is to be connected to a feeder supplied by both a utility service source and a utility-interactive inverter source. The feeder utility source is a 400A breaker in a service panel, the inverter overcurrent protection device is rated at 100A, and the inverter continuous output current is 72. The tap conductor that is to be installed will be 17 ft. long. It will be located in a raceway and will supply a subpanel with a 50A main breaker.
What is the MINIMUM required ampacity of the tap conductor?

• A.  163
• B.  50A
• C.  72
• D.  400A

A technician has been called to a scale due to a low-performing array. The technician will perform tests in the
24-source circuit combiner box. After putting on the correct PPE and turning off and performing lock.tagout of the inverted and combiner disconnect. Which is the next step to safely begin electrical testing in the combiner box?

• A.  Test for current on each source circuit coming into the combiner box.
• B.  Remove any surge suppression devices from the circuits.
• C.  Test for voltage on the positive out
• D.  Open all fuse holders in the combiner box.