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100
True or False: The Photovoltaic system voltage is the direct-current voltage of any pv source or pv output circuit.
TRUE
100
A(n)______ is a device that by which the conductors of a circuit can be disconnected from their source of supply.
Disconnecting Means
100
If a disconnects enclosure is rated NEMA 3 it will protect against all of the following EXCEPT. a.rain b.incidental contact c.wind blow d.corrosive agents (HINT: Article 110).
Corrosive Agents
100
A ________ system is comprised of multiple power sources. These power sources may include PV, wind, micro-hydro generators, etc.
Hybrid
100
Inverters track an array's maximum power point on a(n)_____ curve.
IV
200
If a PV source circuit is routed through an attic it must be at least_____ inches under the roof decking.
10
200
If an inverter is not in a readily accessible location, it must have all of the following EXCEPT. a. a readily accessible DC disconnect. b.an AC disconnect within sight c.a DC disconnect within sight d.a readily accessible AC disconnect.
A readily accessible DC disconnect.
200
The purpose of an inverter is to_______
convert dc at one voltage to ac at the same or another voltage.
200
A PV system that operates in parallel with and may deliver power to an electrical production a distribution network is called a(n) _______________.
Interactive System
200
Which is not true of a bi-polar system? a.they are ungrounded systems b.they consist of two monopole sub-arrays. c.they cannot be building integrated d.they are grounded systems
They are ungrounded systems
300
Which of the following devices does the NEC require to be a part of PV systems mounted on residential dwellings? a. A stand-off mount for the PV modules b.A utility interconnection. c. A ground-fault protection device d. An accessible source circuit combiner box
Ground Fault protection device
300
Within sight means visible and not more than____ feet in distance from the inverter.
50
300
The width of the working space in front of an inverter that is 24 inches wide, must be at least_____inches.
30 inches.
300
Bonded can be described as _______ to establish continuity and conductivity.
Connected
300
The maximum number of disconnects allowed to disconnect a PV system is___
6
400
The installer is required to placed a label on the DC disconnect with all of the following EXCEPT. a.max system voltage b.max power-point voltage c.short circuit current d.short circuit voltage
Short circuit voltage
400
True or False: A fuse labeled 600VAC is suitable for use on a PV source circuit.
False.
400
The purpose of the ground-fault protection device in a PV system is to a.reduce the probability of electrical shock to service personnel. b.reduce the possibility of fire from an arching fault to ground. c.reduce losses of the PV output energy to ground. d.reduce degradation of structural supports from electrolysis.
reduce the possibility of fire from an arching fault to ground.
400
The word "earth" best describes_____ in an electrical system.
Ground
400
Ground fault protection for an inverter must do all of the following EXCEPT a. Interrupt the flow of current b.prevent the fault c.indicate the fault d.detect the fault
Prevent the fault
500
True or False: An inverter DC disconnect may be located in a bathroom.
False
500
A current carrying conductor that is intentionally grounded is called a(n)_____
Grounded Conductor.
500
The minimum depth of the working spacd in front of a charge controller for which the input voltage never exceeds 50 VDC is_____
Negotiable with AHJ approval.
500
A _____ prevents a battery bank from back-feeding PV modules.
blocking diode.
500
True or False: A pole-mounted array with two parallel source circuits is required to have ground fault protection.
False
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