1|Page
LA 4-50 SOLAR ENERGY EQUIPMENT INSTALLER
EXAMINATION COMPLETE VERIFIED QUESTIONS
AND DETAILED SOLUTIONS LATEST UPDATE THIS
YEAR JUST RELEASED||NEWEST EXAM!!!
The purpose of PV array ground fault detection and
interruption is to reduce fire ___ - Answer-Hazard risk
When the output of a 120v stand alone in error is
connected to a 120/240 volt old center by paralleling the
two ungrounded conductors, the NEC requires no___ -
Answer-Multi wire branch circuits or 240v outlets shall be
connected
In an interactive system, the inverter output circuit consists
of the conductors between the inverter and the ___ -
Answer-Point of interconnection or service equipment
In a stand alone PV system, the inverter input circuit
consists of the conductors between the inverter and the
___ - Answer-Battery
,2|Page
Interactive inverters or ac modules are automatically
required to ___ when they experience loss of voltage on
the electric utility system - Answer-De energize output to
the utility system
A ___ is an ancillary feature that is often provided with
stand-alone inverters to utilize another AC energy source -
Answer-battery charger
___ is the primary factor that limits an inverter's power
rating - Answer-Temperature
A _____ are the components that are typically connected
to the input and output of stand-alone inverters - Answer-
Battery and load
The NEC defines a PV array as a mechanically integrated
assembly of modules or panels with a support structure
and foundation, tracker, and other components, as
required, to form a ______ power producing unit. -
Answer-Direct current
___ are suitable for battery connections in PV systems -
Answer-Building wire listed for hard service use
, 3|Page
Conductors used in PV source circuits should have a
minimum temp tire rating of ___ centigrade - Answer-90
degrees
____ is a type of device that prevents reverse currents in
PV array source circuits - Answer-Blocking diode
A ___ is a balance of system component where individual
PV source circuits are typically terminated - Answer-
Combiner box
Bypass diodes protect cells in photovoltaic modules from
excessive reverse ____ - Answer-Voltage
voltage
To reduce reflected sunlight and improve the adhesion of
coatings and electrical contacts, silicon wafers are
typically ______ - Answer-etched in sodium hydroxide
Photons striking a solar cell must have high enough
energy to produce the photovoltaic effect. These higher
LA 4-50 SOLAR ENERGY EQUIPMENT INSTALLER
EXAMINATION COMPLETE VERIFIED QUESTIONS
AND DETAILED SOLUTIONS LATEST UPDATE THIS
YEAR JUST RELEASED||NEWEST EXAM!!!
The purpose of PV array ground fault detection and
interruption is to reduce fire ___ - Answer-Hazard risk
When the output of a 120v stand alone in error is
connected to a 120/240 volt old center by paralleling the
two ungrounded conductors, the NEC requires no___ -
Answer-Multi wire branch circuits or 240v outlets shall be
connected
In an interactive system, the inverter output circuit consists
of the conductors between the inverter and the ___ -
Answer-Point of interconnection or service equipment
In a stand alone PV system, the inverter input circuit
consists of the conductors between the inverter and the
___ - Answer-Battery
,2|Page
Interactive inverters or ac modules are automatically
required to ___ when they experience loss of voltage on
the electric utility system - Answer-De energize output to
the utility system
A ___ is an ancillary feature that is often provided with
stand-alone inverters to utilize another AC energy source -
Answer-battery charger
___ is the primary factor that limits an inverter's power
rating - Answer-Temperature
A _____ are the components that are typically connected
to the input and output of stand-alone inverters - Answer-
Battery and load
The NEC defines a PV array as a mechanically integrated
assembly of modules or panels with a support structure
and foundation, tracker, and other components, as
required, to form a ______ power producing unit. -
Answer-Direct current
___ are suitable for battery connections in PV systems -
Answer-Building wire listed for hard service use
, 3|Page
Conductors used in PV source circuits should have a
minimum temp tire rating of ___ centigrade - Answer-90
degrees
____ is a type of device that prevents reverse currents in
PV array source circuits - Answer-Blocking diode
A ___ is a balance of system component where individual
PV source circuits are typically terminated - Answer-
Combiner box
Bypass diodes protect cells in photovoltaic modules from
excessive reverse ____ - Answer-Voltage
voltage
To reduce reflected sunlight and improve the adhesion of
coatings and electrical contacts, silicon wafers are
typically ______ - Answer-etched in sodium hydroxide
Photons striking a solar cell must have high enough
energy to produce the photovoltaic effect. These higher
