1|Page
CNMI Solar PV Installer Advanced Certification Exam
Practice Questions And Correct Answers||Verified
Exam!!|| (Verified Answers) Plus Rationales 2026/2027
Q&A | Instant Download Pdf
Which is the best way to determine the state of charge of
a typical flooded lead acid battery? - Answer-Hydrometer
testing
Which of the following is true regarding a grid-tied battery
backup system? - Answer-It provides power when there is
a grid outage
Wiring solar panel in series___. - Answer-Does not affect
the amperage but increases the voltage
The peak sun hours for a site receiving 1,000 W/m2 for
two hours and 600 W/m2 for 5 hours is___. - Answer-5
hours
A 80 Ah battery from which 32 Ah have been withdrawn
has undergone a DOD of ____. - Answer-40 percent
,2|Page
For maximum power out in winter in the northern
hemisphere, the tilt angle should equal____. - Answer-
Local latitude +15 degrees
What is the maximum possible system voltage for a PV
system that has 5 modules in series, Voc of 30V, with a
voltage correction factor of 1.10. - Answer-165
Which of the following is continually monitored by an
automatic transfer switch? - Answer-Primary power source
What is the minimum working clearance around the
inverter? - Answer-36 in. directly in front, 30 in. side to
side, and 80 in. of height
What is a standalone PV system considered under NEC
labeling requirements? - Answer-Power source
What is the OSHA - regulated MAXIMUM distance to an
eyewash station when working on flooded lead-acid
batteries? - Answer-25 ft
,3|Page
The temperature rating of the insulation of a conductor
when designing a PV system effects the____. - Answer-
ability of the wire to carry current
Which is the best and safest way to determine current in a
PV output circuit? - Answer-Clamp on ammeter
A remote cabin uses the loads below per day, 1000W
toaster for 6 minutes, 1.2 kw hot water heating element for
3 hours, 3 17W LED lights for 3 hours per day, phone
charger at 20W for 3 hours per day, how much total
energy is used per day? - Answer-3.9 kWh
The inverter went over voltage in Kalamazoo one cold
winter. The warranty was voided and the installer was
responsible for buying the new inverter. The maximum
input voltage of the inverter was 1000V. The PV module
specifications at STC were: power = 245W, Vmp = 30.1V,
Imp = 8.2A, Voc = 37.7V, Isc = 8.7A. The temperature
coefficient for the panel was -0.121. There were 24
modules per PV source circuit. How cold did it get when
the inverter got to be 1000V dc? - Answer--8C
Which type of PV system can dissimilar PV module types
be used with little or no system loss? - Answer-A system
, 4|Page
that uses Ac PV modules that are coupled only to the Ac
system
Which of the following is MOST often overlooked when
analyzing the lifecycle costs of a PV system? - Answer-
Interest rates on financing loans
What is the largest array size if you are using a 24V
battery bank and 20A charge controller? - Answer-280W
What is the MAXIMUM number of modules in series given
that Voc = 44V, Vmp = 38V, cold temperature = -22,
Temperature coefficient Voc = -0.3%/C, Inverter Maximum
input voltage = 550V? - Answer-10
Local authorities often supplement the NEC with special
requirements called - Answer-building ordinances
Article ________ of the NEC covers the specific
requirements unique to PV systems and installations. -
Answer-690
CNMI Solar PV Installer Advanced Certification Exam
Practice Questions And Correct Answers||Verified
Exam!!|| (Verified Answers) Plus Rationales 2026/2027
Q&A | Instant Download Pdf
Which is the best way to determine the state of charge of
a typical flooded lead acid battery? - Answer-Hydrometer
testing
Which of the following is true regarding a grid-tied battery
backup system? - Answer-It provides power when there is
a grid outage
Wiring solar panel in series___. - Answer-Does not affect
the amperage but increases the voltage
The peak sun hours for a site receiving 1,000 W/m2 for
two hours and 600 W/m2 for 5 hours is___. - Answer-5
hours
A 80 Ah battery from which 32 Ah have been withdrawn
has undergone a DOD of ____. - Answer-40 percent
,2|Page
For maximum power out in winter in the northern
hemisphere, the tilt angle should equal____. - Answer-
Local latitude +15 degrees
What is the maximum possible system voltage for a PV
system that has 5 modules in series, Voc of 30V, with a
voltage correction factor of 1.10. - Answer-165
Which of the following is continually monitored by an
automatic transfer switch? - Answer-Primary power source
What is the minimum working clearance around the
inverter? - Answer-36 in. directly in front, 30 in. side to
side, and 80 in. of height
What is a standalone PV system considered under NEC
labeling requirements? - Answer-Power source
What is the OSHA - regulated MAXIMUM distance to an
eyewash station when working on flooded lead-acid
batteries? - Answer-25 ft
,3|Page
The temperature rating of the insulation of a conductor
when designing a PV system effects the____. - Answer-
ability of the wire to carry current
Which is the best and safest way to determine current in a
PV output circuit? - Answer-Clamp on ammeter
A remote cabin uses the loads below per day, 1000W
toaster for 6 minutes, 1.2 kw hot water heating element for
3 hours, 3 17W LED lights for 3 hours per day, phone
charger at 20W for 3 hours per day, how much total
energy is used per day? - Answer-3.9 kWh
The inverter went over voltage in Kalamazoo one cold
winter. The warranty was voided and the installer was
responsible for buying the new inverter. The maximum
input voltage of the inverter was 1000V. The PV module
specifications at STC were: power = 245W, Vmp = 30.1V,
Imp = 8.2A, Voc = 37.7V, Isc = 8.7A. The temperature
coefficient for the panel was -0.121. There were 24
modules per PV source circuit. How cold did it get when
the inverter got to be 1000V dc? - Answer--8C
Which type of PV system can dissimilar PV module types
be used with little or no system loss? - Answer-A system
, 4|Page
that uses Ac PV modules that are coupled only to the Ac
system
Which of the following is MOST often overlooked when
analyzing the lifecycle costs of a PV system? - Answer-
Interest rates on financing loans
What is the largest array size if you are using a 24V
battery bank and 20A charge controller? - Answer-280W
What is the MAXIMUM number of modules in series given
that Voc = 44V, Vmp = 38V, cold temperature = -22,
Temperature coefficient Voc = -0.3%/C, Inverter Maximum
input voltage = 550V? - Answer-10
Local authorities often supplement the NEC with special
requirements called - Answer-building ordinances
Article ________ of the NEC covers the specific
requirements unique to PV systems and installations. -
Answer-690
