PVCMS NABCEP PV
Commissioning &
Maintenance Specialist
Exam
,PVCMS NABCEP PV Commissioning & Maintenance Specialist Exam
Question 1
Two issues are being considered together: Validate inverter configuration, MPPT settings,
grid-interconnection parameters, and control firmware versions and Perform safe system
energization, startup sequences, and shutdown procedures following manufacturer guidelines
and safety protocols. Which topic is their closest common focus?
A. Verify System Operation (10%)
B. Orient End User to System (8%)
C. Conduct Electrical Tests (15%)
D. Conduct Mechanical Tests (8%)
Correct Answer: A
Full Explanation: Both concerns belong to Verify System Operation (10%): Validate inverter
configuration, MPPT settings, grid-interconnection parameters, and control firmware versions, and
Perform safe system energization, startup sequences, and shutdown procedures following
manufacturer guidelines and safety protocols. This topic therefore accounts for both parts of the
question; choosing a neighboring topic would not preserve that shared focus.
Questions and Explanations 2
,PVCMS NABCEP PV Commissioning & Maintenance Specialist Exam
Question 2
Which ordered set of topics best matches the following discussion points?
1. Review routine maintenance schedules, safety warnings, emergency response steps, and
warranty claim procedures with the client
2. Document maintenance interventions, root-cause analyses, parts replacements, and system
performance recovery metrics within maintenance logs
3. Inspect, test, and service battery banks, ventilation assets, and surge protection devices
(SPDs) on a periodic schedule
4. Measure open-circuit voltage (Voc) and short-circuit current (Isc) for string arrays and
compare values against expected baseline calculations
A. 1: Perform Preventative Maintenance (10%); 2: Conduct Electrical Tests (15%); 3: Orient End
User to System (8%); 4: Perform Corrective Maintenance (10%)
B. 1: Perform Corrective Maintenance (10%); 2: Conduct Electrical Tests (15%); 3: Perform
Preventative Maintenance (10%); 4: Orient End User to System (8%)
C. 1: Conduct Electrical Tests (15%); 2: Perform Corrective Maintenance (10%); 3: Perform
Preventative Maintenance (10%); 4: Orient End User to System (8%)
D. 1: Orient End User to System (8%); 2: Perform Corrective Maintenance (10%); 3: Perform
Preventative Maintenance (10%); 4: Conduct Electrical Tests (15%)
Correct Answer: D
Full Explanation: The correct associations are 1 with Orient End User to System (8%) (Review
routine maintenance schedules, safety warnings, emergency response steps, and warranty claim
procedures with the client); 2 with Perform Corrective Maintenance (10%) (Document
maintenance interventions, root-cause analyses, parts replacements, and system performance
recovery metrics within maintenance logs); 3 with Perform Preventative Maintenance (10%)
(Inspect, test, and service battery banks, ventilation assets, and surge protection devices (SPDs)
on a periodic schedule); 4 with Conduct Electrical Tests (15%) (Measure open-circuit voltage (Voc)
and short-circuit current (Isc) for string arrays and compare values against expected baseline
calculations). Exchanging these topics changes the subject of one or more concerns rather than
preserving their distinct meanings.
Questions and Explanations 3
, PVCMS NABCEP PV Commissioning & Maintenance Specialist Exam
Question 3
Several different issues need to be distinguished. Which answer identifies their topics in the
order shown?
1. Perform insulation resistance testing (megohm testing) on DC source circuits and feeder
wiring
2. Inspect balance-of-system (BOS) components, including combiner boxes, junction boxes,
raceways, conduits, and cable management
3. Conduct string polarity checks, continuity testing, and low-resistance measurements on
grounding paths
A. 1: Conduct Electrical Tests (15%); 2: Complete Visual and Mechanical Inspection (12%); 3:
Conduct Electrical Tests (15%)
B. 1: Complete Visual and Mechanical Inspection (12%); 2: Conduct Electrical Tests (15%); 3:
Complete Visual and Mechanical Inspection (12%)
C. 1: Conduct Electrical Tests (15%); 2: Complete Visual and Mechanical Inspection (12%); 3:
Complete Visual and Mechanical Inspection (12%)
D. 1: Complete Visual and Mechanical Inspection (12%); 2: Complete Visual and Mechanical
Inspection (12%); 3: Complete Visual and Mechanical Inspection (12%)
Correct Answer: A
Full Explanation: The correct associations are 1 with Conduct Electrical Tests (15%) (Perform
insulation resistance testing (megohm testing) on DC source circuits and feeder wiring); 2 with
Complete Visual and Mechanical Inspection (12%) (Inspect balance-of-system (BOS) components,
including combiner boxes, junction boxes, raceways, conduits, and cable management); 3 with
Conduct Electrical Tests (15%) (Conduct string polarity checks, continuity testing, and
low-resistance measurements on grounding paths). Exchanging these topics changes the subject
of one or more concerns rather than preserving their distinct meanings.
Questions and Explanations 4
Commissioning &
Maintenance Specialist
Exam
,PVCMS NABCEP PV Commissioning & Maintenance Specialist Exam
Question 1
Two issues are being considered together: Validate inverter configuration, MPPT settings,
grid-interconnection parameters, and control firmware versions and Perform safe system
energization, startup sequences, and shutdown procedures following manufacturer guidelines
and safety protocols. Which topic is their closest common focus?
A. Verify System Operation (10%)
B. Orient End User to System (8%)
C. Conduct Electrical Tests (15%)
D. Conduct Mechanical Tests (8%)
Correct Answer: A
Full Explanation: Both concerns belong to Verify System Operation (10%): Validate inverter
configuration, MPPT settings, grid-interconnection parameters, and control firmware versions, and
Perform safe system energization, startup sequences, and shutdown procedures following
manufacturer guidelines and safety protocols. This topic therefore accounts for both parts of the
question; choosing a neighboring topic would not preserve that shared focus.
Questions and Explanations 2
,PVCMS NABCEP PV Commissioning & Maintenance Specialist Exam
Question 2
Which ordered set of topics best matches the following discussion points?
1. Review routine maintenance schedules, safety warnings, emergency response steps, and
warranty claim procedures with the client
2. Document maintenance interventions, root-cause analyses, parts replacements, and system
performance recovery metrics within maintenance logs
3. Inspect, test, and service battery banks, ventilation assets, and surge protection devices
(SPDs) on a periodic schedule
4. Measure open-circuit voltage (Voc) and short-circuit current (Isc) for string arrays and
compare values against expected baseline calculations
A. 1: Perform Preventative Maintenance (10%); 2: Conduct Electrical Tests (15%); 3: Orient End
User to System (8%); 4: Perform Corrective Maintenance (10%)
B. 1: Perform Corrective Maintenance (10%); 2: Conduct Electrical Tests (15%); 3: Perform
Preventative Maintenance (10%); 4: Orient End User to System (8%)
C. 1: Conduct Electrical Tests (15%); 2: Perform Corrective Maintenance (10%); 3: Perform
Preventative Maintenance (10%); 4: Orient End User to System (8%)
D. 1: Orient End User to System (8%); 2: Perform Corrective Maintenance (10%); 3: Perform
Preventative Maintenance (10%); 4: Conduct Electrical Tests (15%)
Correct Answer: D
Full Explanation: The correct associations are 1 with Orient End User to System (8%) (Review
routine maintenance schedules, safety warnings, emergency response steps, and warranty claim
procedures with the client); 2 with Perform Corrective Maintenance (10%) (Document
maintenance interventions, root-cause analyses, parts replacements, and system performance
recovery metrics within maintenance logs); 3 with Perform Preventative Maintenance (10%)
(Inspect, test, and service battery banks, ventilation assets, and surge protection devices (SPDs)
on a periodic schedule); 4 with Conduct Electrical Tests (15%) (Measure open-circuit voltage (Voc)
and short-circuit current (Isc) for string arrays and compare values against expected baseline
calculations). Exchanging these topics changes the subject of one or more concerns rather than
preserving their distinct meanings.
Questions and Explanations 3
, PVCMS NABCEP PV Commissioning & Maintenance Specialist Exam
Question 3
Several different issues need to be distinguished. Which answer identifies their topics in the
order shown?
1. Perform insulation resistance testing (megohm testing) on DC source circuits and feeder
wiring
2. Inspect balance-of-system (BOS) components, including combiner boxes, junction boxes,
raceways, conduits, and cable management
3. Conduct string polarity checks, continuity testing, and low-resistance measurements on
grounding paths
A. 1: Conduct Electrical Tests (15%); 2: Complete Visual and Mechanical Inspection (12%); 3:
Conduct Electrical Tests (15%)
B. 1: Complete Visual and Mechanical Inspection (12%); 2: Conduct Electrical Tests (15%); 3:
Complete Visual and Mechanical Inspection (12%)
C. 1: Conduct Electrical Tests (15%); 2: Complete Visual and Mechanical Inspection (12%); 3:
Complete Visual and Mechanical Inspection (12%)
D. 1: Complete Visual and Mechanical Inspection (12%); 2: Complete Visual and Mechanical
Inspection (12%); 3: Complete Visual and Mechanical Inspection (12%)
Correct Answer: A
Full Explanation: The correct associations are 1 with Conduct Electrical Tests (15%) (Perform
insulation resistance testing (megohm testing) on DC source circuits and feeder wiring); 2 with
Complete Visual and Mechanical Inspection (12%) (Inspect balance-of-system (BOS) components,
including combiner boxes, junction boxes, raceways, conduits, and cable management); 3 with
Conduct Electrical Tests (15%) (Conduct string polarity checks, continuity testing, and
low-resistance measurements on grounding paths). Exchanging these topics changes the subject
of one or more concerns rather than preserving their distinct meanings.
Questions and Explanations 4
