[2025年05月] ベストな問題集を使おう NABCEP Board PVIP 専門試験問題 [Q44-Q63]

[2025年05月] ベストな問題集を使おうNABCEP Board PVIP専門試験問題

100%の合格率を試そう！更新されたのはPVIP試験問題 [2025]

PVIP認証は、ソーラーPVシステムの設置に関する高度な知識と専門知識を示すために非常に価値があります。認定されたプロフェッショナルは、ソーラー産業のリーダーとして認められ、熟練した知識を持つ労働者を雇用することを望む雇用主によく求められます。さらに、ソーラーPVシステムの設置を検討している家庭や企業は、認定されたPVIPプロフェッショナルによって提供される作業の品質に自信を持つことができます。全体的に、NABCEP PVIPボード認定試験は、再生可能エネルギーの成長分野で専門知識を示し、キャリアを進めるためのチャレンジングで報酬の高い方法です。

NABCEP PVIP認定を取得することの利点は数多くあります。まず、認定を取得することで、認定された個人の信頼性と市場価値が向上します。認定は、その個人の業界における専門知識と能力を証明するスタンプとなります。さらに、多くの雇用主は認定された専門家を雇用することを好むため、数多くの就職機会やキャリアアップの選択肢を提供します。最後に、認定は市場において競争優位性を持ち、より高い収入とより大きなキャリア成長の機会につながることがあります。

NABCEP PVIP（PVインストールプロフェッショナル）ボード認定試験は、太陽光発電（PV）システムを設置する個人の知識、スキル、および能力を評価するために設計された厳格で包括的な試験です。NABCEP（North American Board of Certified Energy Practitioners）は、再生可能エネルギーの利用を促進し、エネルギープラクティショナーのプロフェッショナルスタンダードを確立することを目的とした非営利団体です。PVIP認定は、ソーラー産業において最も高い評価を受ける資格の1つであり、試験に合格することはどのソーラープロフェッショナルにとっても重要な達成です。

質問 # 44
A homeowner is concerned that a 6kWdc PV system might be experiencing a performance issue. The homeowner has noticed what appears to be declining production. The installer analyzes the following data acquisition system (DAS) results for each year since the installation:

Given the data, which is the MOST likely conclusion to draw?

A. There is a problem with the DAS because the peak sun hours do not correlate with production values and the das should be repaired.
B. The system has experienced above-average degradation and a module warranty claim should be explored.
C. There is an intermittent inverter failure that is causing production to be lower than expected and the inverter should be repaired.
D. A combination of normal module degradation combined with cloudy weather has caused lower output in the past few years.

正解：D

質問 # 45
A PV system uses 10 AWG USE-2 wire for a 150-foot source circuit run with an Isc of 8A. The terminals are rated at 75°C. What is the ampacity of the conductor after applying NEC temperature and conduit fill adjustments at 35°C?

A. 45A
B. 30A
C. 35A
D. 40A

正解：C

質問 # 46
Which of the following voltages should be included on the dc disconnected label to indicate MAXIMUM system voltage?

A. Non-temperature-corrected V
B. 600 V
C. Temperature-corrected V
D. Source circuit V

正解：C

質問 # 47
A system's annual output decreases by 10% due to shading. The original output was 20,000 kWh. What is the new output?

A. 19,000 kWh
B. 18,000 kWh
C. 20,000 kWh
D. 16,000 kWh

正解：B

質問 # 48
Which circuits are on the utility side of a service point?

A. Service entrance conductors
B. Service lateral
C. Feeders
D. Service conductors

正解：D

質問 # 49
A PV system includes a 15 kW array with a maximum power point voltage of 450V and current of 33.33A.
The inverter efficiency is 97%, and the AC output voltage is 240V. What is the AC output current under STC?

A. 58.5A
B. 60.6A
C. 62.5A
D. 64.8A

正解：B

質問 # 50
A system's performance ratio (PR) is calculated as 0.85. If the array capacity is 10 kW and PSH is 5, what is the daily AC output?

A. 45 kWh
B. 42.5 kWh
C. 40 kWh
D. 50 kWh

正解：B

質問 # 51
Which temperature coefficient is used in the calculation to verify energy production of a PV system?

A. OptionD
B. OptionC
C. OptionA
D. OptionB

正解：C

質問 # 52
A PV array produces 10 kW at 25°C. At 50°C with a coefficient of -0.45%/°C, what is the output?

A. 9.1 kW
B. 8.9 kW
C. 9.3 kW
D. 9.5 kW

正解：B

質問 # 53
A PV system's annual energy production is 15,000 kWh. After maintenance, production increases by 5%.
What is the new annual output?

A. 16,250 kWh
B. 16,000 kWh
C. 15,750 kWh
D. 15,500 kWh

正解：C

質問 # 54
A PV connection is being made at the center of a 300 ft. long 200 feeder. See the attack diagram. The feeder originates in the upper third of the 800A main service panel (800A main breaker) with a 200A breaker and terminates in a 200A main-lug-only subpanel. The rated output of the PV system inverter is 100A.

Which are the NIMUMUM actions required to achieve an NEC-compliant installation?

A. Install a 200A breaker at the PV source connection point on the portion on the portion of the feeder toward the subpanel and move the 200A breaker to the top of the main service panel, adjust to the 800A main breaker.
B. Install a 325A at the PV source connection point on the portion of the feeder toward the subpanel, increase the capacity of this portion of the feeder to 325A, add a 200A main breaker to the subpanel, and move the 200A breaker to bottom of the main service panel, away from the 800A main breaker.
C. Install a 200A breaker at the PV source connection point on the portion of the feeder toward the subpanel, maintain the capacity of the entire feeder, and move the 200A breaker to the bottom of the main service panel, away from the 800A main breaker.
D. Install a 325A breaker at the PV source connection point on the portion of the feeder toward the subpanel. Increase the capacity of the feeder from the main panel board to 325A breaker to the bottom of the main service panel, away from the 800 main breaker.

正解：D

質問 # 55
A PV array is installed with a rapid shutdown system per NEC 690.12. The array is 15 feet from the service entrance. What is the maximum voltage allowed within the array boundary 30 seconds after shutdown initiation?

A. 120V
B. 240V
C. 30V
D. 80V

正解：C

質問 # 56
A PV system's capacity factor is 18%. The array is 10 kW, and it operates 365 days/year. What is the annual energy output?

A. 21,024 kWh
B. 18,000 kWh
C. 15,768 kWh
D. 12,264 kWh

正解：C

質問 # 57
A system's inverter efficiency drops from 97% to 94% due to aging. What is the percentage increase in energy loss?

A. 6.0%
B. 4.5%
C. 3.2%
D. 2.1%

正解：C

質問 # 58
Per NEC 690.8, a PV source circuit has an Isc of 9.5A. What is the minimum ampacity required for the conductor?

A. 14.25A
B. 9.5A
C. 15.0A
D. 11.875A

正解：D

質問 # 59
Per NEC 690.4, who is qualified to install a PV system?

A. Anyone with basic electrical knowledge
B. A licensed electrician or supervised trainee
C. A journeyman with PV experience
D. Only a NABCEP-certified installer

正解：B

質問 # 60
When commissioning a PV system, which test is most critical to verify proper operation of the array before connecting to the inverter?

A. Insulation resistance test
B. Short-circuit current test
C. Open-circuit voltage test
D. Ground-fault detection test

正解：A

質問 # 61
Which temperature coefficient is used in the calculation to verify energy production of a PV system?
A)

B)

C)

D)

A. Option
B. Option
C. Option
D. Option

正解：A

質問 # 62
A PV module has a temperature coefficient of power of -0.4%/°C and a rated power of 300W at STC (25°C).
What is the expected power output if the module temperature rises to 55°C?