최신 PVIP 무료덤프 - NABCEP PV Installation Professional (PVIP) Board Certification

문제1

A PV module has a NOCT of 47°C. At 1000 W/m² and 35°C ambient, what is the cell temperature?

A. 47°C

B. 63°C

C. 59°C

D. 55°C

정답: C

문제2

A PV array's tilt is 15° at a latitude of 35°N. What is the annual energy loss compared to optimal tilt?

A. 1-2%

B. 6-8%

C. 3-5%

D. 10-12%

정답: C

문제3

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

A. 600 V

B. Temperature-corrected V

C. Source circuit V

D. Non-temperature-corrected V

정답: B

문제4

A PV system is installed in a location with an average annual ambient temperature of 30°C. If the module's NOCT (Nominal Operating Cell Temperature) is 45°C, what is the expected cell temperature under standard operating conditions (800 W/m² irradiance)?

A. 45°C

B. 60°C

C. 50°C

D. 55°C

정답: D

문제5

A PV system is located at 41 N latitude. The sun angle is 23 on December 21 at solar noon. Assuming that the
65 ft tree is directly south of the PV array and will grow 20 ft. over the life of the PV system, what is the MNIMUM distance the tree to the button of the prevent shading?

A. 153 ft.

B. 98 ft.

C. 167 ft.

D. 201 ft.

정답: D

문제6

An installer is using ½ in lag boits to secure roof-monitoring hardware to rafters through a roof deck. Which of the following should the installer predrill?

A. A 5/16 in pilot hole through the roof into the rafter

B. A pilot hole one-half the length of the bolt

C. A pilot hole one-fourth the length of the bolt

D. A 1/8 in, pilot hole through the roof into the rafter

정답: A

문제7

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

A. A journeyman with PV experience

B. Only a NABCEP-certified installer

C. A licensed electrician or supervised trainee

D. Anyone with basic electrical knowledge

정답: C

문제8

Which of the following MUST be referenced for determining a site's design wind speed?

A. The jurisdiction's local building code in effect

B. The module manufacture's design wind speed

C. The ASHRAE Handbook_fundamentals in effect

D. The NEC version in effect

정답: C

문제9

When installing a ground-mounted PV array, which of the following grounding methods complies with NEC Article 690 requirements for equipment grounding?

A. Connecting the module frames to the racking with bare copper wire only

B. Bonding all metal parts to the equipment grounding conductor tied to the main service ground

C. Installing a ground-fault circuit interrupter (GFCI) on the DC side of the system

D. Using a grounding electrode conductor connected to a separate ground rod for each array

정답: B

문제10

A PV module shows burn marks near the junction box. What is the most likely cause?

A. Ground fault

B. Lightning strike

C. Overcurrent condition

D. Loose connection

정답: D

최신 PVIP 무료덤프 - NABCEP PV Installation Professional (PVIP) Board Certification

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