FREE NABCEP PV Design Specialist Questions and Answers

Question 1

What is the primary consideration when selecting the orientation of PV modules in the Northern Hemisphere?

Accepted Answer

South

Answer

East

Answer

West

Answer

North

Question 2

Which factor is most important when determining the tilt angle for PV modules in a fixed-tilt system?

Accepted Answer

Latitude of the installation site

Answer

Roof color

Answer

Module manufacturer

Answer

Wind speed in the area

Question 3

What is the purpose of a shading analysis during the design phase of a PV system?

Accepted Answer

To identify potential obstructions that could reduce system performance

Answer

To assess the thermal properties of the PV modules

Answer

To determine the optimal orientation of the system

Answer

To estimate the cost of the PV system

Question 4

When designing a PV system, why is it important to consider the azimuth angle?

Accepted Answer

It influences the amount of solar radiation the modules will receive

Answer

It determines the length of the solar array

Answer

It affects the system's exposure to wind

Answer

It impacts the thermal management of the system

Question 5

How does temperature affect the performance of PV modules?

Accepted Answer

Higher temperatures decrease module efficiency

Answer

Higher temperatures increase module efficiency

Answer

Temperature has no effect on module efficiency

Answer

Temperature only affects the physical structure of the modules

Question 6

n PV system design, what is the significance of the system's "derate factor"?

Accepted Answer

It estimates the loss in system performance due to inefficiencies

Answer

It calculates the total cost of the system

Answer

It measures the aesthetic appeal of the installation

Answer

It determines the lifespan of the PV modules

Question 7

Why is it important to consider local building codes and regulations when designing a PV system?

Accepted Answer

To avoid penalties and ensure the safety and compliance of the installation

Answer

To ensure the system is aesthetically pleasing

Answer

To increase the cost of the system

Answer

To reduce the number of PV modules needed