NCARB PDD Exam - Topic 2 Question 3 Discussion

Actual exam question for NCARB's PDD exam

Question #: 3
Topic #: 2

Refer to the exhibit.

An architect is developing an electrical diagram to show equipment configuration and flow of electricity for a residential project. The project is integrating on-site wind generation where the utility company does not allow net metering.

Which diagram meets the project requirements?

ADiagram A

BDiagram B

CDiagram C

Show Suggested Answer

Suggested Answer: C

by Carol at Oct 06, 2025, 10:03 AM

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Alecia

4 months ago

I’m leaning towards B too. It covers all bases.

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Zoila

4 months ago

C could work if explained well, but it’s risky.

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Carylon

5 months ago

B has more detail on energy flow, which is crucial here.

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Alecia

5 months ago

Diagram A is clear, but does it really meet the wind generation needs?

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Zoila

5 months ago

I feel Diagram C might confuse the flow.

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Carylon

5 months ago

I agree, but Diagram B shows better integration with the wind generator.

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Aleshia

5 months ago

I think Diagram A looks the most straightforward.

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Miesha

5 months ago

Diagram C integrates wind generation well.

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Elsa

6 months ago

Not sure if any of these really fit the requirements.

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Vicente

6 months ago

Wait, no net metering? That's surprising!

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Jestine

6 months ago

I think Diagram A is more straightforward.

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Annamae

6 months ago

I recall that the integration of on-site generation needs to be clearly represented. I’m leaning towards Diagram A, but I’m not completely confident.

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Helene

6 months ago

I'm not entirely sure, but I think we practiced a similar question where net metering was a factor. I feel like Diagram C could be the answer.

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Heidy

6 months ago

I remember we discussed the importance of showing the flow of electricity clearly in our diagrams. I think Diagram B might be the right choice.

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Wava

7 months ago

Diagram B shows the best flow for on-site generation.

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Bettina

7 months ago

Diagram C? Really? That's about as exciting as watching paint dry. Diagram B is where the action's at!

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Arthur

7 months ago

I think we had a case study about wind generation setups. If I remember correctly, the diagram should emphasize the connection to the grid, which makes me think Diagram B is correct.

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Aleshia

7 months ago

Good point, but I still prefer A for simplicity.

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Troy

8 months ago

Diagram B is the clear winner. Keeping the utility company satisfied is key, especially when they're being so picky about net metering.

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Elmer

8 months ago

Diagram A is the way to go. Who needs the utility company's approval anyway? Live off the grid, that's my motto!

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Glenn

8 months ago

Diagram C seems the most straightforward. Why complicate things when you don't have to?

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Vivan

8 months ago

Diagram B looks like the way to go. Gotta keep that utility company happy, am I right?

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Coral

9 months ago

I've got a good feeling about this one. The diagrams seem straightforward, and the requirements are clear. I'll carefully evaluate each option and select the most appropriate solution.

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Dominga

9 months ago

Based on the project requirements, I think Diagram B might be the best fit since it doesn't involve net metering. But I'll double-check the other options just to be sure.

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Charlene

9 months ago

I'm a bit confused by the different configurations. I'll need to review the details of each diagram and make sure I understand how they handle the on-site wind generation.

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