NFPA CFPS Exam - Topic 8 Question 17 Discussion

Actual exam question for NFPA's CFPS exam

Question #: 17
Topic #: 8

[All CFPS Questions]

Fire alarm systems utilize what three (3) basic types of circuits?

AIDC, SLC, and NAC

BClass A, B. and C

CLEL, HEL, and MEL

DIDP, SIP, and NAP

Show Suggested Answer

Suggested Answer: A

by Dottie at Nov 22, 2025, 10:14 PM

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Ruthann

9 hours ago

Those are the circuits used in fire alarms, no doubt!

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Vallie

6 days ago

Wait, are you sure about IDC and SLC?

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Providencia

11 days ago

Totally agree with A, that's standard!

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Paris

16 days ago

I'm just glad the answer isn't "pull the fire alarm and run for the exits." That would be a bit too obvious, don't you think?

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Kallie

21 days ago

C) LEL, HEL, and MEL? What kind of acronyms are those? Definitely not the right answer.

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Viva

26 days ago

D) IDP, SIP, and NAP? Really? That sounds like something out of a sci-fi movie, not a fire alarm system.

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Kaycee

1 month ago

I thought it was B) Class A, B, and C. Guess I need to brush up on my fire alarm system knowledge.

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Aliza

1 month ago

A) IDC, SLC, and NAC is the correct answer. These are the three basic types of circuits used in fire alarm systems.

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Tiara

1 month ago

I don’t think it’s D; those acronyms don’t sound familiar at all. I remember IDC and NAC being important, though.

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Han

2 months ago

I’m leaning towards A as well, but I keep mixing up the definitions of IDC and SLC. I hope I get it right!

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Andra

2 months ago

I think the answer might be A) IDC, SLC, and NAC, but I’m not completely sure. I remember studying those terms in class.

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Antione

2 months ago

Wait, what were those other options again? I'm getting a little confused between the different circuit types. I better re-read the question closely.

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Ty

2 months ago

I thought it was Class A, B, and C?

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Carlee

2 months ago

A) IDC, SLC, and NAC are the right ones!

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Florinda

2 months ago

Okay, let me see... I remember learning about Class A, B, and C circuits, so I'm going to go with B for this one.

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Kallie

3 months ago

This seems straightforward enough. I'll just focus on recalling the key circuit types we covered in class and match them to the options provided.

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Magdalene

3 months ago

I feel like I’ve seen something similar in practice questions before, but I can’t recall the exact types. Was it Class A, B, and C?

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Simona

3 months ago

Hmm, I'm not totally sure about this one. I'll have to think it through carefully and review my notes on fire alarm system components.

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Bobbye

3 months ago

I think I know this one - it's A, IDC, SLC, and NAC. Those are the three main circuit types in fire alarm systems.

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