CIDQ IDPX Exam - Topic 5 Question 15 Discussion

Actual exam question for CIDQ's IDPX exam

Question #: 15
Topic #: 5

[All IDPX Questions]

What is the MINIMUM illumination level at the walking surface for a means of egress?

A1 footcandle [10.76 lux]

B2 footcandles [21.53 lux]

C5 footcandles [53.82 lux]

D9 footcandles [96.88 lux]

Show Suggested Answer

Suggested Answer: A

by Stephen at Jan 05, 2026, 05:16 AM

Limited Time Offer

25%

Off

Get Premium IDPX Questions as Interactive Web-Based Practice Test or PDF

Contribute your Thoughts:

Submit Cancel

Rory

3 days ago

Ah, this one's tricky. I'm going to go with A) 1 footcandle [10.76 lux] just to be safe.

upvoted 0 times

...

Jesusita

8 days ago

Hmm, I'm not sure. I'm leaning towards C) 5 footcandles [53.82 lux].

upvoted 0 times

...

Gail

13 days ago

I think the answer is B) 2 footcandles [21.53 lux].

upvoted 0 times

...

Alishia

18 days ago

I’m pretty confident it’s 1 footcandle, but I also recall something about higher levels for specific areas.

upvoted 0 times

...

Dana

23 days ago

I feel like the answer might be 5 footcandles, but I could be mixing it up with another standard.

upvoted 0 times

...

Ricarda

29 days ago

I remember practicing a question about egress lighting, and I think it was 2 footcandles.

upvoted 0 times

...

Olive

1 month ago

I think the minimum illumination level is 1 footcandle, but I’m not entirely sure.

upvoted 0 times

...

Wade

1 month ago

Hmm, I'm not sure about the exact number, but I know it's important to have adequate lighting for safe evacuation. I'll try to reason through the options and see if I can eliminate any of them.

upvoted 0 times

...

Claudia

1 month ago

Wait, I'm a little confused. Is it 1 footcandle or 2 footcandles? I remember it being a specific number, but I can't recall which one. I'll have to think this through step-by-step.

upvoted 0 times

...

Skye

2 months ago

Ah, I've got this one! The minimum illumination level for a means of egress is 1 footcandle, or 10.76 lux. I'm confident that's the correct answer.

upvoted 0 times

...

Sherell

2 months ago

Okay, I know this is an important safety requirement, so I need to make sure I get this right. Let me review the options and see if I can eliminate any of them.

upvoted 0 times

...

Alonso

2 months ago

Hmm, I think I remember learning about minimum illumination levels for means of egress, but I'm not totally sure. I'll have to think this through carefully.

upvoted 0 times

...