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APICS CTSC Exam - Topic 4 Question 55 Discussion

What is an acceptable quality level (AQL) in the context of sampling inspection?
D) The limit of defective units acceptable in a continuing series of lots
A) The average quality level of a satisfactory process
B) The minimum allowable number of defects in a sample
C) The minimum acceptable level of product quality

APICS CTSC Exam - Topic 4 Question 55 Discussion

Actual exam question for APICS's CTSC exam
Question #: 55
Topic #: 4
[All CTSC Questions]

What is an acceptable quality level (AQL) in the context of sampling inspection?

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Suggested Answer: D

an acceptable quality level (AQL) is defined in ISO 2859-1 as the ''quality level that is the worst tolerable''1. This means that the AQL is the limit of defective units that can be accepted in a continuing series of lots during random sampling quality inspections1. The AQL is usually expressed as a percentage or ratio of the number of defects compared to the total quantity1. The AQL helps to induce the supplier to maintain a process average at least as good as the specified limit, while providing an upper limit for the risk to the consumer of accepting the occasional poor lot1.

1: Acceptable Quality Level (AQL): Definition and How It Works - Investopedia


by Chu at Jul 16, 2026, 05:55 AM

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Carlton
3 days ago
I agree with D too. It defines limits for quality.
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Selma
8 days ago
I think it's D. It makes sense for ongoing production.
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Dorsey
13 days ago
Totally agree with D! It’s crucial for quality control.
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Flo
18 days ago
Wait, isn't AQL just a fancy term for tolerating defects?
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Sean
23 days ago
Definitely option D! It's about limits in ongoing production.
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Oneida
28 days ago
I think it's more about the average quality of a process, right?
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Therese
1 month ago
AQL is all about the acceptable level of defects in a batch.
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Chaya
1 month ago
I’m a bit lost on this one. I thought AQL was about the average quality level, but that doesn't seem to fit any of the answers perfectly.
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Novella
1 month ago
I practiced a similar question where AQL was defined as the maximum number of defective items allowed, so I’m leaning towards option D as well.
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Leontine
2 months ago
I remember discussing AQL in class, and I think it might be related to option D, but I could be mixing it up with something else.
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Lilli
2 months ago
I think AQL refers to the acceptable level of defects in a batch, but I'm not entirely sure which option that would be.
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