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ASQ (American Society for Quality) Certified Quality Inspector (CQI) · 2025 Body of Knowledge

Measure it. Record it. Defend the number.

A full academy for the CQI (Certified Quality Inspector) exam — shop math through GD&T (geometric dimensioning and tolerancing), sampling, and control charts. Written the way inspectors talk on the floor, not the way a handbook indexes it.

110
CBT (computer-based test) questions · 100 scored
4h 18m
Open-book exam time
~60%
Recent published pass rate
Lifetime
No recertification

Curriculum

00Inspection foundationsProduct, process, detection vs. prevention.ITechnical mathematics19 items. Shop math, trig, conversions, stats.IIMetrology26 items. Gages, 10:1, calibration, MSA (measurement system analysis).IIIInspection and test32 items. GD&T (geometric dimensioning and tolerancing), sampling, NDT (nondestructive testing), hardness.IVQuality assurance23 items. Audits, SPC (statistical process control), CAPA (corrective and preventive action), 5S/6S.EXTimed mock examForm A, Form B, or a full 100. Grade with a weak-topic report.

How to study

  1. 1Confirm eligibility, fees, and what open-book actually allows.
  2. 2Pack the night before: ID, bound books, allowed calculator.
  3. 3Start at math if the rust is real. Skip to metrology if you already inspect.
  4. 4Work bonus, Cpk, sine-bar, and 10:1 until the number is boring.
  5. 5Drill the section you just read. Misses become flashcards.
  6. 6Sit Form A, then Form B, then the 100-item before you pay for the window.

The Certified Quality Inspector is an inspector who, in support of and under the direction of quality engineers, supervisors, or technicians, can use the proven techniques included in the body of knowledge. Under professional direction, the quality inspector evaluates hardware documentation, performs laboratory procedures, inspects products, measures process performance, records data and prepares formal reports.

ASQ (American Society for Quality) role statement

What to buy

Tools the notes already name

These are the same references the certificate chapter tells you to carry. This academy does not run display ads on drills, the mock, or flashcards. Links go to the publisher or a plain product search. They are not an ASQ (American Society for Quality) endorsement.

Not an ASQ endorsement. Confirm current fees and calculator rules on the official pages before you buy or apply. Figures on this site are as of 16 September 2026.

Independent study resource. Not affiliated with, endorsed by, or sponsored by ASQ (American Society for Quality). Not an ASQ publication. Confirm fees, windows, and candidate rules on asq.org/cert/quality-inspector before you apply. Legal notice.