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How does proper curing improve concrete durability?

It removes the need for specified cover over reinforcing steel

It supports continued hydration and reduces near-surface permeability

It increases w/cm after placement

It causes all bleed water to evaporate immediately

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2026 Statistics

Key Facts: ACI CQTM Exam

~100

Written Exam Questions

ACI CQTM program page and policy

4 hours

Written Exam Time

ACI CQTM program page and policy

~25

Practical Questions

ACI CQTM program page and policy

2 hours

Practical Exam Time

ACI CQTM program page and policy

70% / 60%

Written Passing Rule

70% overall and 60% per subsection

5 years

Certification Validity

ACI CQTM program page and policy

40 PDH

CE Recertification Route

ACI CQTM program page and policy

ACI CQTM is an advanced certification for concrete QC/QA managers and technical reviewers. ACI's official program page lists an open-book written exam of approximately 100 multiple-choice questions in 4 hours and an open-book practical application exam of approximately 25 multiple-choice questions in 2 hours. The written exam requires at least 60% on each subsection and 70% overall; the practical exam requires 70%. Full CQTM also requires prior ACI Field Testing Grade I, Strength Testing, and Flatwork written exams plus documented education/work experience. Certification is valid for 5 years, with recertification by exam or qualifying continuing education.

Sample ACI CQTM Practice Questions

Try these sample questions to test your ACI CQTM exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1According to ACI's certification definition, what best describes the role of a Concrete Quality Technical Manager?

A.A technician who only performs fresh concrete field tests under ASTM procedures

B.An individual qualified to supervise an effective concrete QC/QA program and handle technical concrete matters for the Architect/Engineer

C.A plant dispatcher responsible for scheduling ready-mix deliveries

D.A code official who approves all structural concrete designs

Explanation: ACI describes the CQTM role as supervising an effective concrete quality control/quality assurance program and performing technical duties related to concrete used in a project. The credential is broader than field testing and includes mix proportioning, specifications, documentation, and evaluation of test data.

2What is the practical difference between the ACI Associate Concrete Quality Technical Manager and full Concrete Quality Technical Manager classifications?

A.Associate certification is for candidates who pass only the practical application examination

B.Associate certification recognizes CQTM exam knowledge without the full education and experience documentation required for CQTM status

C.Associate certification is limited to precast concrete, while full CQTM applies to cast-in-place concrete

D.Associate certification requires no ACI prerequisite exams

Explanation: ACI identifies Associate CQTM as someone knowledgeable about concrete QC/QA but without the experience required for full CQTM status. The Associate can upgrade after submitting and receiving approval for sufficient education and work experience.

3In an ACI 121R-style quality management system, why is document control important?

A.It ensures that only current, approved procedures and specifications are used by the people doing the work

B.It eliminates the need for project submittals

C.It allows test results to be edited after acceptance decisions are made

D.It replaces calibration records for testing equipment

Explanation: Document control keeps quality manuals, procedures, work instructions, specifications, and forms current and traceable. Without it, a plant or project team can follow obsolete acceptance criteria or unapproved procedures.

4A project quality plan for concrete work should most directly connect which items?

A.Corporate marketing goals, bid history, and equipment depreciation

B.Required inspections, acceptance criteria, responsible parties, records, communication paths, and corrective-action procedures

C.Only the concrete producer's mix design numbers

D.Only the testing agency's laboratory accreditation certificate

Explanation: A quality plan translates the quality management system into project-specific responsibilities, acceptance criteria, inspection and testing requirements, records, communication flow, and response to nonconformance. A mix design or lab certificate may be part of the plan, but neither is the plan by itself.

5What is the main purpose of an internal audit in a concrete quality management system?

A.To assign blame to the technician who produced the most recent nonconforming result

B.To verify whether the QMS is being followed, is effective, and produces records that support compliance

C.To waive project specification requirements when production is behind schedule

D.To replace daily batch and test records with a single annual report

Explanation: Internal audits check conformance to the quality system and evaluate whether the system is effective. The useful output is documented evidence, objective findings, and corrective action where gaps or trends are found.

6Within a QMS, who is primarily responsible for establishing the quality policy and making sure resources are available to meet it?

A.Top management

B.Only the field testing technician

C.Only the concrete truck driver

D.The owner after the project is complete

Explanation: ACI 121R concepts align quality policy, objectives, resources, and management review with top management responsibility. Technicians and drivers perform important controlled work, but they do not own the overall policy and resourcing obligation.

7Why must measurement tools used in concrete QC, such as scales, meters, thermometers, and compression machines, be calibrated or verified?

A.To make test results traceable and credible against specified acceptance criteria

B.To improve concrete strength directly

C.To eliminate the need for technician certification

D.To allow the producer to ignore batching tolerances

Explanation: Calibration and verification show that measurement tools are accurate enough for the decisions made from their readings. A QMS depends on reliable measurements; otherwise, apparent compliance or noncompliance may be false.

8A ready-mix producer relies on an aggregate supplier. Under a QMS, what is the best way to manage that supplier's effect on concrete quality?

A.Accept all material as long as it arrives before the concrete batch is needed

B.Monitor supplier conformance through specifications, sampling/testing, records, communication, and action on nonconforming material

C.Require the supplier to design all concrete mixtures for the producer

D.Stop testing aggregate after the first acceptable shipment

Explanation: ACI 121R emphasizes monitoring suppliers' work product and operations. Aggregates can change gradation, moisture, absorption, and deleterious content, so the QMS needs defined requirements, sampling plans, records, and response procedures.

9In QMS terminology, what is the best description of corrective action after a concrete nonconformance?

A.Documenting the low result but taking no further action

B.Changing a process to address the cause of the nonconformance and reduce the chance it happens again

C.Deleting the nonconforming record once replacement concrete is accepted

D.Automatically blaming the cement supplier

Explanation: Corrective action addresses the cause of a nonconformance, such as batching error, moisture correction failure, improper curing, or test procedure error. The goal is to prevent recurrence, not merely document the event.

10A CQTM reviews 28-day strength data and sees that the moving average is still above f'c but has dropped steadily for the last five placements. What is the best QMS response?

A.Do nothing until a test result fails formal acceptance criteria

B.Begin trend investigation using batch records, material changes, moisture corrections, curing records, and testing variation before nonconformance occurs

C.Raise the specified strength on future tickets without notifying the design professional

D.Discard the oldest passing tests so the trend is hidden

Explanation: Data analysis in a QMS is meant to detect process drift early. A downward trend can indicate material variability, moisture-correction error, curing problems, or testing issues even before an acceptance failure is triggered.

About the ACI CQTM Exam

The ACI Concrete Quality Technical Manager certification is an advanced concrete quality management credential for professionals responsible for concrete QC/QA programs, mixture proportioning, specification compliance, durability, materials evaluation, and interpretation of concrete test data. ACI lists an approximately 100-question, 4-hour open-book written exam and an approximately 25-question, 2-hour open-book practical application exam. Full CQTM status also requires prior ACI written exams and documented education/work experience; Associate CQTM is available for candidates who pass the CQTM exams but do not yet meet the full experience requirement.

Assessment

Open-book written exam with approximately 100 multiple-choice questions in six subsections, plus an open-book practical application exam with approximately 25 multiple-choice questions involving ACI 318, ACI 301, and ACI 211 application to concrete mixture proportioning and design

Time Limit

4 hours written; 2 hours practical application

Passing Score

Written: at least 60% on each subsection and at least 70% overall. Practical application: at least 70%.

Exam Fee

ACI does not publish one national CQTM exam/session fee on the official program page; fees are handled through ACI sponsoring groups. (American Concrete Institute (ACI))