The CMS, short for Certified Manufacturing Specialist, is an ATMAE credential for people finishing or holding a related degree, or with equivalent work experience. This page gives you free practice sets grouped by topic, worked question explanations, a study plan, and the exam facts ATMAE publishes on format, fees and retakes. Practice with the free Certified Manufacturing Specialist practice test on PracticeTestGeeks (9 questions with answer explanations).
Interactive Certified Manufacturing Specialist resources on PracticeTestGeeks, free to start:
The CMS has 180 questions, takes about 2 hours and costs $150[1][2][3] (Association of Technology, Management, and Applied Engineering, verified Oct 28, 2026).
Numbers in brackets link to the official sources listed under Sources & last verified. Dates that have passed are removed automatically.
| Item | Detail | Source · Verified |
|---|---|---|
| Number of questions | 180 multiple-choice questions[1] | Association of Technology, Management, and Applied Engineering · Oct 28, 2026 |
| Time limit | 2 hours[2] | Association of Technology, Management, and Applied Engineering · Oct 28, 2026 |
| Passing score | Determined by cumulative score[1] | Association of Technology, Management, and Applied Engineering · Oct 28, 2026 |
| Exam fee | $150 (professional non-member) / $50 (professional member)[3] | Association of Technology, Management, and Applied Engineering · Oct 28, 2026 |
| Retake fee | $25 per retake[3] | Association of Technology, Management, and Applied Engineering · Oct 28, 2026 |
| Retake policy | No waiting period; unlimited attempts allowed[2] | Association of Technology, Management, and Applied Engineering · Oct 28, 2026 |
| Validity | 1 year (annual renewal required)[2] | Association of Technology, Management, and Applied Engineering · Oct 28, 2026 |
| Renewal | Annual dues ($100 membership + $35 certification for professionals)[3] | Association of Technology, Management, and Applied Engineering · Oct 28, 2026 |
| Delivery | Online examination with proctor[4] | Association of Technology, Management, and Applied Engineering · Oct 28, 2026 |
| Eligibility | Final-year student in related 4-year program, or related 2-year associate degree, or equivalent work experience[2] | Association of Technology, Management, and Applied Engineering · Oct 28, 2026 |
| Score release | Immediately upon completion[2] | Association of Technology, Management, and Applied Engineering · Oct 28, 2026 |
According to Association of Technology, Management, and Applied Engineering, “The CMS exam is an open-book, 180 question multiple-choice examination.”[1]
The Certified Manufacturing Specialist exam is offered by the Association of Technology, Management, and Applied Engineering (ATMAE). It is delivered online with a proctor, and ATMAE states that examinations are administered online as requested.
The exam has 180 multiple-choice questions and a time limit of 2 hours. ATMAE describes it as open-book, so the skill being tested is finding and applying the right idea quickly, not recalling every detail from memory. Passage is determined by a cumulative score. ATMAE does not publish a simple cut-off in the material we checked, so check the official CMS page for any update. Results are shown immediately on completion.
For eligibility, ATMAE says candidates should be in the last year of a related 4-year degree program, or hold a related 2-year associate degree. Equivalent work experience is also listed as a route.
The fee is $150 for professional non-members and $50 for professional members. Retakes cost $25 each, there is no waiting period, and you can try again as many times as you like. Certification runs for 1 year and needs annual renewal: for professionals that is $100 membership plus $35 for the certification.
Fees and rules can change, so confirm them on the ATMAE site before you register.
Prepare for the CMS - Certified Manufacturing Specialist exam with our free practice test modules. Each quiz covers key topics to help you pass on your first try.
These are practice questions written for this site, not questions from the real exam. Each explanation shows why the right answer is right and why the others are wrong.
Question: What does MRP stand for in the context of manufacturing planning systems?
Answer: A. Material Requirements Planning
Explanation:
The correct answer is Material Requirements Planning. MRP takes the Master Production Schedule and the Bill of Materials and works out which materials are needed and when, so purchasing and production can be timed to demand.
The other options are plausible-sounding but wrong. "Manufacturing Resource Program" borrows from MRP II, a broader system that also covers capacity and finance, but it is not what the MRP acronym stands for. "Material Resource Processing" and "Manufacturing Requirements Protocol" are invented phrases that only mimic the vocabulary.
The rule to remember: expand an acronym by what the system does. MRP is about requirements for materials, driven by the schedule and the bill of materials. If an option swaps in a generic word such as program, processing or protocol, treat it with suspicion.
Question: What is 'absenteeism rate' used to measure in manufacturing HR management?
Answer: B. The frequency and duration of unplanned employee absences relative to scheduled work time
Explanation:
The correct answer is the frequency and duration of unplanned employee absences relative to scheduled work time. Absenteeism rate is a people measure: it compares time lost to unplanned absence against the time people were expected to work, and managers read it as a sign of morale, workload or workforce health.
The percentage of defective parts per shift is a quality measure, often called a defect or scrap rate. Machine downtime during a run is an equipment measure, linked to availability and maintenance. Inventory shrinkage over a quarter is a stock-control measure about lost or unaccounted items.
The rule to remember: match the metric to the thing being measured. If the options mix people, parts, machines and stock, ask which resource the term describes. Absenteeism always concerns people and their scheduled time.
Question: Which of the following is a fundamental principle of automation & industrial robotics as it applies to Certified Manufacturing Specialist?
Answer: A. Systematic evaluation and adherence to established industry standards
Explanation:
The correct answer is systematic evaluation and adherence to established industry standards. In automation and robotics work, repeatable results, safety and compliance depend on following documented standards and checking work against them in a structured way.
Relying only on personal experience is wrong because experience without reference to guidelines produces inconsistent results that cannot be audited. Putting speed ahead of accuracy and compliance is wrong because rushed automation work tends to create defects, rework and safety problems. Avoiding documentation is wrong because records are how others verify, maintain and repeat what was done.
The rule to remember: on professional-practice questions, the best answer is usually the one that is systematic, documented and standards-based. Options that skip references, cut corners or avoid records are almost always the distractors.
Start with the official material. Read the ATMAE CMS page and the study guide it links to, and note which topics are unfamiliar. Because the exam is open-book, also decide which references you would actually use on the day and practise looking things up in them.
Next, work through our practice sets by topic rather than at random. Begin with the areas you rated weakest, for example Manufacturing Processes and Techniques, Quality Control and Assurance or Lean Manufacturing and Waste Reduction. After each set, read the explanation for every question you missed and write a one-line rule in your own words.
Then add the planning and systems topics, such as Production Scheduling and Capacity Planning and Manufacturing Information Systems and ERP. Finish with mixed sessions under a timer set to the 2 hours the exam allows, so pacing across 180 questions feels familiar.
Our questions are written by us with AI tools and are not real exam questions. Use them to find gaps, not to predict the exam.
The CMS exam has 180 multiple-choice questions. ATMAE describes it as an open-book exam and allows 2 hours to complete it. It is delivered online with a proctor, and you see your result immediately when you finish.
For professionals, the exam fee is $150 for non-members and $50 for ATMAE members. ATMAE lists lower student rates on its fees page. The fee includes certification and ATMAE membership upon passing. Check the official fees page for current amounts before you register.
ATMAE says passage is determined by a cumulative score. The material we checked does not give a simple percentage cut-off, so we do not state one. Your result is shown immediately after you finish, and the ATMAE CMS page is the place to look for any update.
Yes. ATMAE says there is no waiting period and you can retake the exam as many times as you like. Each retake costs $25. Use your result and the topics you found hard to choose which practice sets to repeat before trying again.
ATMAE says candidates should be in their last year of a related 4-year degree program or hold a related 2-year associate degree. Equivalent work experience is also listed. If your situation is unclear, ask ATMAE directly through its certification FAQ or contact page.
Initial certification requires annual renewal, so it runs for 1 year at a time. For professionals, ATMAE lists renewal as $100 for membership plus $35 for the certification. Student rates differ, so check the fees page for the amount that applies to you.
How we verify: editorial & fact-checking policy. Report an error: contact us.