Exam - Professional - RMFD

Retail Motor-Fuel Dispensing Systems

The NCWM Professional Certification Program provides assurance that an individual has a working knowledge of the U.S. standards for weights and measures as adopted by the NCWM. Certification is available to any individual, whether from the public or private sector whose profession requires thorough understanding of the national weights and measures standards. The Retail Motor-Fuel Dispensing Systems certification exam will draw on relevant portions of Handbook 44, Handbook 112, and NTEP Documents.

Retail Motor Fuel Dispensing Systems

Retail Motor Fuel Dispensing Systems

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Non-Member $120.00


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Format and Duration:

The examination consists of three timed sections and will include a total of 50 questions as described below.  All three sections of the exam must be completed in one session and the candidate may not log off and return to the exam at a later time.  Each section must be completed before moving to the next section of the exam.  Once a section has been completed, the individual may not return to a previously submitted section.

The examination is to be taken alone, without assistance from any other individual.  The exam is OPEN BOOK as follows:  The candidate may use the current versions of NIST Handbook 44 and NIST Handbook 112, specifically, EPO 21 - Retail Motor-Fuel Dispensers, and EPO 22 - Retail Motor-Fuel Dispensers Blended. Candidates are encouraged to familiarize themselves with the PDF file version of the documents including learing to use the pdf search feature to navigate the documents before taking the test. 

Test instructions are provided online prior to starting the exam.  Since the test is electronically graded, the answer must be marked correctly.  The test questions are multiple-choice and you will be asked to pick the best answer from 4 options. There is a short practice test to familiarize you with the exam environment and ensure that these basic rules for responses are understood.

Applicants may prepare for the exam by carefully reviewing the modules above and using them as a study guide. Materials from formal training classes are also a good resource. Applicants are encouraged to use NCWM’s Field Training Manual for Retail Motor Fuel Dispensers as a study aid, review the applicable sections of NIST Handbook 44 and the NIST Examination Procedure Outlines. The handbook and EPOs can be found on the NIST website. NIST has produced a series of detailed videos on RMFD inspections that are available on the Internet. Examinees should read an NTEP Certificate of Conformance to become familiar with the format and contents. NTEP CCs can be found on the NCWM website and more details about the NTEP program can be found on the NTEP Frequently Asked Questions page of the NCWM website. All these resources may be accessed at no cost.

Subject of Examination:

1.  Module 4.2 NIST Handbook 44 - Introduction to Device Control |  15 questions (30 minute time limit)
These questions test for knowledge, understanding, and ability to apply the basic requirements applicable to all weighing and measuring devices. This may include questions on the selection, care and use of standards, the legal basis of Handbook 44, the organization of that handbook, understanding of Fundamental Considerations, knowledge of systems of measurement units, understanding and application of General Code requirements, and understanding of NTEP and Certificates of Conformance.

2.  Module 4.4. Dynamic Measuring Systems - General  |  15 questions (35 minute time limit)
These questions test for knowledge and understanding of the basic technologies used in liquid measuring devices (LMD), understanding of classification of various LMD, ability to operate LMD and interpret indications, understanding and ability to apply code requirements from NIST Handbook 44 LMD Code, understanding and ability to conduct basic tests of LMD and properly apply tolerances, and interpreting NTEP Certificates of Conformance.

3.  Module 4.4.1. Retail Motor Fuel Dispenser Systems (RMFD)  |  20 questions (55 minute time limit)
These questions test for knowledge and understanding of the basic technologies used in RMFD systems, understanding and ability to apply code requirements from NIST Handbook 44to RMFD systems. The questions test for knowledge, understanding and application of NIST EPOs in testing RMFDs, proper application of tolerances, and the ability to interpret and apply NTEP Certificates of Conformance.

Passing Score and Grading:

  • 70% (35 or more correct answers)
  • Following the completion of the examination or upon reaching the time limit for the third section, you will receive a total score for the exam and a pass/fail statement for each section.  To protect the integrity of the test questions, NCWM will not advise you of the specific questions you answered incorrectly.  The Professional Development Committee will be reviewing incorrect answers in periodic reviews and will adjust scores in select cases if a question is judged invalid. NCWM will notify you if your score is affected.
  • If you wish to challenge any of the questions, you may contact the NCWM Professional Development Committee through NCWM via email to info@ncwm.com or call (402) 434-4880.
  • A certification issued under this program is valid for five (5) years.