100+ Free NRPP RMFT Practice Questions
Pass your NRPP Radon Measurement Field Technician (RMFT) Exam exam on the first try — instant access, no signup required.
Loading questions...
Explore More Radon Professional Certifications
Continue into nearby exams from the same family. Each card keeps practice questions, study guides, flashcards, videos, and articles in one place.
Key Facts: NRPP RMFT Exam
95 questions
Exam Length (85 scored + 10 trial)
NRPP RMFT Exam page
2 hours
Time Limit
NRPP RMFT Exam page
$125
Exam Fee (per attempt)
NRPP
28%
Heaviest Domain: Perform the Test
NRPP/AARST Job Task Analysis blueprint
12 hours
Pre-Test Closed-Building Period (tests under 4 days)
ANSI/AARST MAH-2023
48 hours
Minimum Short-Term Sampling Time
ANSI/AARST MAH-2023
2 years / 8 CE
Certification Cycle and Continuing Education
NRPP certification requirements
30 days
Wait Between Retakes (max 4 per year)
NRPP exam policies
The NRPP RMFT exam certifies entry-level radon technicians who deploy and retrieve test devices under a certified Measurement Professional's QA/QC oversight. Candidates first complete an NRPP-approved initial training course (12-hour minimum), then sit a 2-hour, 95-question multiple-choice exam (85 scored, 10 trial) proctored live online by Certiverse for a $125 fee. The blueprint weights five domains: communicate with the client 16%, evaluate the test site 24%, perform the test 28%, keep records 14%, and ethics/professional practice 18%. Expect precise protocol numbers from ANSI/AARST MAH-2023 and MS-QA-2023 — 12-hour pre-test closed-building conditions for tests under 4 days, 48-hour minimum sampling, placement at least 20 inches above the floor, 3 feet from windows/doors, 1 foot from exterior walls, duplicates at about 10% and blanks at about 5%, and annual CRM calibration. Both standards are accessible inside the exam platform. Retakes require a 30-day wait (maximum four attempts per year). NRPP warns the credential may not be accepted in some licensing states, so verify state rules before practicing.
Sample NRPP RMFT Practice Questions
Try these sample questions to test your NRPP RMFT exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.
1When explaining radon risk to a homeowner, which health effect is the only one conclusively linked to chronic residential radon exposure?
2According to EPA estimates cited in homeowner publications, approximately how many lung cancer deaths in the United States are attributed to radon each year?
3A client asks where the radon in their home comes from. What is the primary source of elevated indoor radon in most homes?
4What is the approximate half-life of radon-222, the radon isotope of concern in indoor air?
5Why do radon decay products (RDPs), rather than radon gas itself, deliver most of the radiation dose to the lungs?
6What does the U.S. Surgeon General's 2005 national health advisory recommend regarding radon?
7A client whose test came back at 3.5 pCi/L says, "Great — under 4 means my house is safe." Which response correctly describes the EPA action level?
8A client from Canada asks what the EPA action level of 4 pCi/L equals in SI units. Which value is correct?
9A homeowner says their next-door neighbor tested at 1.5 pCi/L and asks whether they still need to test their own house. What is the correct response?
10A client with an elevated result asks how homes with radon problems are typically fixed. What is the correct answer?
About the NRPP RMFT Exam
The NRPP Radon Measurement Field Technician (RMFT) exam is the entry-tier national certification test for staff who deploy and retrieve radon measurement devices in residential testing. The 95-question, 2-hour exam (85 scored plus 10 unscored trial items) is delivered through Certiverse live online proctoring and is built on the ANSI/AARST MAH-2023 measurement protocol and MS-QA-2023 quality assurance standard, both accessible within the exam platform. Certified RMFTs must work under the general supervision and QA/QC oversight of a certified Radon Measurement Professional in the same company. The certification runs on a two-year cycle with 8 hours of continuing education, and NRPP cautions that some state licensing programs do not accept this credential.
Questions
95 scored questions
Time Limit
2 hours
Passing Score
Criterion-referenced pass/fail cut score on the 85 scored items; results reported within 48-72 business hours
Exam Fee
$125 (plus $250 certification fee on passing) (National Radon Proficiency Program (NRPP), administered by the Indoor Environments Association (AARST); exam delivered via Certiverse live online proctoring)
NRPP RMFT Exam Content Outline
Communicate with the Client
Explaining radon as the leading cause of lung cancer in never-smokers (~21,000 US deaths/yr), the EPA 4 pCi/L action level and risk below it, the decay series and why decay products damage lungs, the Surgeon General's test-below-third-floor advisory, house-to-house variability, fixability via ASD, plus test-protocol communication: 12-hour pre-closure, occupant responsibilities, written instructions, posted notices, and non-interference agreements
Evaluate the Test Site
Selecting protocols (simultaneous pairs 4 inches apart vs sequential tests, CRM hourly increments, 2-90 day short-term vs long-term precedence), closed-building conditions in detail (recirculate-only window AC, no whole-house fans or swamp coolers, fans within 20 feet off, fireplace exception, mitigation systems on), severe-weather postponement, radon-in-water concerns with well supplies, sumps, buried return ducts, and inspecting existing mitigation systems: U-tube manometer reading, fan not in/below occupiable space, discharge above the eave, pipe slope, and labeling
Perform the Test
Placement rules from MAH-2023: lowest occupiable level for real estate, occupiable-room selection (no kitchens, baths, laundries), at least 20 inches above the floor, 3 feet from exterior doors/windows, 1 foot from exterior walls, 4 inches from objects, one device per 2,000 sq ft of large open area, 48-hour minimum sampling; field QC per MS-QA-2023: duplicates ~10% co-located 4 inches apart, field blanks ~5% submitted blind, routine instrument checks, annual CRM calibration, semi-annual cross-checks, and tamper deterrence
Keep Records
Chain-of-custody documentation from deployment through laboratory receipt, exact start/stop dates and times for decay correction, serial numbers for all devices including duplicates and blanks, property identifier and in-building placement detail, weather during the test, closed-building verification at deployment and retrieval, tamper indications, and recording and communicating protocol deviations to the supervising professional
Operate in an Ethical/Professional Manner
Knowing which ANSI/AARST standard applies (MAH homes, MAMF multifamily, MALB schools/large buildings), state-requirement precedence over NRPP rules and state licensing acceptance limits, never falsifying data or records, reporting deviations to the supervising Measurement Professional, working within certification limits (no result interpretation, final reports, or mitigation work), deploying only trained-on device types, never delegating to uncertified persons, and avoiding outcome-contingent fees and disparagement
How to Pass the NRPP RMFT Exam
What You Need to Know
- Passing score: Criterion-referenced pass/fail cut score on the 85 scored items; results reported within 48-72 business hours
- Exam length: 95 questions
- Time limit: 2 hours
- Exam fee: $125 (plus $250 certification fee on passing)
Keys to Passing
- Complete 500+ practice questions
- Score 80%+ consistently before scheduling
- Focus on highest-weighted sections
- Use our AI tutor for tough concepts
NRPP RMFT Study Tips from Top Performers
Frequently Asked Questions
How many questions are on the NRPP RMFT exam?
The exam has 95 multiple-choice questions: 85 scored items worth one point each plus 10 unscored trial questions being piloted for future exams. You have 2 hours, delivered through Certiverse live online proctoring. AARST has announced a planned streamlining of the RMFT exam (60 scored + 5 pilot items in 90 minutes), so confirm the current format on nrpp.info when you register.
What standards is the RMFT exam based on?
The exam is built on ANSI/AARST MAH-2023 (Protocol for Conducting Measurements of Radon and Radon Decay Products in Homes) and ANSI/AARST MS-QA-2023 (Radon Measurement Systems Quality Assurance). Candidates are given access to both standards inside the exam platform during the test, so knowing how to navigate them quickly is a real advantage.
What training is required before taking the RMFT exam?
You must complete an NRPP-approved Measurement Field Technician initial training course (12-hour minimum) before certification, plus device-specific training (about 2 hours per device type) covering storage, handling, starting and stopping tests, and malfunction detection for each device you will deploy.
Can a certified RMFT work independently?
No. The RMFT is an entry-tier credential: technicians deploy and retrieve devices and document conditions, but must work under the general supervision and QA/QC oversight of a certified Radon Measurement Professional within the same company. The Measurement Professional signs a Statement of Professional Responsibility, validates the data, interprets results, and issues the final report.
Is the RMFT credential accepted in every state?
No. NRPP explicitly cautions that the Field Technician credential may not be accepted in some licensing states — it has cited California, Colorado, Florida, Iowa, Illinois, Kansas, Maine, Nebraska, Ohio, Pennsylvania, and Minnesota. Always verify the state radon program's licensing requirements before performing testing work there.
What happens if I fail the RMFT exam?
A 30-day waiting period is required between attempts, you may not exceed four attempts within 12 months, and each retake requires repurchasing the $125 exam fee. Results are reported as pass/fail within 48-72 business hours, and the exam must be scheduled within 30 days of purchase.
What numbers should I memorize for device placement questions?
The MAH-2023 placement set: at least 20 inches (50 cm) above the floor, at least 3 feet (90 cm) from exterior doors and windows, at least 1 foot (30 cm) from exterior walls, at least 4 inches (10 cm) from other objects, duplicates co-located about 4 inches apart, and roughly one device per 2,000 square feet of large open area — all on the lowest occupiable level for real estate tests.