RMGA Cheat Sheet 2026
The 30 highest-yield RMGA facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.
100 questions
240 min time limit
80.00% to pass
- What class of plastic pipe is most commonly used for natural gas distribution in North America based on pressure rating? → PE 4710
- What is the minimum clearance required above a gas range burner grate to combustible overhead cabinets under NFPA 54? → 30 inches
- Why is it important to have regular maintenance of natural gas appliances? → To ensure efficient operation and safety
- When should a gas utility worker eliminate ignition sources near a gas leak? → Immediately upon detecting or suspecting a gas leak
- What is the purpose of the National Environmental Policy Act (NEPA) in the context of natural gas projects? → To require environmental impact assessments for major projects
- What device is installed on a gas meter to measure the volume of gas passing through it? → Diaphragm meter (for residential), turbine or rotary meter (for commercial/industrial)
- What technology allows utilities to detect gas leaks from a moving vehicle? → Mobile leak survey using laser-based methane analyzers mounted on a vehicle
- Which federal agency is responsible for regulating interstate natural gas pipelines in the United States? → Federal Energy Regulatory Commission (FERC)
- What is the 'index' on a natural gas meter? → The register or display showing accumulated gas volume consumed
- Which document must operators of gas pipelines maintain to record all maintenance and inspection activities? → Operations and Maintenance Manual
- What is 'blowing down' a gas line in the context of emergency response? → Venting gas from a pipeline segment to atmosphere to allow safe repair work
- What type of venting material is prohibited for natural gas appliance Category I venting applications? → PVC or CPVC plastic pipe
- What is the correct minimum clearance required between a gas appliance and combustible materials? → As specified on the appliance listing label and installation instructions
- What is the purpose of a pressure regulating station in a gas distribution system? → To reduce transmission pressure to distribution pressure
- What type of corrosion occurs when two dissimilar metals are electrically connected in the presence of an electrolyte? → Galvanic corrosion
- Under 49 CFR Part 192, what is the maximum time allowed for a gas operator to begin investigation of a Priority 1 (hazardous) leak report? → Immediately / as fast as possible (same day)
- What does the term 'MAOP' stand for in pipeline operations? → Maximum Allowable Operating Pressure
- What is the primary hazard associated with natural gas accumulation in an enclosed space? → Asphyxiation due to oxygen displacement and explosion risk
- How often must operators perform patrols on transmission pipelines in Class 1 locations under 49 CFR Part 192? → At least once each calendar year
- Which inspection method uses magnetic flux leakage to detect pipeline defects? → In-line inspection with an ILI tool
- What should you do if you smell gas in your home? → Open windows and doors to ventilate
- What is the purpose of a 'pressure corrector' or 'temperature compensator' on a commercial gas meter? → To correct measured volume to standard conditions (14.73 psia, 60°F) for accurate billing
- What is the first action a gas utility employee should take upon arriving at a reported gas leak inside a building? → Evacuate the building and call 911 before entering
- What is the unit of measurement displayed on a residential natural gas meter in the United States? → Cubic feet (CCF or MCF)
- Which tool is used to locate underground pipelines before excavation in the US? → 811 one-call system
- What type of anode material is commonly used in impressed current cathodic protection systems? → Graphite or mixed metal oxide (MMO)
- How is natural gas odorized before distribution to customers? → Mercaptan (ethyl mercaptan or similar) is injected into the gas stream
- What causes a 'fast meter' in natural gas measurement? → A meter that records more gas than actually passes through it, resulting in over-billing
- Which document is essential for a natural gas company to obtain before beginning construction of a new pipeline? → Environmental Impact Statement (EIS)
- Which regulation mandates that natural gas pipelines must be regularly inspected and maintained to ensure their integrity? → Pipeline Safety Improvement Act
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