MCC-NH Gas Fitters Practice Exam – All Questions

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Choosing the Right Pipe Materials for Gas Distribution: What You Need to KnowWhat should be considered when selecting pipe materials for gas distribution systems?Discover the Benefits of Flexible Piping Types like CSSTWhat is one of the benefits of using flexible piping types like CSST?Ensuring Safety After Gas System RepairsWhat should be done after fixing a detected leak in a gas system?Essential First Steps When Activating Gas SupplyWhat is the first step when turning on the gas supply?Essential Safety Practices for Larger Gas Piping ConduitsWhat must be ensured when using a larger pipe as a conduit for gas piping?Essential Safety Steps for Gas Leak ManagementWhat is an essential precaution when handling gas leaks?Essential Tools for Locating Buried Plastic PipesWhat is required to facilitate the locating of buried plastic pipe?Essential Training Hours for Gas Fitters: Are You Ready for the Challenge?How many hours of on-job-training are required for the third specialty license?Essential Training Requirements for the MCC-NH Gas Fitters LicenseHow many hours of educational training are required for the first specialty license?Exploring Underground Gas Piping Options: What's Best?What type of piping can be used for gas service underground instead of black steel pipe?Finding CSST Support Spacing Information: A Practical GuideWhere can support spacing information for CSST be found?Finding the Right Formula: Understanding Pressure Change Due to TemperatureWhere can the formula for determining pressure change due to temperature be found?Getting Ready for Piping Safety: Leak Checks and Pressure Tests ExplainedPrior to acceptance and initial operation, what must all piping installations undergo?Getting the Gas Piping Right: Understanding LP Gas SystemsWhich table is referred to for designing a gas piping system with LP gas, 11" W.C. supply pressure, and soft copper tubing?Handling Updated Gas Code Requirements WiselyHow should one approach a situation where installed gas systems are affected by updated codes?How to Get the Heating Value of Gas for Your Gas Fitting ProjectsWho should be contacted to obtain the heating value of the gas used?How to Locate Gas Leaks Effectively: Best Methods for Gas FittersWhich method is recommended for locating a leak during a pressure test?How to Protect Gas Piping from External DamageWhat should be done to protect gas piping from external damage when a minimum depth cannot be achieved?Keep Gas Out: The Importance of Sealing Unused OutletsWhat must be done with outlets that are not to be used immediately after an appliance is disconnected?Keep It Tight: Why Securing Outlet Fittings and Piping is EssentialWhat is the usual requirement for securing outlet fittings or piping?Key Insights on Gas Piping System Sizing for Reliable Appliance PerformanceWhat is a key consideration for gas piping system sizing?Mastering Appliance Isolation for High Test Pressure SafetyWhat is the recommended method to isolate appliances designed for high test pressures?Mastering CSST Installations: Your Guide to Manufacturer’s InstructionsWhen installing CSST, what must be adhered to?Mastering Drip Installation in Gas Piping SystemsWhere are two potential locations for a drip installation in gas piping systems?Mastering Gas Appliance Isolation for Effective Pressure TestingHow can you isolate appliances not included in a pressure test?Mastering Gas Leak Detection Techniques for New Branch InstallationsWhen testing a new branch installed on an existing system, what method is used to identify leaks?Mastering Gas Leak Detection: A Key Skill for Gas FittersWhich of the following is a common method for detecting gas leaks?Mastering Gas Piping Support: Understanding Weight and StabilityWhich factor is critical when determining spacing for gas piping supports?Mastering Gas Piping: Understanding Black Iron and Soft Copper TubingWhich materials are being referenced in gas piping systems concerning the tables mentioned?Mastering Plastic Piping in Gas Fitters: Your Guide to CPN 5.6.8What CPN covers plastic piping joints and fittings?Mastering Pressure Tests: A Practical Guide for Gas FittersDuring a pressure test, what do you do if the piping is concealed?Mastering Pressure Tests: Safely Isolating Sensitive AppliancesHow can appliances and equipment that are not designed for high pressures be isolated during a pressure test?Mastering Safety: Essential Measures for Gas Work InterruptionsWhich component is deemed essential for achieving safe conditions during work interruptions?Mastering Steel Pipe Connections: Your Guide to Reliable MethodsWhich methods of connection are permitted for steel pipe?Mastering the Backfill Technique for Gas Piping SafetyWhat should be done during backfilling of a trench after gas piping installation?Mastering the Essentials of Gas System Tightness AssessmentWhat is primarily tested when assessing the tightness of a gas system?Mastering Trench Requirements in Gas Piping InstallationsWhat is a requirement for trench construction in gas piping installations?Mastering Your Piping Plan: Key Elements for Gas Safety and EfficiencyWhat is a requirement that must be included on a piping plan?Pressure Testing: A Key Step for Gas FittersUnder what circumstances does a pressure test usually occur?Protecting Plastic Pipes: Essential Heating Guidelines for Gas FittingWhat is required when installing plastic piping underground to prevent heat impairment?Protecting Underground Piping: The Essential Sleeve MethodWhat must be done to underground piping passing through a foundation wall?Sealing Gas Pipes: Essential Steps for Building IntegrityWhat should be sealed around a gas pipe that passes through an exterior wall?Space Matters: Understanding Gas Outlet Distances for Safety and EfficiencyWhat is the appropriate distance a gas outlet should be from walls and other surfaces?The Cost Behind the Fuel Gas Trainee License: What You Need to KnowWhat is the cost of the initial fuel gas trainee license?The Essential First Step for Gas Piping SafetyWhat is the first step before separating gas in a piping section for testing?The Essential Guide to Gas Piping Support According to NFPA 54According to NFPA 54, how should gas piping be supported?The Essential Guide to Plastic Gas Piping RegulationsWhere is plastic gas piping allowed to be used?The Essential Role of Purging Gas Conduits for Safety and EfficiencyWhat is the main purpose of purging a gas conduit?The Essential Steps Before Pressurizing Newly Installed PipingWhich action is crucial before pressurizing newly installed piping?The Hidden Effects of Heat on Underground Plastic PipingWhat effect does heat have on underground plastic piping if not properly insulated?The Hidden Impact of Temperature on Pressure Testing ResultsWhat temperature condition can impact pressure test results?The Importance of Burying or Covering Gas PipingWhat is the purpose of burying or covering piping?The Importance of Excess Flow Valves in Gas Piping SystemsWhat is the consequence of a major rupture in the piping system regarding excess flow valves?The Importance of Marker Tape in Gas Piping InstallationsWhat is the main purpose of using marker tape in gas piping installations?The Importance of Minimum Gas Supply Pressure for AppliancesWhy is it important to ensure appliances receive the minimum supply pressure?The Importance of Minimum Manifold Pressure for Gas AppliancesFor a gas appliance to function properly, it must receive what?The Importance of Painting Black Iron Piping OutdoorsWhat is the impact of not painting black iron piping outdoors?The Key to Successful Gas Piping Installation: Understanding Support SpacingWhat table should be referenced for support spacing of gas piping?The Real Cost of Renewing Your Fuel Gas Trainee LicenseHow much does the renewal of a fuel gas trainee license cost?The Right Operating Pressure for Gas Piping Systems: What You Need to KnowWhat should be the operating pressure for a gas piping system inside a building according to maximum design standards?The Vital Role of Terra Tape in Gas Piping InstallationsWhat is the function of "Terra tape" in gas piping installations?Understanding Absolute Safe Pressure for LP Gas: Key Insights for Gas FittersWhat is the normal ASP (absolute safe pressure) for LP gas?Understanding Annex A Table 5.4.2.1 for Gas Fitting SuccessWhich table will be used to determine approximate inputs for typical gas appliances?Understanding Black Iron Steel Pipe: Minimum Wall Thickness and Its ImportanceWhat is the minimum wall thickness for black iron steel pipe?Understanding Bonding Jumpers in Gas FittingWhat does the term 'Bonding Jumper' refer to in NFPA 54?Understanding BTU Conversion: The Key to Mastering Gas FittingWhat is the equivalent of 150,000 BTU/Hr in cubic feet using a standard conversion?Understanding BTUs in LP Gas: A Key Concept for Gas FittersHow many BTUs are approximately contained in 1 cubic foot of LP gas?Understanding BTUs: The Energy Content of Natural GasHow many BTUs are approximately contained in 1 cubic foot of natural gas?Understanding Chapter 7 of NFPA 54: Gas Piping Installation EssentialsWhat does Chapter 7 of NFPA 54 cover?Understanding Chapter 8 of the MCC-NH Gas Fitters ExamAccording to chapter 8, which of the following is NOT a requirement?Understanding Clearance Requirements for Underground Gas PipingWhen installing gas piping underground, clearance must be provided from:Understanding Compliance for Gas Systems Installed Before 2000What would be the immediate action required for gas systems installed before 2000 that do not comply with current code?Understanding CPN 5.6.7 for Metallic Piping Joints and FittingsWhat CPN covers metallic piping joints and fittings?Understanding Dig Safe Regulations in New HampshireHow far in advance should Dig Safe be notified before any digging takes place in New Hampshire?Understanding Downstream Demand in Gas FittingIn gas fitting, what does the term 'downstream demand' refer to?Understanding Drips in LP Gas Systems: What You Should KnowUnder what conditions are drips required on LP gas systems?Understanding Effective Ground-Fault Current Path in Gas SystemsWhat is the purpose of an Effective Ground-Fault Current Path as defined in NFPA 54?Understanding First Stage Regulators: The Backbone of Gas Supply SystemsWhat do first stage regulators compensate for?Understanding First Stage Regulators: The Key to Reliable Gas DistributionWhich characteristic is crucial for the reliability of first stage regulators?Understanding Flush-Mounted Quick-Disconnect Devices in Gas FittingWhat type of devices are exempt from certain installation provisions concerning outlets?Understanding Fuel Gas Trainee License ExpirationWhen does a fuel gas trainee license typically expire?Understanding Gas Installation Permits: What You Need to KnowWhen is a permit required to be secured for gas installations?Understanding Gas Leak Detection: What You Should Never DoWhat is not recommended to locate a leak during testing?Understanding Gas Meter Accessibility RequirementsGas meters must be located in ventilated spaces that are readily accessible for what purposes?Understanding Gas Outlet Installation Guidelines for the MCC-NH ExamWhich of the following is NOT a requirement for the locations and installation of gas outlets?Understanding Gas Pipe Sizing: The Longest Length MethodWhat is the most common method used for sizing gas pipes?Understanding Gas Piping Installation Standards: Start Right for SafetyWhere does the piping installation begin according to the installation standards?Understanding Gas Piping Outlet Requirements for SafetyHow far must gas piping outlets extend above the floor?Understanding Gas Piping Purging RequirementsWhich size piping may require gas piping to be purged with inert gas before service?Understanding Gas Piping Safety in Utility RoomsWhich of the following is NOT a prohibited location for gas piping?Understanding Gas Piping System Integrity: What Inspectors Look ForIf the pressure rises in a gas piping system, is a formula needed to prove to the inspector that the system is gastight?Understanding Gas Piping Systems: Safety and Standard Operating PressureWhat is the maximum design operating pressure for any gas piping system?Understanding Gas Piping Test Duration in Residential SettingsIs it necessary to determine the volume of a residential piping system to establish the test duration? Why or why not?Understanding Gas Piping Tests: What You Need to KnowFor testing gas piping systems, which volume range requires a minimum testing time of 24 hours?Understanding Gas Piping: Ensuring Minimum Pressure for Safe Appliance OperationAccording to NFPA54, gas piping systems should be sized to ensure what for each appliance?Understanding Gas Pressure in Building Conduit SystemsIf a larger pipe is used as conduit inside a building, what must the pipe be able to withstand?Understanding Gas Purging and Safe Operation ProtocolsWhat activity should follow after purging gases outdoors?Understanding Gas Supply Delivery Points: Who's in Charge?Who is responsible for determining the point of delivery for gas supply?Understanding Gas System Leak Checks for SafetyWhich gas system operation involves checking for leaks?Understanding Gas Testing: What You Need to KnowWhich of the following is NOT an approved test medium gas?Understanding Gas Tightness in Piping Systems: The Bubble Solution MethodWhat is required to assess the gas tightness of a tie-in section of a piping system?Understanding Ground-Fault Current Paths: AC and DC ExplainedWhat type of current does an Effective Ground-Fault Current Path deal with?Understanding Grounding Electrodes in Gas FittingWhat is a Grounding Electrode according to NFPA 54?Understanding Inert Gases: What You Need to Know for Gas FittingWhich gases are considered the most common inert gases?Understanding Leak Tests vs. Pressure Tests in Gas SystemsWhen should a leak test be performed as opposed to a pressure test?Understanding Line Gas Pressure Regulators: Key Regulations to KnowLine gas pressure regulators must be listed in accordance with which sections?Understanding Line Pressure Regulators: Essential for Gas AppliancesWhat is required when the available supply pressure is higher than what the appliance is designed for?Understanding Long-Term Pressure Tests in Gas Piping SystemsWhich factor should be considered during long-term pressure tests according to NFPA 54?Understanding LP Gas: Specific Gravity DemystifiedWhat is the approximate specific gravity of LP gas?Understanding Manifold Pressures for Safe Gas Appliance InstallationWhy is it important to adhere to the specified manifold pressures when installing gas appliances?Understanding Maximum Design Operating Pressure for Gas Piping Inside BuildingsWhat is the maximum design operating pressure for piping located inside a building?Understanding Maximum Pipe Sizes for Threaded Joints in Gas FittingWhat is the maximum pipe size for which threaded joints can be used without the approval of the AHJ?Understanding Minimum Cover Depth for Underground Pipe InstallationsWhat is the minimum cover depth required for underground pipe installations?Understanding Minimum Pipe Protrusions for Gas FittingsWhat is the minimum length of unthreaded pipe that must protrude from walls or ceilings?Understanding NFPA 54: The Basics of Gas Piping InstallationA gas piping installation covered by NFPA 54 includes all fixed piping from where to where?Understanding NFPA 58: The Key to Safe Propane RegulationWhich code covers the 1st and 2nd stage regulators on a liquid propane (LP) system?Understanding Normal Average Service Pressure for Natural GasWhat is the normal ASP (average service pressure) for natural gas?Understanding Normal Manifold Pressure for LP Gas SystemsWhat is considered the normal manifold pressure for LP gas?Understanding Normal Manifold Pressure for Natural Gas AppliancesWhat is the normal manifold pressure for natural gas?Understanding Polyamide: The Go-To Choice for Gas PipingWhat material is Polyamide classified as for gas piping?Understanding Press Connect Fittings and Their Compatibility with Copper TubingCan press connect fittings be utilized with copper tubing?Understanding Pressure Drop Design in Piping SystemsWhat is the industry best practice pressure drop design for piping systems?Understanding Pressure Drop in Gas Piping SystemsWhich of the following represents the requirement for pressure drop in a gas piping system due to temperature change?Understanding Pressure Drop in Natural Gas Systems: What You Need to KnowFor a natural gas system with a 6" W.C. supply pressure and black iron pipe, which table should be referenced for maximum .5" W.C. pressure drop?Understanding Pressure Drops in Gas Piping SystemsWhat is the maximum pressure drop allowed on a gas piping system not caused by a temperature change?Understanding Pressure Drops in Gas Piping SystemsWhich table should be referenced for designing a gas piping system to have a maximum .5" W.C. pressure drop for LP gas and black iron pipe?Understanding Pressure Test Durations for Gas FittersWhat is the minimum duration for a pressure test on piping with a volume less than 10 cubic feet?Understanding Pressure Testing for Gas Piping SystemsFor piping with a volume greater than 10 cubic feet, how long should a pressure test be conducted?Understanding Pressure Tests in Gas Fitting: Key Components to ExamineWhat should be left exposed for examination during pressure tests?Understanding Pressure Tests in Gas Piping SystemsWhat does a pressure test evaluate in a gas piping system?Understanding Prohibited Locations for Gas Piping in BuildingsWhat are the prohibited locations for gas piping inside a building?Understanding Purging Gas Piping Requirements for Safe InstallationsWhat requirement is related to purging gas piping when alterations are made?Understanding Purging in Gas Fitting: A Deep Dive into NFPA 54What is the definition of "Purge" in the context of NFPA 54?Understanding PVC in Gas ApplicationsWhat is a common use for PVC in gas applications?Understanding Readily Accessible Shutoff Valves in Gas FittingUnder what condition is a shutoff valve located above a drop ceiling considered readily accessible?Understanding Regulator Vent Installations for Gas SystemsWhat should a regulator vent be installed to prevent the entry of?Understanding Regulator Vents: Your Key to a Moisture-Free Gas SystemWhat accessory should be used to prevent moisture from entering a gas system?Understanding Requirements for Metallic Pipe Threads in Gas FittingWhat is the requirement for metallic pipe threads?Understanding Safety Protocols in Gas Systems: What to Do During Work InterruptionsIn the event of work interruptions, what should be done to the piping system?Understanding Schedule 10 Steel Pipe: The Threading DilemmaCan you thread schedule 10 steel pipe?Understanding Second Stage Regulators: Their Role in Gas DistributionWhat do second stage regulators compensate for?Understanding Sediment Traps in Gas FittingWhat is the minimum length required for a sediment trap between the tee and the cap?Understanding Service Head Adapters for Outdoor Plastic PipingWhat type of fitting assembly is used for aboveground outdoor plastic piping?Understanding Shut-Off Valve Placement in Dual Regulated LP SystemsWhere is the shut-off valve typically located on a dual regulated LP system?Understanding Shutoff Valve Requirements in Laboratory SettingsWhat is a requirement for a shutoff valve in a laboratory setting?Understanding Test Pressure for Gas Piping SystemsWhat is the minimum required test pressure for gas piping systems?Understanding the 100 Hours Requirement for a Second Specialty License in Gas FittingHow many hours of educational training are required for the second specialty license?Understanding the 1000 Hours of On-Job Training for Gas FittersHow many hours of on-job-training are required for the first specialty license?Understanding the Accessibility of Shutoff Valves for Gas FittersWhich is a requirement for a shutoff valve to be considered readily accessible?Understanding the Best Plastic Piping for Gas Supply SystemsWhat type of plastic piping is accepted for use as gas pipe?Understanding the BTU to Cubic Feet Conversion for Natural GasHow do you convert 150,000 BTU/Hr to the appropriate cubic feet for natural gas?Understanding the Determination Period for Pressure Testing in Commercial Piping SystemsWhat is the determination period for a pressure test on a commercial piping system greater than 100 cubic feet?Understanding the Discharge of Purged Gases in Gas FittingWhat should happen to the discharge of purged gases?Understanding the First Tier in Gas Fitting LicensesWhat is the first tier to the specialty license in gas fitting?Understanding the Fuel Gas Trainee License: What You Need to KnowFor how many years is a fuel gas trainee license active before it expires?Understanding the Importance of Capping Gas OutletsWhat does the term "cap all outlets" require regarding gas outlet installations?Understanding the Importance of Continuous Adjustment by Gas RegulatorsWhen is it expected that regulators compensate for changes in supply?Understanding the Importance of Documenting Pressure Tests in Gas PipingWhat is the requirement for documenting pressure tests in gas piping?Understanding the Importance of Drip in NFPA 54 StandardsWhat does the term 'Drip' refer to in the context of NFPA 54?Understanding the Importance of Leak Checks in Gas SystemsWhy is it necessary to perform a leak check?Understanding the Importance of Minimum Cover Depth for Underground PipingIf external damage is likely, what is the increased minimum cover depth for underground piping?Understanding the Importance of NFPA 54 in Gas Piping InstallationWhat is the main objective of following standards like NFPA 54 in gas piping installation?Understanding the Importance of Outdoor Gas Piping SafetyWhich of the following is a requirement for gas piping installed outdoors?Understanding the Importance of Permits When Modifying Gas SystemsWhat should be done when adding appliances to an existing system?Understanding the Importance of Preventing Gas Trapping in Pipe InstallationsWhen installing gas pipe inside a larger pipe, what must be prevented?Understanding the Key Considerations for Underground Gas PipingWhat is one of the key considerations when dealing with underground gas piping?Understanding the Key to Successful Gas Piping DesignWhich of the following choices is crucial for gas piping design to minimize pressure drop?Understanding the Limitations of Cast Iron in Gas ApplicationsHow should cast iron be viewed in terms of its usability in gas applications?Understanding the Limitations of Threaded Joints in Gas FittingWhy are threaded joints generally limited to certain pipe sizes?Understanding the Maximum Allowable Pressure for Mechanical GaugesWhat is the maximum allowable pressure for a mechanical gauge used during a pressure test?Understanding the Passing Score for MCC-NH Gas Fitters Written TestsWhat is the minimum percentage needed to pass a written test for each specialty license?Understanding the Requirements for Your Second Specialty Gas Fitter LicenseHow many hours of on-job-training are required for the second specialty license?Understanding the Role of a Fuel Gas Service TechnicianWhat is the third tier to the specialty license?Understanding the Role of a Service Head Adapter in Gas Piping SystemsWhat is the function of a Service Head Adapter in gas piping systems?Understanding the Role of Appliances in the Gas Distribution SystemAre appliances part of the fixed piping system?Understanding the Role of Closed Valves in Gas SeparationWhat is the purpose of having two closed valves with an opening between them during gas separation?Understanding the Role of Excess Flow Valves in Gas FittingWhat is the primary function of an excess flow valve?Understanding the Role of PVC in Underground Gas PipingCan PVC be used for underground gas piping?Understanding the Second Tier of the Specialty License in Gas FittingWhat is the second tier to the specialty license?Understanding the Specific Gravity of Natural Gas for Gas FittersWhat is the specific gravity of natural gas approximately?Understanding the Standard 24-Hour Test for Gas Piping SystemsWhat is the maximum test duration for any gas piping system regardless of its volume?Understanding the Training Requirements for Your Third Specialty Gas Fitting LicenseHow many hours of educational training are required for the third specialty license?Understanding the Use of Combustible Gas in Leak ChecksWhat type of gas is used in a leak check?Understanding the Use of PVC in Gas PipingIs PVC allowed to be used as gas piping?Understanding the Use of Soft Copper in Gas PipingWhat is a typical use case for soft copper in gas piping?Understanding Threads on a 3/4 Inch Black Iron PipeHow many threads should there typically be on a 3/4 inch black iron pipe?Understanding Tracer Wire: A Key Element in Gas Piping SafetyWhat is the significance of the tracer wire when installing gas piping in a trench?Understanding Transition Fittings in Gas Piping SystemsWhich type of piping requires a special transition fitting as defined in NFPA 54?Understanding Underground Gas Piping RequirementsWhat is required for gas piping installed underground beneath buildings?Understanding Venting Methods for Gas Pressure RegulatorsWhich method is used to accomplish venting a line gas pressure regulator?Unlocking the MCC-NH Gas Fitters Exam: Essential InsightsWhat is the minimum number of questions required on each specialty license test?What to Do if Your Gas Piping System Falls Out of CodeIf a gas piping system installed in 2000 no longer meets current code requirements, what should be done?What to Do When You Detect a Gas Leak: Critical Safety StepsWhat should be done immediately after a leak is detected?Why a Leak Check is the Heartbeat of Gas Piping SafetyWhat operation verifies that a gas piping system does not leak?Why Access to Shutoff Valves is Crucial for SafetyDo shutoff valves need to be readily accessible?Why Bubble Solution is Essential for Gas Fitting SafetyWhat is a bubble solution commonly used for in gas fitting?Why Cast Iron Falls Short in Gas Fitting ApplicationsWhat can cast iron be used for in gas fitting?Why Copper Pipes Reign Supreme for Underground InstallationWhat type of piping is recommended for underground installation to prevent corrosion?Why Independent Support is Key in Gas Fitting StandardsCan piping support other piping according to gas fitting standards?Why Isolating Equipment is Key in Pressure TestingWhat is the primary reason for isolating equipment not included in pressure testing?Why Nitrogen is the Gas of Choice for Safe Leak TestingDuring a leak test, which gas is preferred for maintaining safety?Why Oxygen-Free Test Mediums Ensure Safety in Gas FittingWhy should a test medium not include oxygen?Why Painting Black Iron Piping is Essential for Outdoor InstallationsWhat action should be taken for black iron piping installed outdoors above ground?Why Proper Sealing of Gas Piping is EssentialWhat is a potential consequence of not sealing gas piping passing through exterior walls?Why Purging Gas Lines is a Must for SafetyWhy is it important to purge gas lines prior to service?Why Regulators Need to Be Readily Accessible in Gas SystemsDo regulators need to be readily accessible?Why Sealing Annular Spaces in Gas Piping MattersWhy must the annular space around gas piping be sealed when passing through an exterior wall?Why Sizing Gas Piping is Essential for EfficiencyWhat is the primary purpose of sizing gas piping systems as noted by regulations?Why Two Shutoff Valves Are Better Than OneCan a single shutoff valve separate gas in one section and test medium in another?Why Wooden Blocks Don’t Cut It for Gas Piping SupportWhat type of support is typically NOT used for gas piping according to NFPA 54?Why You Need Readily Accessible Gas MetersAre meters required to be readily accessible?

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