Alabama Journeyman Gas Fitter Practice Exam

These questions are part of the practice quiz. Start practicing

• What is a diametrically important factor when selecting pipe sizes for gas systems?
• What must be avoided when cutting holes or notches for gas piping?
• According to safety codes, the storage system for liquified natural gas should be designed in accordance with which codes?
• What is a gas leak detector and how does it work?
• According to standards, at what temperature is an appliance categorized as low heat?
• What appliance classification is used when combustion temperatures are below 1000°F (538°C)?
• What is the consequence of using a flexible gas line where a rigid line is required?
• What does the term "gas pressure drop" refer to?
• Who is responsible for ensuring that gas appliances meet safety standards?
• What is the function of a gas appliance connector?
• In gas equations, which pressure type is not considered in low pressure calculations?
• In Alabama, what document must be obtained before installing gas appliances?
• What should be done with excess gas piping removed from a system?
• What must be ensured when providing combustion air through multiple openings?
• What should be done if a gas leak is detected during testing?
• Which pressure level is considered high for residential gas applications?
• What is a key feature of a gas fitter’s responsibility during installation?
• What is the proper procedure for repairing gas lines?
• Which material is commonly used for gas piping?
• What is the primary purpose of providing access to a device or appliance?
• What should be done if a gas odor is detected?
• What is the function of a gas meter?
• What hazard does propane pose compared to natural gas?
• How often should gas line pressure tests be performed?
• What is a common tool used to detect gas leaks?
• Which type of gas is commonly used for heating in residential settings?
• Which type of gas is commonly used in residential heating systems?
• What is the recommended way to detect a gas leak?
• What is the purpose of a drip leg in gas piping?
• What is a potential risk of using an appliance with a faulty gas line?
• What should installers check prior to connecting a gas line to an appliance?
• How does temperature affect gas pressure in pipes?
• What authority does a code official have regarding the provisions of the code?
• What unique characteristic does propane have compared to natural gas?
• What is the minimum burial depth below finished grade for underground gas service?
• What is the primary purpose of a gas pressure regulator?
• What is the required clearance between gas piping and electrical wiring?
• What is the maximum allowable working pressure (MAWP) for gas piping systems in most residential installations?
• What is the recommended color for a properly adjusted gas flame?
• What should you do if you suspect a gas leak?
• What minimum clearance should suspended-type unit heaters maintain from combustible materials?
• What must happen for a truss member to be altered?
• Which of the following is true regarding the installation of gas appliances?
• When a gas appliance is installed in a garage, the ignition source must be elevated at least how many inches above the floor?
• Which type of gas is commonly used in residential gas applications?
• What can cause a gas appliance to operate inefficiently?
• Which part of a gas water heater contains the hottest water?
• How do you calculate the BTU demand for a residential furnace?
• When is it permissible to use plastic piping for gas distribution?
• In which scenario are trenchless installation methods used for gas piping?
• What is the color code for type K copper tubing?
• What is the primary purpose of an emergency shut-off valve?
• In a bedroom, what is the maximum input rating for a single wall-mounted unvented room heater?
• When is it necessary to perform a gas line test?
• What does "purging" a gas line involve?
• What is the minimum size gas pipe that can be run to an appliance?
• What is a common consequence of improper installation of gas appliances?
• How often should gas appliances be serviced to ensure safety?
• What should be done if a gas leak is suspected?
• What is a primary safety concern when working with gas appliances?
• What is the primary purpose of a gas fitting?
• What is a common sign of a gas leak?
• What is the significance of gas codes and regulations in Alabama?
• What is the purpose of an emergency shut-off valve?
• What is the first step if you suspect a gas leak?
• Where must shut off valves be located when installing gas piping?
• What should be checked during an initial inspection of gas lines?
• What safety measure should always be taken when working with gas appliances?
• What is a key requirement for installing outdoor gas appliances?
• What is a gas appliance connector?
• What is permitted to convey combustion air within dwelling units?
• What is the minimum clearance required in front of an appliance when providing outdoor combustion air through a single opening?
• What tool is essential for detecting gas leaks?
• What should be done if gas service has been interrupted?
• How can one determine the appropriate size of a gas line in a residential setting?
• What must be checked for safety before lighting a gas appliance?
• A gas shut off valve should be located no further than which of the following?
• Why does propane require different fittings than natural gas?
• In a residential garage, appliances installed in an enclosed space must have access from where?
• What is the maximum length allowed for a connector or flex line?
• What effect does an improperly sized gas line have on a gas appliance?
• What is the purpose of proper ventilation in gas appliances?
• What should be the first step in responding to a gas leak emergency?
• What is typically needed to avoid pressure differences in combustion air supply?
• What is the minimum extension required for a protective steel plate over a notched or bored steel pipe?
• What practice is essential to prevent backdrafting in gas appliances?
• How can you determine the appropriate size of a gas line?
• What is an important precaution when testing gas lines?
• Which type of connection is discouraged when installing gas piping?
• What is the maximum allowable distance between a gas appliance and its gas supply line?
• Does a pilot burn continuously when using a spark ignitor?
• What action should be taken if a gas appliance does not operate at its rated efficiency?
• What type of valve is typically used to shut off gas supply in emergencies?
• What is the purpose of a gas shut-off valve?
• Which device is critical in ensuring safety by detecting gas leaks?
• Why is it essential to know the BTU rating of appliances?
• Why is it important to match gas pressure settings to manufacturer specifications?
• What is the purpose of a gas burner's orifice?
• What is the function of a draft hood in gas appliances?
• What is combustion air?
• What is the primary energy measurement used to define the performance of gas appliances?
• What is the role of the gas meter in a home?
• What is essential for the safe operation of combustion appliances in relation to air supply?
• True or False: Natural Gas is lighter than air.
• Which of the following can lead to a furnace backdraft?
• What is an appropriate action if the gas appliance shows signs of malfunction?
• What is the smallest diameter gas pipe that can be concealed?
• During gas installation, what is important to check for in new piping?
• What code must be followed when installing gas piping in residential buildings?
• What additional safety feature is often required for gas-fired appliances?
• When is a permit NOT required for installation?
• What regulations must be followed when converting an appliance to a different fuel gas?
• What is the minimum working pressure for residential natural gas systems in Alabama?
• What does a yellow or orange flame on a gas appliance indicate?
• Where should warning labels be placed on gas appliances?
• What is an important aspect of maintaining gas appliances?
• Which equipment is necessary to perform a gas line pressure test?
• Which factor increases the risk of gas leaks?
• What is the correct process for venting gas appliances?
• Which section of the fuel gas code specifically addresses the vents of appliances?
• What is the minimum slope required for a gas line installed underground?
• Which gas appliance maintenance should be prioritized for safety?
• What temperature threshold defines a low heat appliance?
• Which code governs the construction of galvanized steel ducts used for combustion?
• What is the maximum length of a flex connector on a furnace?
• What is an essential component of gas appliance installation?
• What is the purpose of venting in a gas appliance?
• What installation aspect is critical for ensuring gas safety?
• What is required when mechanical exhaust interferes with the operation of an appliance?
• What is the primary purpose of a gas regulator?
• What is a potential consequence of improper sizing of gas piping?
• What is the operating pressure limit for natural gas piping systems regulated by the IFCG?
• Which type of pressure is generally not applicable to low pressure gas use?
• What does the term "draft" refer to in the context of gas appliances?
• What safety device is used to prevent backflow in gas piping systems?
• What is the required pipe thickness for gas piping?
• What is the minimum clearance required between gas piping and electrical wiring?
• How should gas appliances be vented to prevent dangerous gas buildup?
• Which type of appliance is designed for combustion temperatures exceeding 1200°F (649°C)?
• What is the maximum input rating for a single wall-mounted unvented room heater installed in a bedroom?
• What does an effective gas line installation require?
• What is the purpose of a gas shut off valve?
• Why is it important to keep gas lines free of obstructions?
• How far should shut off valves be from gas appliances for accessibility?
• Why are pilot lights important in gas appliances?
• Which material is commonly used for gas piping installations?
• What code governs gas installation standards in Alabama?
• How should incompatible fittings be handled in gas piping?
• What is the typical method for checking for gas leaks?
• When providing outdoor combustion air through two openings, what must one opening begin with?
• What is the proper method for joining plastic gas piping?
• What is a common method for marking the location of underground gas piping?
• True or False: An underground gas pipe may be covered as soon as the air test is completed.
• Which of the following statements about truss members is accurate?
• Natural gas is primarily composed of which gas?
• How should gas line clearance be maintained around combustibles?
• What is the pressure of the weight of the air and water vapor on the surface of the Earth known as?
• According to the fuel gas code, how much space should be between the back of a refrigerator and the wall?
• What color is generally used for gas piping to indicate its use?
• In gas pressure systems, what does "creep" refer to?
• What is a common installation requirement for gas appliances?
• In terms of safety, what must be ensured when connecting gas appliances?
• Which tool is used to measure gas pressure?
• Which of the following describes a medium heat appliance?
• How is combustion air supplied to gas appliances?
• When ensuring combustion air, what structural feature is crucial in construction?
• A 4" diameter gas pipe requires purging with inert gas under what condition?
• Which equipment is essential for cutting gas pipes?
• What are the minimum dimensions for a level working space in front of a gas appliance's control side?
• What is one critical inspection point before turning on gas service?
• What is an anode used for in gas piping?
• What is the purpose of a regulator in a gas system?
• What is the requirement for gas appliance pressure setting?
• Which structural element must not be cut when installing gas piping or ductwork?
• When should a gas line be tested for leaks?
• What are the dangers of poor gas line installation?
• What is the typical color for propane gas service piping?
• What is required for a gas line to pass inspection?
• What material is not allowed for condensate drains?
• Which type of vent is used by a gas-fired toilet?
• What does BTU stand for in relation to gas fittings?
• In Alabama, what is the required distance from a gas meter to a window or building opening?
• What is the primary function of warning labels on gas appliances?
• How does temperature affect gas pressure in a gas line?
• What does the term "gas pressure test" refer to?
• Which standard is essential for the design and installation of gas piping systems?
• What is the primary purpose of a gas meter?
• What defines the combustion air necessary for a fuel?
• What should technicians be aware of when servicing gas appliances?
• What is the required vertical clearance above the cooking top for household cooking appliances?
• What is the importance of using a pipe dope or Teflon tape?
• Which tool is crucial for detecting gas leaks?
• What does a gas appliance's input rating indicate?
• What should you check if a gas appliance fails to ignite?
• What does a multi-turn shut-off valve allow for?
• What color is a correctly adjusted natural gas flame?
• What is the primary concern when installing gas pipes?
• What type of appliance installation does require a permit?
• What is the role of the National Fuel Gas Code?
• What safety item must be placed near gas appliances?
• What safety measure should be taken prior to working on gas lines?
• What is the initial response when a gas leak is detected?
• Why is a drip leg important in gas piping?
• Which factor is critical for the performance of gas appliances regarding combustion air?
• What materials are commonly used for residential gas piping?
• What is the maximum operating pressure allowed in a building for gas systems?
• Why is it important to adhere to manufacturer’s installation instructions?
• What is the minimum clearance required for the control side of a floor furnace?
• Which areas should appliances not be located in according to safety standards?
• How far from the top or bottom of a joist should notching be avoided?
• Which of the following statements is true regarding gas appliance installations?
• What safety measure is crucial before lighting a gas appliance?
• What is the impact of high humidity on gas line operations?
• What code requires gas piping systems to be marked?
• Where should a draft hood or barometric draft regulator be installed?
• Which factor could potentially affect the efficiency of a gas line?
• Which document serves as a guiding standard for gas fitting installation and maintenance?
• Which type of pipe is most commonly used for natural gas lines?
• Under what circumstance is a code official authorized to disconnect utility service?
• What is a common indicator of a gas leak in a home?
• What safety precaution should be taken when installing appliances that use gas?
• What does NFPA stand for, which provides standards for gas installations?
• Which federal body regulates gas transmission and safety?
• Name a common type of gas appliance in residential settings.
• What type of pipe is typically used for residential gas distribution?
• What is essential to verify before performing gas line repairs?
• What items are commonly included in a gas fitting toolbox?
• What kind of maintenance is critical for a gas system's reliability?
• How should a gas valve be positioned for it to be in the 'open' position?
• What is the specific gravity of propane?
• What is NOT a characteristic of low pressure gas equations?
• How many BTUs are in one therm?
• What is the purpose of restricting access to certain appliances?
• What does the abbreviation "BTU" stand for in relation to gas appliances?
• How often should gas appliances be inspected for safety?
• What action should a gas fitter take upon suspecting a gas leak?
• What does CSA stand for in the context of gas fitting standards?
• What is the common form of gas that propane is supplied in for residential use?
• How should gas fittings be oriented when being installed?
• How should a gas line be routed when it passes through walls?
• Why is it necessary to collect moisture from gas lines?
• What is the primary function of a gas service line?
• What is the maximum infiltration rate that can be used in the known air filtration method for indoor combustion air?
• What is a critical factor in ensuring the safety of gas installations?
• How frequently should the working pressure in a gas system be monitored?
• What is the role of a gas meter?
• What type of gas is typically used in commercial heating applications?
• What is the minimum dimension for an outdoor combustion air opening?
• What is the acceptable method for joining polyethylene gas piping?