Maine Fuel Code Journeyman Practice Exam

These questions are part of the practice quiz. Start practicing

• What does a combustion analysis measure in gas appliances?
• What is the maximum height for legs on an inside oil tank installed on a finished cement floor?
• What must be installed if an oil line passes through a wall?
• What is the minimum burial depth for underground gas piping?
• What must be checked regularly for a waste oil burner?
• What must be obtained if a thermally operated valve larger than 1/2" is used?
• How frequently should gas lines be checked for proper labeling?
• What is the purpose of a secondary containment system for fuel oil tanks?
• What is the required installation position for safety and pressure relief valves on boilers?
• What is the maximum spacing allowed for supports on 3/4" copper piping?
• What must be brought into compliance with the rules before firing a new oil burner?
• What is the requirement for the installation of branch circuit overcurrent protection by a Journeyman Technician?
• What is the maximum capacity of a mini-split heat pump that a Journeyman Technician may install in a one or two-family dwelling?
• How should emergency shut-off valves be marked?
• Which type of fittings shall not be used on supply or return lines unless certain conditions are met?
• How often should gas appliances be inspected for safety?
• What is the primary function of a vent alarm on an oil tank?
• Where should thermal cutoff switches be placed?
• When installing an oil storage tank, which factor is most critical for safety?
• What is the requirement for vent alarms on outside oil tanks?
• What is the minimum clearance under an outside oil tank to any surface?
• What is required at the intersection of vent piping when installing multiple tanks with separate fill pipes?
• What does the Maine Fuel Code aim to ensure in fuel gas installations?
• What is the next oil burner exam taken after exams 4, 5, and 6 oils?
• What details should be included in a gas installation plan?
• An oil supply line under concrete must be continuous and without what?
• Are shims allowed on tank legs to level the legs if they are made of steel?
• A thermally operated shutoff valve is typically used for which purpose?
• What is a requirement concerning supply line extension from a single oil tank?
• What is the rule regarding oil tank patches?
• Outside oil tank supports shall not be made of which material?
• Where must the low water cutoff be installed?
• What is a key responsibility of a journeyman in fuel gas installations?
• What is a significant factor contributing to carbon monoxide production in gas appliances?
• How is proper gas pressure regulated in a residential system?
• Why is having a shut-off valve important in gas installations?
• What is the required method for securing gas lines in overhead installations?
• What is the acceptable installation height for the vent termination of a gas appliance?
• What should be done if non-compliant gas piping is discovered?
• What part of an oil tank installation must be protected from falling snow and ice?
• What must be removed when taking an oil tank out of service?
• When can metallic piping be used for fuel gas installations?
• When are vent alarms required for inside oil tanks?
• What is the recommended method for purging air from new gas lines?
• How should gas appliances be positioned in relation to combustible materials?
• Which type of piping is required for manifold installation according to the regulations?
• What must homeowners do when they perform gas installations without professional help?
• When installing gas appliances, what is a vital consideration regarding safety?
• Whenever an outlet of an oil supply tank is located more than 4 feet from the burner, which valves are required?
• What must be done if a gas appliance is to be relocated?
• What type of filter is recommended for gas service?
• What is the primary purpose of an oil filter in a burner system?
• How must inspections and installations be characterized according to Maine Fuel Code?
• Which component is primarily responsible for controlling the fuel flow in an oil burner?
• When installing gas piping, what is the allowed length of a flexible connector?
• Which component must always be protected from snow and ice during oil tank installation?
• According to Maine Fuel Code, oil tanks must be disposed of in accordance with what?
• What materials are acceptable for gas piping in residential applications?
• When is a heat loss calculation required?
• What is typically required for combustion air in oil burning systems?
• What is the requirement for spacing regarding existing interior and exterior chimneys when replacing oil or gas fired appliances?
• What is the maximum height for the conduit end from the connection at the fuel tank?
• What is the required thickness of the vertical oil tank pad?
• What is the first restriction when installing a manifold at the cross connection of the burner supply lines?
• What type of repair is allowed for leaking oil tanks?
• How is the size of gas piping determined in a residential system?
• What color is commonly used for propane piping according to the Maine Fuel Code?
• What size must the conduit be in relation to the supply and return lines?
• No oil supply or return line shall be concealed in a wall, ceiling or partition unless access to the oil supply or return line can be made without what?
• If there are underground lines connected to an unused oil tank, what must be done with them?
• When a Master Technician sub contracts work to another Master Technician, who is responsible for the work?
• What must be done to ensure the removal of a fuel supply tank does not affect safety?
• What are the two main types of gas meters?
• Does the Maine fuel board adopt chapter 14 of NFPA 211 regarding chimney inspections?
• Who is responsible for ensuring the chimney repairs are completed within the 90 days?
• What size vent is required for a waste oil tank?
• What are the specifications required for steel bollards used for vehicle protection for oil tanks?
• Before placing a furnace, direct fired water heater, or boiler in service, what must be done?
• What does MFC specify about the installation of oil tanks regarding support on unfinished floors?
• What should be done if gas leaks are detected?
• When is it safe to perform maintenance on gas appliances?
• What device helps to regulate the temperature in a fuel oil burner?
• What does a gas appliance’s “input rating” signify?
• What is one common safety hazard associated with gas installations?
• What should occur to the fill pipe when a customer is converting to an alternative fuel?
• Which type of joint is commonly used for metal gas piping?
• Who must maintain a copy of a heat load calculation?
• What is a common method for detecting gas leaks?
• Which aspect is essential in a gas installation plan layout?
• What must not be installed between the boiler and safety device/control?
• What options are available for supporting an inside oil tank on unfinished floors?
• What safety devices are mandated for gas-fired heating systems?
• What is the proper process for documenting gas installation work?
• How high must safety and pressure relief valves terminate inside a building?
• What is the minimum required distance for a chimney from combustible materials?
• For a single oil tank installation, what is the maximum length that the oil line can extend beyond the tank?
• What is a journeyman's responsibility concerning gas lines during an inspection?
• What must be done if a chimney is to be waived?
• Under what circumstances is welding residential warm air heat exchangers allowed for repair?
• Can a licensed Journeyman perform a cleaning on a wood/oil combination unit without direct supervision?
• What is one required characteristic of gas appliance installations?
• When is it necessary to use a tracer wire for underground gas piping?
• What does the Maine Fuel Code specify about horizontal venting of gas appliances?
• All fuel supply tanks must be a minimum of how many feet away from any gas and/or solid fuel burning appliance?
• What chapters and sections of NFPA 31 are not adopted by Maine?
• What type of efficiency test must be conducted during an annual tune-up?
• What is the maximum distance allowed for the last fitting from the face of the tank in a manifold installation?
• What parameters are crucial for designing gas piping systems?
• What does a licensed journeyman need to perform cleaning on a wood/oil combination unit?
• Which organization is responsible for adopting and enforcing the Maine Fuel Code?
• How many apprentices can a journeyman directly supervise?
• When are qualified gas appliance technicians required to test for carbon monoxide?
• If a tank pad is used for an inside oil tank installation on unfinished floors, what is the required thickness of the tank pad?
• All copper oil supply and return lines must be encased in what type of conduit?
• Which type of fitting is acceptable for the introduction of supply or return lines at the top of the tank?
• What is the primary purpose of the Maine Fuel Code?
• The interconnection of solid fuel and oil burning appliances must comply with what?
• If access to the boiler room is only from the outside, where should the emergency switch be placed?
• What is the purpose of using flexible corrugated stainless steel tubing in gas piping?
• Which is the minimum height the ends of the conduit must penetrate above grade?
• Where must a thermally operated valve be installed when inside tanks are placed in a separate room?
• What must be verified before installing any heating appliance?
• What should be included in a fuel gas installation inspection checklist?
• According to the regulations, how must all vent alarms be installed?
• What does the acronym BTU stand for in relation to fuel gas?
• What can happen if a regulator is not functioning properly?
• What is the purpose of a gas quality test?
• What is the minimum clearance required under an inside oil tank from any surface?
• What is the purpose of a condensate trap in gas appliances?
• What is required if a furnace and a water heater must vent into an inadequate chimney flue?
• What must be conducted during an annual tune-up on a heating system?
• Which element is important to check during a gas line pressure test?
• What must coated copper tubing be secured with to prevent damage?
• What must be conducted before replacing an existing boiler system?
• What is the minimum clearance required for combustion air intake?
• What is essential to check before re-energizing a gas system after repairs?
• What does Appendix A of the Maine Fuel Code cover?
• What is the minimum capacity for which vent alarms are required on outside tanks?
• What action should be taken if a thermally operated valve needs to be replaced?
• What is prohibited in the return line connected to a burner or pump?
• Horizontal outside oil tanks must be mounted on steel pipes that have a maximum height of how many inches?
• What edition of NFPA 31 does the Maine fuel board adopt?
• Which of the following is necessary when removing an oil tank from service?
• What is the required action if any code violations are found during service work?
• Which type of piping is prohibited for underground gas distribution?
• What must be done to unprotected lines that are buried or grouted?
• What can be used to defer repairs for a chimney in an emergency situation?
• What does the term "interlock system" refer to in gas appliance installations?
• What type of test must be performed and posted on-site during an installation?
• For which situation is a double-walled tank typically required?
• Which of the following materials is not acceptable for gas piping?
• When are shims allowed to be used on oil tank legs?
• What is the minimum pressure required for testing new fuel gas piping?
• Which of the following must be included when updating wiring for a new oil burner installation?
• Why is slope important in gas piping installations?
• How often should the gas lines in older homes be inspected?
• What safety device is essential for a fuel oil burning appliance?
• When can the bottom clearance of a vertical outside oil tank be reduced and what is the minimum clearance when reduced?
• What would typically indicate the function of an emergency shut-off valve?
• What is the requirement for venting gas appliances?
• What is the minimum distance a gas meter must be from an opening into a building?
• What is mandatory for any repairs to warm air heat exchangers?
• What is required for a graduate of a Maine fuel board approved course on oil burning equipment to set for the journeyman exam?
• What positioning is required for the thermal cutoff switch relative to the unit?
• Which types of fuel are addressed by the Maine Fuel Code?
• If a customer is converting to an alternative fuel and leaving the oil tank, what must remain intact?
• Who is primarily responsible for the enforcement of gas safety regulations in Maine?
• How must all work be conducted according to Maine fuel code standards?
• Why is it important to label gas lines correctly?
• Which type of appliance venting requires special precautions for safety?
• What should be the training focus for individuals working under the Maine Fuel Code?
• What is a key feature of direct vent appliances?
• What is necessary when a chimney waiver is required and who needs to sign it?
• What is the minimum distance required between an aboveground fuel tank and a building?
• Which of the following is a requirement for mounting horizontal outside oil tanks?
• When performing service work on a heating system, what must the licensee notify the homeowner of?
• A Journeyman Technician is allowed to install a branch circuit which includes what?
• What should be avoided when marking emergency shut-off valves?
• The end of the conduit for an oil supply line shall not exceed how many inches from any fitting?
• What must be installed at the tank when coated copper tubing is used underground?
• What is one responsibility of the journeyman during the gas piping installation process?
• Why are appliance installation instructions critical for journeymen?
• What must be installed where an outside tank supply line enters a building?