Dealer Propane Practice Test

These questions are part of the practice quiz. Start practicing

• What should the cross-sectional area of the common vent be in relation to the cross-sectional area of the largest connector?
• Which material is NOT acceptable for use under service conditions for container appurtenances for LP Gas?
• What do integral two-stage regulators NOT incorporate in the high-pressure regulator portion?
• Forced draft systems must be designed to prevent what?
• What is the requirement for a type B-W gas vent in terms of its capacity?
• The filling connection and vent from liquid gauges on DOT or ASME containers must be located at least how far from a source of ignition?
• Why is regulated distance crucial near railroads when dealing with LP Gas?
• If outside, piping shall be under the vehicle and _______________.
• What safety feature is required for gas fired heating appliances to manage the gas flow during a pilot outage?
• How many inches of clearance must unlisted suspended-type unit heaters have from combustible material?
• When storing LP Gas and oxygen cylinders in the same area, what is critical regarding their containers?
• ASME containers and cylinders on vehicles utilized for other than engine fuel systems, shall NOT be ____________ inside the vehicle.
• What is the minimum height for a relief valve stack on containers with more than 2,000 water gallons capacity?
• Which shaft is listed as an inappropriate location for gas piping installation?
• What must be done to containers involved in a fire before they can be reused?
• Which of the following describes a requirement for venting systems in general?
• What must be replaced when a flanged joint is opened?
• What feature must portable heaters be equipped with to ensure safety in case of flame extinguishment or combustion failure?
• Under what condition may single-wall metal pipe vent connectors pass through ceilings, floors, or walls?
• In the case of regulators installed in buildings and vented outside, the discharge outlet must be how far horizontally away or below any building opening?
• What is the purpose of maintaining a distance of at least 50 feet from certain structures when transferring LP Gas?
• What is the minimum height a chimney must extend above the highest point where it passes through a roof of a building?
• What is the maximum amount of LP Gas that can be stored inside a specially constructed building?
• What is required for ventilating hoods and exhaust systems in commercial applications?
• Where should pressure gauges be installed in an LP Gas System at a bulk plant?
• Hoses conveying propane liquid and/or vapor at pressures greater than 5 psig must be marked with what?
• Which material is permitted for piping in propane installations?
• Which of the following items should NOT be included in gas venting systems?
• Gas piping serving heating gas appliances is permitted to also serve what other type of equipment?
• All _________ equipment and components that are buried or mounded shall be coated or protected and maintained to minimize corrosion.
• What is the term for air that passes through the combustion chamber in excess of that required for complete combustion?
• What is the minimum distance a draft hood relief opening must be from any surface except that of the appliance it serves?
• What is the primary purpose of the exit terminals of mechanical draft systems concerning public safety?
• What type of devices must steam and hot water boilers have to prevent their operational limits from being exceeded?
• What is a primary safety feature required for propane systems in the event of a malfunction?
• What is the required distance for a single-wall metal pipe to be higher than any portion of a building within a horizontal distance of 10 feet?
• Buildings with non-fire resistive walls should be located how far from a point of transfer?
• What term describes a compartment connected to ducts that is part of the air distribution system?
• What is a key attribute of a type B-W gas vent?
• What is the key characteristic of Type 1 clothes dryers?
• What is the suitable working pressure for fittings used with vapor LP Gas at pressure not exceeding 125 psig?
• What is the maximum allowable length for hoses used on the low-pressure side of a regulator to connect to appliances other than domestic and commercial?
• Gas-fired toilets installed on combustible floors must be what?
• What is considered the point of transfer during the liquid LP Gas transfer process?
• What is the maximum time limit for a temporary LP Gas installation according to NFPA pamphlet #58?
• What is the proper method for venting propane appliances?
• Where should ASME Connections for pressure relief valves be installed to ensure safety?
• What type of containers must be treated as full containers even when empty?
• Which of the following shall NOT be used to test for gas leakage?
• A vent connector shall NOT be connected to a chimney flue serving a fireplace unless the fireplace flue opening is _____________.
• According to the Two Permanent Openings Method, what is the maximum distance one opening must commence from the top of the enclosure?
• Which of the following is NOT a type of fitting allowed for gas installations in concealed areas?
• What alternative can adequately protect bulk storage plants aside from fencing?
• What is the maximum individual capacity allowed for service station containers?
• What is the minimum clearance required for an unlisted pool heater on all sides and the rear?
• Which of the following actions is a legal requirement for a new gas supplier taking over an account?
• With regard to the indoor use of nonmetallic gas hose connectors, an equipment shutoff valve shall be installed where the connector is ________.
• Which of the following is a recommended practice when installing LP Gas appliances?
• In construction or repair, what is the maximum total water capacity of manifolded containers serving any one heater?
• What type of venting system shall be used for listed vented wall furnaces?
• What should happen to containers involved in a fire if they are made of aluminum or composite?
• Appliances and equipment must be furnished with load distributing bases or a sufficient number of what to prevent damage?
• Which of the following is true about the use of LP Gas in classroom demonstrations?
• A pressure test shall NOT be less than what value regardless of design pressure?
• A liquid transfer hose equipped with a shutoff valve at the discharged end must have what installed in the line?
• What should LP Gas dealers provide to customers?
• Where a container is to be abandoned underground, as much liquid LP-gas as possible shall be _________ through the container liquid withdrawal connection.
• Which regulatory agency dictates how LP Gas and other compressed gases should be marked when stored together?
• Which agency is primarily responsible for the regulation of propane in the United States?
• Containers used in a public building undergoing minor renovations shall NOT have more than a maximum propane capacity of ______________ and the number of cylinders shall NOT exceed the number of workers assigned to use the LP gas.
• At what minimum bursting pressure should hose used for LP Gas liquid transfer be rated?
• What marking is required for hoses designed for LP Gas transport?
• What is the correct spacing of supports for 3/4" or 1" steel pipe?
• A chimney for medium-heat equipment must extend a minimum of how many feet higher than any portion of a building that is 25 ft tall?
• In terms of installation requirements, mechanical draft systems need to be?
• What is the minimum distance smoking or open flames must be kept from the point of LP Gas transfer?
• Which valve must be installed in sections of piping to ensure liquid propane can be safely vented?
• Prior to acceptance and initial operation, what must be done to all piping installations?
• When is it necessary to chock the wheels of an LP Gas bulk truck or transport?
• Which type of valve is required on liquid transfer hoses for safety regulations?
• What requirement exists for aboveground containers?
• What is the minimum rated working pressure for container appurtenances?
• What is a primary safety feature for LP Gas handlers during delivery?
• Which appliances are NOT required to be vented?
• How many piers are required to support LP Gas bulk storage tanks of 4,000 gallons or more?
• What characterizes a Category I vented appliance?
• How should empty containers that have been picked up be treated?
• A vertical distance of NOT less than how many inches must be maintained between hot plates and combustible material?
• For safety, what clearance distance should be maintained around LP Gas storage areas?
• What is the recommended frequency for tank inspections in LP Gas operations?
• The initial boiling point of commercial propane at 14.7 psia is __________.
• Metallic pipe joints shall be permitted to be ____________ using proper pipe and fittings.
• What should be done if a cylinder has an expired requalification date?
• Hose length at a motor fuel dispensing station may NOT exceed what length unless approved by the AHJ?
• What is the recommended procedure for evacuating an underground tank?
• What is the maximum allowable pressure for propane gas containers?
• A listed __________ shall be installed at the discharge end of the transfer hose at vehicle fuel dispensers.
• Which procedure should NOT be used to check the integrity of a propane piping system?
• When using LP Gas in classrooms for demonstration, what is the minimum distance required between containers?
• Protection of appurtenances of portable containers, skid tanks, and tanks for use as cargo tanks of more than __________ shall be protected from physical damage.
• In a mechanical draft venting system, how far must it terminate below, horizontally from, or above any door or operable window?
• Fittings used at pressures higher than container pressure on the discharge of the liquid transfer pump should have a working pressure of at least what?
• According to standards, how should commercial-industrial-type incinerators be vented?
• Who may inspect a gas industry to ensure public safety during reasonable business hours, aside from the Deputy State Fire Marshal?
• Under normal operating conditions, what is the maximum discharge pressure for a liquid pump?
• What type of air intensity should be ensured for appliances during operation?
• What is the purpose of a fixed liquid level gauge on LP Gas containers?
• From what point should distances for underground or mounded ASME containers be measured?
• What is the recommended distance that a vent connector should slope upward?
• What is the maximum water capacity of an LP Gas container on an individual forklift?
• A system being leak tested should show no increase or decrease in the pressure reading for a period of ______________.
• What type of air provision is required for Type 2 clothes dryers?
• Equipment connected to a piping system must have an accessible approved manual shutoff valve with what feature?
• Cylinders used with commercial food service appliances inside restaurants shall be permitted provided there are no more than _________ 10 oz. non-refillable containers, each having a maximum capacity of 1.08 lb.
• In terms of propane safety, what is the primary hazard associated with leaks?
• What is the purpose of a vapor recovery system in LP Gas operations?
• What should not be installed in residential board and care facilities?
• Type 1 and Type 2 clothes dryers should be exhausted to which location?
• What is the maximum weight for a portable refillable LP-gas cylinder that requires a warning label if not filled on site?
• The _______ employed for operating the automatic main gas control valve shall be in accordance with the wiring diagrams certified or approved by the original appliance manufacturer.
• Cooking appliances should be installed so that the cooking top or oven racks are:
• What method should be used for making changes in direction of gas pipe?
• Re-circulating direct gas-fired industrial air heaters shall NOT ____________ in buildings that contain flammable solids, gases, explosive materials, or substances that may become toxic when exposed to flame.
• Before delivering, LP gases must be odorized with a warning agent down to a concentration in air of not over what fraction of the lower limit of flammability?
• What is the maximum capacity of LP Gas allowed in a building undergoing minor renovations during normal work hours per worker?
• Why is the LP Gas Dealer required to have their name permanently affixed to their tank at a customer location?
• Which type of gas appliance must have devices to shut off gas flow if the pilot flame goes out?
• What is the minimum bursting pressure required for hose used for LP Gas liquid transfer?
• How many pressure relief device(s) must ASME containers be equipped with at a minimum?
• Before installing appliances in a mobile home, what type of approval should be obtained?
• Which method should be used to measure the distance for pressures of ASME containers?
• What should temperature sensitive elements of emergency shutoff valves NOT be?
• For ASME containers, how many pressure relief devices should they have at a minimum?
• At what temperature does Liquid Propane vaporize?
• Which types of fittings are allowed to be installed in concealed locations?
• When using LP Gas heaters in buildings under construction, how far should they be located from the container?
• What material should be resistant to the action of liquefied petroleum gas in piping?
• Which document is crucial for compliance in LP Gas operations?
• What should be done if leakage is indicated during a gas test?
• What is the maximum capacity for individual LP-gas containers used on non-passenger carrying vehicles?
• What is the minimum distance required from external exposures for a 500 gallons water capacity tank heater?
• Regarding indoor combustion air, which method states the minimum volume shall be 50 cubic feet per 1000 Btu/hour?
• Is it permitted to stack containers one above the other?
• What is the minimum height for exit terminals of mechanical draft systems located adjacent to public walkways?
• What is the minimum cover that should be maintained over all underground metallic piping?
• What must be provided for a water heater installation?
• For vent connectors, what is the maximum horizontal length allowed for each inch of connector diameter?
• What must indirect vaporizers be equipped with to prevent liquid from passing through?
• What is the purpose of a hydrostatic relief valve in an LP Gas storage facility?
• Which of the following is NOT a means of closing the emergency shutoff valve?
• What is the maximum inside diameter for transfer hoses used to fill individual containers indoors?
• Flexible metallic connectors shall NOT exceed what length when used with liquid or vapor piping on stationary containers of 2000 gallons or less?
• What must be located to ensure it does not interfere with proper air circulation for combustion?
• How should cooking appliances be leveled during installation?
• What is the minimum legal distance required between the point of transfer of LP Gas and a building with fire-resistant walls?
• Why must LP Gas tanks be stored upright?
• What is the maximum outlet pressure setting for single-stage regulators?
• How much higher must a chimney extend above any portion of a building within a horizontal distance of 10 feet?
• A vent connector must be installed without any dips or sags and should slope upward at least:
• How many means of closing are required for emergency shutoff valves?
• What does a marking of 4E240 on a cylinder signify?
• What is an acceptable test medium aside from air and nitrogen?
• What is the minimum thickness of cover required for underground piping in LP Gas installations that are unlikely to suffer external damage?
• What do we call the pipe or duct that connects a fuel gas burning appliance to a vent or chimney?
• What is the required melting point for brazing filler material used in tubing joints?
• What is the main reason for design regulations in DOT containers?
• How often must the pressure relief valve in industrial trucks, such as fork lift containers, be replaced after the initial date of manufacture?
• NFPA pamphlet #54 prohibits the installation of unvented space heaters in which area?
• What is the maximum propane capacity allowed for manifolded cylinders used in industrial settings?
• Immediately after turning on the gas in a new system, what should be done?
• The transfer of liquid into containers mounted on vehicles shall NOT take place ____________ but shall be permitted under a weather shelter or canopy.
• In vertical vent upsizing, the flow area of a vertical vent must not exceed how many times the flow area of the listed appliance vent area?
• What is the maximum pressure limit for polyethylene piping used for vapor transfer only?
• What is described as gas piping that would require removal of permanent construction to gain access?
• When should the sniff test for odorization be performed?
• What is the minimum requirement for emergency access at bulk storage plants protected by a six-foot-high fence?
• In the event of a vehicle collision involving an LP Gas transport, what is the emergency response recommended?
• A new piping system may NOT be tested with which gas?
• Which working pressure rating is required for fittings used with liquid LP Gas at pressures over 125 psig?
• How far must a mechanical draft vent terminate from gravity air inlets into any building?
• All installations of LP Gas on roofs of buildings must be reported to which agency?
• At what pressure is the piping system of an LP Gas installation tested?
• What is the term for the draft produced by the difference in weight of flue gases within a chimney?
• What is the maximum discharge pressure allowed for liquid pumps used in LP Gas systems?
• Where containers fabricated to earlier editions of regulations are to be used, they shall be __________ if they have been properly maintained and requalified.
• How far must the discharge from a container pressure relief device be from any openings?
• Which type of valve is typically used for outdoor propane storage?
• Mechanical draft systems must be what?
• What precaution should be in place to prevent liquid from going through indirect vaporizers?
• In terms of safety, what is an essential distance between heated appliances and combustible materials?
• The maximum water capacity of cylinders that requires special protection against physical damage is?
• What should uninsulated single-wall pipe NOT be used for in cold climates?
• Which safety standard must be adhered to when designing venting systems in residential gas appliances?
• For individual LP Gas containers not used on passenger vehicles, what is the maximum allowed capacity?
• What is a fixed liquid level gauge that indicates the maximum filling limit of a container called?
• What is the minimum legal distance required between the relief valve on an ASME container of 125 water gallons or less capacity and a building opening below the level of the relief valve discharge?
• Aboveground containers with a capacity of 501 to 2,000 gallons must be located how far from a building?
• Polyethylene piping systems shall be limited to vapor service not exceeding what pressure?
• According to regulations, DOT containers must comply with which code for design and fabrication?
• What additional measure is critical for piping installations that may experience condensation?
• What must be installed in piping sections to relieve pressure from trapped liquid LP-Gas?
• What must be done when a container is to be abandoned underground?
• How high must a single-wall metal pipe extend above the highest point when passing through a roof of a building?
• What personal protective equipment (PPE) is recommended for LP Gas handlers?
• There is to be NO fuel connection between a tractor and __________.
• According to South Carolina's laws regarding retail propane sales, the seller must possess what?
• When measuring distances from a container pressure relief valve, what direction should the distance typically be measured?
• What is the lower flammability limit of propane vapor?
• How long must the container pressure relief valve be replaced in cylinders used in industrial truck service after the date of manufacture?
• What is required for fittings used with vapor LP Gas?
• Which materials are acceptable for construction of foundations for dispensers?
• On what type of foundation shall all dispensers be installed?
• What is the maximum capacity for LP Gas fuel containers used on passenger carrying vehicles?
• What is the design pressure required for ASME containers installed in enclosed vehicle spaces?
• Which material is specifically mentioned as being unsuitable for use in metallic pip and tubing applications?
• Listed floor-mounted food service equipment must be installed at least how many inches from combustible material?
• What is the maximum individual water capacity for general use containers?
• At what intervals should relief valves on containers over 2,000 water gallons be tested?
• In which type of occupancy should room heaters not be installed?
• When pressure testing a single family dwelling, how long should the pressure reading remain stable?
• In a residential gas appliance vent system, which connector position is preferred when multiple connectors are used?
• What type of fire extinguisher is required for industrial plants with LP Gas storage containers?
• In addition to a license, what else is required for sellers of propane in South Carolina?
• A chimney must extend at least how many feet above the highest connected equipment draft hood outlet?
• For installations with a capacity of 4,000 gallons or more, what must be installed with a common manifold liquid line of 1.5 inches or larger?
• What is the main function of a safety pilot on an LP Gas appliance?
• What is the maximum size opening for bypass on excess flow valves?
• What is required for appliances to effectively handle combustion, ventilation, and dilution air?
• Which method is considered unacceptable for checking a propane piping system for leaks?
• What type of protection should cylinders of 1,000 lbs water capacity or less have against physical damage?
• Which type of pipe fittings should NOT be used for metallic pip and tubing?
• How high must all bulk storage plants be enclosed within an industrial type fence?
• What is an important consideration when delivering LP Gas?
• What does ASME code refer to?
• Unlisted air-conditioning appliances shall be installed with clearances from combustible material of NOT less than what distance?
• What type of training is necessary for employees working with LP Gas?
• The installation of containers on the roof of any structure is ____________ unless approved by the authority having jurisdiction and the fire department.
• What type of fittings must NOT be used in concealed locations?
• Containers installed outside of buildings shall be located with respect to the adjacent containers, ____________, or group of buildings.
• ____________ are appliances that are constructed and installed so that all air for combustion is derived directly from the outside atmosphere and all flue gases are discharged outdoors.
• During the hours the public is permitted in a building undergoing minor renovations, what is prohibited regarding cylinders?
• For LP Gas appliances, what aspect is crucial for safety during operation?
• What type of vent pipe is required for an LP Gas wall furnace with a capacity in excess of 50,000 BTU?
• When extending a gas vent through an exterior wall, how should it terminate relative to eaves or parapets?
• When can an authority apply portions of the code retroactively?
• In a piping system where vapor condensation can occur, how should the piping be arranged?
• The sediment trap shall be installed as close to the inlet of the equipment as practical at the ________.
• What minimum cover is required for polyethylene and polyamide piping installed outside and underground?
• NFPA 54/ANSI Z223.1, National Fuel Gas Code, shall be administered and enforced by _____________ designated by the governing authority.
• Fuel containers shall be ____________ to prevent jarring loose.
• What method can be used to re-supply a permanent fuel container located on a rooftop?
• In addition to being listed for installation, what is another requirement for some gas appliances?
• What should no portion of a venting system extend through?
• Where must industrial trucks with permanently mounted fuel tanks be refueled?
• What is the purpose of automatic devices installed in gas fired heating appliances?
• What is the minimum distance between the point of transfer of LP Gas and the centerline of the nearest mainline railroad track?
• What is the purpose of pressure relief valves in LP Gas storage?
• Which item is prohibited from being installed in or attached to walls of combustible material?
• What is the minimum legal distance between the point of transfer of LP Gas and an outdoor place of public assembly?
• What is the minimum vertical clearance required for household cooking appliances above combustible materials?
• What does the term 'point of transfer' refer to in propane regulations?
• What do we call the air that mixes with flue gases in a draft hood or regulator?
• According to safety standards, what must be monitored to manage steam pressure levels in boilers?
• How should regulators for outdoor installations be designed or protected?
• In case of a fire at a bulk storage plant, what is the recommended immediate action to take?
• What must be avoided in cold climates when using single-wall pipe?
• What is the maximum length of a flexible component connector used in a bulk plant piping system?
• What is the purpose of keeping above-ground LP Gas containers painted with a bright reflective paint according to NFPA Pamphlet 58?
• When two or more vent connectors enter a common gas vent, which connector should enter at the highest level?
• All air handled by a non-circulating direct gas-fired industrial air heater must be ducted from where?
• What should fittings at the discharge of a liquid transfer pump be suitable for?
• Which of the following is prohibited for gas piping installation within a building?
• What is the required minimum distance between outdoor propane storage and buildings?
• What is required to permanently seal the annular spaces around penetrations for vents through outside walls?
• What is a common sign of an LP Gas leak?
• Containers must be designed and tested according to which codes?
• What safety component is essential for the protection of a water heater during installation?
• Single-wall metal pipe shall not originate in any ___ and shall NOT pass through them:
• If a safety shutoff device does NOT function properly, what should be done?
• What kind of fire safety equipment is essential for industrial facilities using LP Gas?
• What is the maximum LP Gas water capacity container allowed to be connected to a manifold at a permanent installation on a roof?
• What is the maximum design operating pressure for piping systems located inside buildings?
• In piping systems, how should the piping be run from one point to another?
• Which component is necessary for gas appliances to ensure proper installation and operation?
• What is the maximum melting point allowed for emergency shutoff valves with a fusible element?
• Which type of heater does NFPA pamphlet #54 restrict from being placed in bathrooms?
• A type B-W gas vent must terminate at least how many feet in vertical height above the bottom of the wall frame?
• How far must the vent pipe of an LP Gas space heater be extended above the roof crest?
• What type of materials should equipment be fabricated from in service with LP-gas?
• To safely store or service a vehicle powered by LP Gas inside a building, what is required?
• What is the purpose of load distributing bases in appliance installations?
• Who is responsible for ensuring that DOT cylinders and containers for LP Gas are requalified?
• When a dealer takes over another dealer's account, what is NOT a legal requirement of the new gas supplier?
• Which type of heaters must comply with specific installation standards to be used in areas with combustible materials?
• What is the primary purpose of installing venting systems in commercial settings?
• What should be done in case of an LP Gas leakage?
• Type B-W gas vent must terminate at least how many feet in vertical height above the bottom of the wall furnace?
• Field welding on containers shall be limited to attachments on ____________ installed by the manufacturer.
• How far must listed equipment with a draft hood be from combustible materials when installed in a single-wall metal pipe?
• What is the required ratio of Ethyl Mercaptan in 10,000 gallons of LP Gas?