Maine Propane Tank Setter Practice Test

These questions are part of the practice quiz. Start practicing

• How many regulators are typically required for two-stage vapor systems?
• What device is required on the vapor equalizing connection when the filling opening is 1 1/4 inch or larger?
• Which device generates rotation signals for electronic data systems in a propane metering setup?
• The most common method for joining steel and wrought iron pipes in residential and small commercial installations is
• Upper and lower flammability information is found in which resource?
• Following your inspection, the removal of any nitrogen or inert gas, the removal of any foreign materials from the transfer system and container, and that all valves have been closed, lp-gas _____ not _______ may be slowly introduced into the transfer system and the container
• In a meter system, the rotation pulses used for electronic data generation are provided by which device?
• NFPA 58 allows for various materials and piping joints (threaded and welded) to be used in respect to liquid piping in dispenser stations; one type of piping that cannot be used for liquid piping is?
• Which code is referenced for interior gas piping and venting in the material?
• Which standard contains information about propane vaporizers?
• What is the maximum pressure setting for a second stage regulator in propane systems?
• One of the items required for compliance with NFPA 58 vertical tank installation provisions is?
• Two additional ASME tank fittings (devices) required for ASME tanks over 4,000 gallons water capacity that are not required by NFPA 58 for ASME tanks typically used to supply propane dispenser are a ______.
• Determining the ________ and a good estimate of the weekly propane usage will lead to a better dispenser design and installation.
• Where can you find information on tank locations?
• Which publication would you consult to verify licensing authorities and limitations for propane operations in Maine?
• Where should a dielectric union be located in the system?
• The meter components required to prevent vapor from entering the meter before or during liquid transfer are:
• How far must a propane dispenser be from the remote emergency shut off?
• What is Step 1 in the leak test procedure for tanks?
• Which test is used to detect leaks after installation or modification of piping?
• What is the minimum distance from a propane dispenser to the remote emergency shut off?
• Selecting the proper size tank for the dispenser installation for high volume installations is crucial for ______.
• The valves and fittings required by NFPA 58 for ASME tanks typically used to supply propane dispensers include a double backflow check filler valve, a spring-type relief valve, a fixed maximum liquid level gauge, and a _______.
• To whom must a Fire Safety Analysis or incident preparedness review be submitted when required by authorities?
• When the transfer pump is operating and all transfer valves are open, if the supply tank and pump inlet pressures remain the same; the pump outlet pressure rises to its normal lever or above; and meter pressure is substantially above supply tank pressure, but there is no flow, the condition is probably due to a defect in the vapor eliminator or the ________.
• What is the liquid specific gravity of propane?
• What does the consumer safety cylinder requalification decal indicate on a propane container?
• Which standard provides guidance on how much propane can be stored inside a building?
• Cathodic protection readings must be at least how negative?
• How do you secure anode to the tank?
• The test pressure required by NFPA 58 when testing dispenser piping for leakage is at:
• Should you use pipe thread-sealing compounds on the seats of brass flare fittings?
• NFPA 58 requirements for aboveground lines, polyethylene PE pipe, tubing, and fittings are allowed in aboveground line installations.
• What actions should you take when excavating underground tanks and piping?
• When installing CSST, what should be kept in place to protect the tubing from corrosion?
• Standard mechanical propane liquid meters can be equipped for electronic data generation for use with electronic ticket printing, self service dispenser display panel operations, or remote electronic accounting systems by adding a _______.
• Where a propane motor fuel dispenser is installed at a multiple fuel refueling station, the provisions of _______ apply.
• What is the maximum interior piping design pressure for buildings?
• What type of appliances can use a single-stage regulator?
• How many regulators are required for two stage vapor systems?
• The maximum design operation pressure for piping systems located inside buildings cannot exceed _____ except in limited circumstances.
• When installing CSST _____
• What is the air to propane ratio?
• What is the primary purpose of cathodic readings for underground propane tanks?
• What will result if the vapor return line on a metering station is not open?
• Effective system load is used to determine the amount of propane required to operate appliances at a reduced demand and assumes the customer's appliances are:
• Pigtail connectors are used with ______ regulators
• What is the boiling point of propane and what reference should be used to verify it?
• All piping layouts for vapor distribution systems require more than one second stage regulator
• NFPA 58 limits the maximum aggregate water capacity for tanks supply dispensing stations not located in a bulk plant or industrial plant to no more than ______ gallons.
• To place an underground LP-GAS tank into service, which steps are required?
• Which installation practice should be avoided when installing a flexible connector to protect a pump from stress created by piping?
• What type of piping material can be used according to NFPA 58 for the liquid piping system in dispenser
• A leak test is performed after a leak is identified in a system, and it is performed ______ the test for leakage, pressure test, or leak check.
• Where can you weld anode to tank?
• Which statement correctly describes the pipe schedules' pressure ratings for typical propane piping?
• NFPA 58 requires a ________ or other device providing pressure-relieving protection shall be installed in each section of piping and hose in which lp-gas can be isolated between shutoff valves.
• When determining container size, the temperature used for tank sizing should be the ______ temperature anticipated for that installation's location
• Which component records the quantity dispensed by the pump?
• The max length of time for most temp heat/construction installations is ____.
• If the power supply at the site will only support low-voltage, single phase electric motors, the pump size and volume must be matched to the _____
• If the dispenser installation is primarily used to fill larger, vehicle mounted mobile, or motor fuel tanks at a filling station or fleet service center, a ______ pump should be considered to reduce filling time and minimize operator waiting that could contribute to lack of attention during the filling operation.
• During a propane emergency, what is the recommended priority?
• What characteristics apply to DOT cylinders?
• You just installed a gas fired warm furnace what test must be made and the results left on site?
• For LP-Gas installations, a ______ differential of 125 psig is allowed by Underwriters Laboratories, Inc. listing and NFPA 58.
• Anodeless risers are compatible with which piping materials?
• Not all materials and supplies needed for installation at the customer site are considered cargo; only non-perishable materials must be secured under DOT regulations. The statement is:
• Which NFPA code applies to propane dispensers located at locations with multiple fuel refueling stations?
• If you are transporting cylinders or tanks greater than 1000 pounds containing propane, you must carry which of the following?
• Why would a transfer hose swirl around when lp-gas is being introduced into a container?
• The requirement for performing a leak check only applies to the portion of the piping covered by NFPA 54.
• Who can supervise helpers?
• What is the length of the propane hose?
• Which of the following is NOT a physical defect that would disallow refilling a propane cylinder?
• Are flare nuts permitted for underground propane piping installations?
• Dispenser supply tank over 4,000 gallons water capacity or having a filling opening 1 1/4 inch or larger require a transfer bulkhead equipped with an emergency shutdown valve (ESV) for the vapor equalizing connection and an ESV for the liquid fill connection. A backflow check valve may be used for the liquid line if flow of liquid is limited to one direction.
• Which feature is essential to ensure accurate measurement of dispensed propane?
• A liquid meter will over register any time there is vapor in the ________.
• In underground propane installations, the use of flare nuts is?
• According to NFPA 58 combustible materials must not be present:
• Which listing accompanies NFPA 58 for the propane pump bypass valve differential pressure setting?
• What are the 3 steps to determine total gas demand?
• What are the fencing requirements around propane tanks?
• Which page range contains information on tank locations?
• Which of the following best describes the second step in determining total gas demand?
• Which statement about saddle plates is true?
• Which standard governs electrical safety in hazardous locations for propane dispenser installations?
• Under DOT regulations, is it true that only non-perishable materials must be secured?
• What is the purpose of flow tests and lock-up tests on vapor distribution systems?
• The key component of an explosion-proof electrical system that must be installed at the boundary between classified and non classified areas and a condition of its installation that is crucial to the functioning of the explosion proof system
• Cylinders not filled on site must be ____ feet from building openings below the relief valve.
• What is the vapor specific gravity of propane?
• When there is no change in register when liquid propane is flowing the first meter component to check is the ______ for movement. If movement is seen, the ______ must be repaired or replaced.
• What is the minimum distance for combustible materials from a propane container as specified by NFPA 58?
• Which standard covers spacing on propane tanks?
• How long do you have to appeal a board decision?
• The class and group approval required by the NEC for teh visible components of a dispenser electrical system which must be marked on all visible components with the exception of the wiring condui
• Under what conditions is an explosion-proof electrical switch considered a potential ignition source?
• What is the lower flammable limit of propane expressed as a percentage?
• What material is not approved to be used for regulator vent?
• The maximum differential pressure setting allowed by NFPA 58 and UL listing for propane pump bypass vlave
• Which item is not included in PERC consumer safety material?
• A pressure test applies pressure of not less than ____ times the proposed maximum working pressure of the interior piping, but in no case less than ____.
• For ASME LP-GAS storage tanks with a water capacity of 125 gallons or greater, what maximum percentage of water capacity may they be filled to when transported on a public roadway?
• Propane grills, fire pits, mosquito traps, illuminating appliances, and patio heaters are all examples of ____.
• When determining a tank location, should you ensure the distance from property lines and ignition sources meets code requirements?
• If site requirements mandate the use of a buried or mounded underground supply tank, the pump selection should be made after consulting the ______.
• Which organization sets propane safety standards used in Maine?
• Pump Manufacturer IOM instructions include a ______ for protecting the pump from debris that could damage internal components.
• Which standard governs fencing around propane tanks according to the reference material?
• Which tank type is permitted to be transported fully filled according to the differences described?
• What characteristic apply to all ASME tanks regardless of size?
• For a dispenser with a filling opening 1 1/4 inch or larger, what equipment is required?
• In the leak test procedure for propane tanks, what is Step 3?
• Which component in a gas piping system regulates the gas pressure?
• How long after the initial cathodic readings should the next tests be performed?
• What are the specific gravities for propane vapor and propane liquid?
• The type of valve that must be installed in or on the dispenser at the point where the dispenser hose connects to the liquid piping is:
• What distinguishes a consumer vehicle fueling station from a cylinder filling station?
• What is the required dome clearance above finished grade for underground or mound propane tanks?
• The vapor management requirement in the dispenser system states that vapor must be prevented from entering the meter before or during liquid transfer by what?
• Who should coordinate the planning of electrical service with the site owner or operator for a propane dispenser?
• If you have an uncontrolled release, NEVER enter or re-enter a hazardous environment. When you are evacuating what should you try to do?
• If an ASME tank cannot be fitted with an internal valve that provides emergency shutdown protection automatically in the event of a fire and remote shutdown capability, a(n) ______ may be used in combination with an excess-flow valve installed in the tank opening and a manual valve installed as close as possible to the excess-flow valve
• Flow tests and lock-up tests are typically performed on vapor distribution systems ______ to determine if the piping system and regulator(s) are sized correctly for the estimated load and are functioning properly.
• The PERC consumer safety material includes all of the following except?
• The discharge point from the regulator's pressure relief valve should be located at least how many feet from any building opening below the discharge point?
• According to NFPA 58, vertical tanks shall be designed to withstand the _____ anticipated at the sites.
• Which statement about interior piping is true?
• NFPA 58 is the standard for LP-Gas storage and piping systems.
• Which item is not listed as an example of outdoor living equipment?
• Which standard is associated with requirements for emergency shutoff at propane dispensing facilities?
• An anodeless riser is permitted on which pipe materials?
• Which gauge is specified by NFPA 58 to indicate the maximum liquid level on ASME tanks?
• If a pump is equipped with an internal bypass (sometimes called a pump 'relief valve') it must be set according to _____, typically at least 10-25 psig higher than the external bypass valve setting.
• Which manual must be completed in addition to the Fire Safety Analysis when the aggregate water capacity is 4,000 gallons or greater?
• Which organization is responsible for listing standards referenced in LP-Gas installation guidelines?
• The term bulkhead refers to:
• NFPA 58 specifies that the following types of steel piping can be used for propane vapor distribution systems
• Propane dispenser electrical systems must conform to NFPA 58 for ignition source control and those of ______ for hazardous
• Which option is not a good method for loading cylinders onto a vehicle?
• Is a dryer vent considered an opening into the house or a source of ignition?
• When selecting T-blocks, what is considered the most important factor?
• In addition to decals and labels required by regulations, what decal is available through PERC?
• For every dispenser transfer hose application, a _______ hose-end valve is a code requirement.
• Which factor is essential to ensure proper pre-installation planning and to avoid wasted time and expense when setting up a propane dispenser?
• What is a key limitation of the helpers license?
• The two methods for providing excess-flow protection and positive shut off of liquid at the withdrawal opening of ASME tanks typically used to supply propane dispensets
• The assessment will be conducted before the connections are made between the exterior and interior portions of the system.
• NFPA 58 provides requirements for what aspect of propane dispensers?
• Which statement accurately describes the range for the location of the emergency shutoff switch from the dispenser?
• Where can you find information on bulk plant permits for propane facilities?
• How can meters be mounted?
• The design working pressure and safety factor required by NFPA 58 for hose used with propane dispenser is:
• What is the register on the dispenser pump?
• How far must a bulk plant tank be from a building?
• NFPA 54 is the National Fuel Gas Code used for interior gas piping requirements.
• In the event of a propane emergency, you should?
• When using the OPD what is a good back up measure?
• What feature is essential to accurately measure dispensed propane at a dispenser?
• You can respond to certain emergencies without training if and only if permission is granted by your supervisor.
• Which two components are included in a consumer vehicle fueling station to ensure safety and accurate dispensing?
• In a mixture with a 1:24 propane-to-air ratio, which component is in the majority?
• What is the purpose of a quick closing hose-end valve on dispenser hoses?
• What is the vaporizer distance from the point of transfer?
• PE can also be joined using
• Which published standard should be consulted to determine spacing and setbacks for propane tanks?
• What is Step 2 in the leak test procedure for tanks?
• Which of the following is a correct location guideline for regulator vents relative to ignition sources?
• Is a dryer vent considered an opening into the house or a source of ignition?
• Which organizations are cited as allowing a 125 psig differential for LP-Gas installations?
• Which chart is used to verify propane's boiling point according to the data?
• When determining a tank location, what code requirements must be met?
• PE pipe joining methods include mechanical fittings and heat fusion. Which option listed is NOT a heat fusion method?
• For 1/2 inch O.D tubing, what is the recommended support interval?
• What is Step 4 in the leak test procedure for tanks?
• If a single dispenser supply tank with a water capacity of more than 4,000 gallons is filled using a liquid transfer line that is ______ or larger and a pressure equalizing vapor line that is _______ or larger, a transfer bulkhead, emergency shutoff valves (ESV) and one or more remote shutdown stations are required
• What minimum vertical clearance must an above-ground propane tank maintain from overhead electrical lines rated at 600 volts or more?
• Which forces must vertical tanks be designed to withstand, according to NFPA 58?
• The primary consideration in selecting a pump for a dispenser that will be primarily used to fill smaller cylinders is to select a pump with minimal gallon per minute to minimize the risk of ______
• Which statement describes a difference between ASME and DOT propane tanks?
• Cylinders filled on site must be ____ feet from source of ignition.
• Which description correctly explains securing the anode to saddle plates?
• Where would you find licensing authorities and limitations information for propane operations in Maine?
• After installing a gas-fired furnace, which test result should be documented and left on site?
• Which instrument is last in the options for measuring low-pressure regulator outlet pressure?
• What is the specific gravity of natural gas, and does it have a liquid phase?
• What is the first step you should take before lighting any appliance pilot?
• What device is designed to remain in place except during pressure relief device operation to minimize the entrance of water or extraneous matter into the tank's relief device or discharge piping?
• Three factors must be known to verify that the explosion-proof motor is appropriate for the dispenser installation and pump.
• Which valve provides pressure-relieving protection in sections of piping and hose where lp-gas can be isolated?
• Aluminum containers exposed to fire must be:
• In a 1:24 ratio, what percentage of the mixture is propane?
• Why is tracer wire used with PE piping?
• NFPA 58 requires that there be no ignition sources:
• Where is information on bulk plant permits located?
• Which device can be used to pinpoint a leak?
• Under Maine Fuel Board regulations, who may supervise propane helpers?
• Motor fuel dispensing units at multi-fuel refueling stations must be installed on?
• A _______ measures the amount of delivered pressure to an appliance with no demand to ensure that the regulator will shut off the flow or propane when the appliances are not in use.
• Which document provides information on the minimum burial depth of underground propane tanks?
• The designated switch or circuit breaker to shut off power at a propane motor fuel dispenser must be located within what distance range from the dispenser?
• Which of the following is the minimum amount of time required according to NFPA 54 to perform a pressure test on a new gas piping system that has 6 cubic feet of piping in total?
• When installing a regulator, the discharge point from the pressure relief valve must be at least how many feet horizontally from any building opening below the discharge point?
• Underground tank venting information is found within which standard?
• What is the minimum separation distance required between propane motor fuel dispensers and other fuel dispensers?
• How far can meters be from the source of ignition?
• If no sealing fitting is provided at the boundary between classified and non-classified areas, or if the lower portion of the fitting is not properly sealed with sealing compound, the entire system ______ as an explosion-proof system
• A _______ electrical contractor should install the dispenser electrical wiring and other electrical system components
• Never attempt to bleed down a meter using ________; doing so reduces the pressure only in the hose and not in the meter.
• The standard that provides the requirements for a designated switch or circuit breaker to shut off the power in an emergency at a propane motor fuel dispenser is:
• Which of these items is not a primary component of a dispenser electrical system? Sealing Fitting; Remote Shute off Switch; Explosion Proof Switch; Octagon Electrical Box
• For the hose used with propane dispensers, the design working pressure and safety factor specified by NFPA 58 is:
• Pigtail connectors are not used with what type of group?
• Which device is used to prevent overheating in a central heating system as required by regulations?
• What action causes the transfer hose to swirl when LP-Gas is being introduced into a container?
• The internal bypass on a pump is also commonly referred to as a
• Which statement describes the steel piping types explicitly listed as acceptable for propane vapor distribution by NFPA 58?
• What is the purpose of the rain cap?
• Which type of meter is used to measure the volume dispensed in a propane liquid metering system?
• In terms of propane pump ratings, _____ is the difference between the pressure at the outlet side of the pump and the pressure at the inlet side of the pump.
• Retrofitting is necessary when testing determines that installed anodes do not provide sufficient voltage to cathodically protect the system.
• Either a Fire Safety Analysis or a written product release prevention and incident preparedness review must be prepared and submitted to _______
• An identified and accessible ______ shall be installed at a location not less than 20 feet or more than 100 feet from the dispensing device to shut off the power in the event of a fire, accident, or other emergency.
• What is the lower flammable limit of propane?
• What device may be used on the liquid line to prevent reverse flow if flow of liquid is limited to one direction (into the dispenser supply tank)?
• What is the required distance range for a circuit breaker from the propane dispenser?
• The planning and installation of electrical service to a propane dispenser should be coordinated with the installation site owner or operator and a ______.
• To comply with NFPA 58, a pump operating _______ shall be located near the dispenser pump.
• Propane dispenser hose shall be listed for LP-gas and designed for a working pressure of ______ with a safety factor 5:1.
• What are the ignition point and the maximum flame temperature values given for propane?
• How far must a bulk plant be from a school?
• _______ in electrical area classifications are based upon the likelihood of the presence of a flammable mixture of materials located in the area.
• In a propane-to-air ratio of 1:24, what percentage of the mixture is air?
• State of Maine fuel Board rules require what switch mounted above the Central Heating Appliances
• NFPA 58 requires that hose assemblies shall be leak tested ______.
• Which statement about natural gas is true?
• Multi-container installations with an aggregate capacity of 501 gallons must be separated from other containers a minimum of _____ feet.
• Where should a dielectric union be installed in propane piping?
• The term bulkhead refers to:
• In testing regulator shutoff with no appliance demand, which test is used?
• Where should the test-block gauge be installed to conduct a leak check?
• The meaning of differential pressure
• A lock up test measures the pressure in the lines downstream of the first stage regulator to ensure that the regulator will shut off the flow of propane when the appliances are not calling for gas.
• There are some differences between DOT containers and ASME tanks that impact evacuation procedures. Which statement does not belong?
• ASME tanks filled on site must have the fill and fixed maximum liquid level gauge vent ____ feet from sources of ignition.
• Which step for transferring propane does not belong?
• What parameter is checked to test the cathodic protection system?
• The first determination in signing and installing the dispenser to avoid waiting time and the expense that can arise out of poor pre-installation planning is _____
• Proper support for 1/2'' O.D tubing is ____ intervals
• How many BTU's are in one gallon of LP?
• Minimum separation distance between multiple containers if aggregate capacity is 501 gallons?
• How many feet does the regulator vent have to be from the sources of ignitions?
• What is the most commonly used scale?
• Before the piping enters the building, underground metallic piping must use what kind of fitting?
• Which statement about securing the anode to the tank is true?
• An ASME tanks ______ is used to determine the discharge capacity requirements for its relief valve(s).
• What diameter should steel bollards for vehicle protection have?
• The NFPA code that applies to propane dispensers located at multiple fuel refueling stations is _____.
• Before dispenser equipment is installed, a ______ and an operation and Maintenance Procedure Manual must be completed if the aggregate water capacity of propane storage tank(s) is 4,000 gallons or greater; or a site plan and permit application must be submitted, if required by state or local jurisdictional authorities.
• Flexible connectors of the proper length must be selected, and should be installed so that they are as close as practical to a straight line; they should never be used in place of pipe fittings. True or False?
• Which statement about DOT cylinders is true?
• If an ASME tank cannot be fitted with an internal valve that provides emergency shutdown protection automatically in the event of a fire and remote shutdown capability, a(n) ______ may be used in combination with an excess-flow valve installed in the tank opening and a manual valve installed as close as possible to the excess-flow valve
• Underground metallic piping requires the use of an ______ fitting before the piping enters the building
• Which statement best reflects second stage regulator requirements for vapor distribution layouts?