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NFPA 58 Questions and Answers 100%
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What is the definition of a portable container? ✔✔A container designed to be moved readily
Define universal cylinder ✔✔A cylinder that can be connected for service in either the vertical or horizontal position, so that the fixed maximum liquid level gauge, pressure relief device, and withdrawal appurtenances function properly in either position.
LP gas portable cylinders must be ___________ in accordance with US Department of Transportation ✔✔designed, fabricated, tested, and marked
ASME LP gas motor/mobile fuel containers must be ___________ in accordance with the "Rules for Construction of Unfired Pressure Vessels," Section VIII, ASME Boiler and Pressure Vessel Code ✔✔designed, fabricated, tested, and marked
Is it permissible for an LP-gas portable container built prior to April 1, 1967, in accordance with Interstate Commerce Commission (ICC) regulations to remain in LP-gas service, provide all other requirements are met? ✔✔Yes
What type of cylinders which are involved in a fire must be permanently removed from service? ✔✔Aluminum and composite cylinders
The minimum design or service pressure of cylinders must comply with what regulations? ✔✔Title 49 CFR (DOT)
Appurtenances and connections of cylinders 1,000 lb water capacity or less must be protected using what means? ✔✔A ventilated cap or ventilated collar
What cylinder marking must be indicated in pounds? ✔✔water capacity
Is the LP-gas capacity required to be marked on a DOT cylinder? ✔✔No
What are the replacement requirements for a pressure relief valve installed on a forklift cylinder? ✔✔12 years/10 years
What are the fabrication requirements for an LP gas hose, hose connections, and flexible connectors? ✔✔resistant to LP gas
The discharge of the regulator vent for an underground container must be above what? ✔✔highest portable water level
What are the minimum corrosion requirements for an underground container? ✔✔protected or coated
What are the setting and back fill requirements for an underground container? ✔✔surrounded by earth or sand free of rocks or abrasives
Regulators used outdoors must be installed or protected against what? ✔✔sleet, snow, or debris
What is the vapor pressure limit for a corrugated stainless steel piping system? ✔✔5 psig
If metallic piping is exposed above ground, may a bobtail driver fill the associated container? ✔✔yes but it must be protected and supported from damage
Is it permissible to use polyethylene pipe installed above ground to provide fuel to an LP-gas system? ✔✔No
When LP-gas liquid can be isolated between shutoff valves, what type of valve must be installed in each closed section of piping? ✔✔hydrostatic relief valve
What are the minimum design service pressure requirements for ASME LP-gas mobile fuel containers? ✔✔250 or 312
What is the minimum service pressure for cylinders installed on recreational vehicles? ✔✔ 240
LP-gas fuel containers installed on a passenger-carrying vehicle are limited to ________ gallons, aggregate water capacity. ✔✔ 200
A vehicle fuel dispenser installed under a weather shelter or canopy must be ventilated and not enclosed more than ________ percent of of its perimeter. ✔✔ 50
What are the location requirements for an identified and accessible switch or circuit breaker at a fuel dispenser? ✔✔20/
What is the maximum length of an LP-gas transfer hose on an LP-gas vehicle fuel dispenser? ✔✔18 feet
What LP-gas activities require sources of ignition to be turned off? ✔✔vent it, connect and disconnect, and transfer
What minimum distance must ignition sources be from an LP-Gas transfer operation in progress? ✔✔25 feet
A cargo tank unloading into a storage container must be how many feet from the container? ✔✔10 feet minimum
What must be inspected on a pressurized hose assembly? ✔✔cuts, scratches, blisters, etc (all of the above)
An overfilling prevention device (OPD) on a cylinder is a __________ means to determine when a cylinder is properly filled. ✔✔secondary
LP-gas cylinders in storage must be located to minimize exposure to ___________________. ✔✔temperature increase, physical damage, or tampering
Empty cylinders in prior service stored indoors must be considered as _____________ cylinders in determining the maximum quantifies of LP-gas to be stored. ✔✔full
Cylinders in storage outside of buildings awaiting use, resale, or part of a cylinder exchange point must be located a minimum distance of ___________ feet from any doorway or opening in a building where occupants have at least ___________ means of egress. ✔✔5 feet / two
How must cylinders at a location open to the public to be protected? ✔✔lockable ventilated enclosure of metal
What type of lighting must be installed and used on an LP-transport? ✔✔electrical
What is the maximum LP-gas capacity of cylinders that may be transported in a closed-bodied passenger vehicle, unless the driver's and engine compartments are separated from the cargo space by a vapor-tight partition? ✔✔90 pounds
Cylinders and their appurtenances must be determined to be _______ before being loaded into vehicles. ✔✔leak-free
What is the minimum fire extinguisher requirement for a cargo tank motor vehicle? ✔✔ 18 pounds
When are chock blocks for a cargo tank vehicle required to be used? ✔✔loaded, unloaded, or parked
Smoking is not permitted within how many feet of a vehicle containing LP-gas? ✔✔25 feet
A vehicle containing LP-gas that is parked off the street in an uncongested area must be parked how far from any building used for assembly? ✔✔50 feet from building
What is the minimum service pressure for a DOT forklift cylinder? ✔✔ 240
The markings on a LP-gas motor/mobile fuel container installed on a vehicle must be readable ______________. ✔✔directly or with portable lamp and mirror
What is acceptable protection of engine fuel container valves, appurtenances, and connections? ✔✔location of container and fitted guard
Is it permissible for a motor/mobile fuel container to be mounted directly on a roof, ahead of the front axle, or beyond the rear bumper of a vehicle? ✔✔No (false).
What are the accessibility requirements for the main liquid and vapor shutoff valves on an LP- gas motor/mobile fuel container? ✔✔No tools and accessible
The relief valve discharge from an LP-gas motor/mobile fuel container installed on a vehicle must be directed or vented __________________. ✔✔depends on container, exhaust, or vehicle (all of the above)
An LP-gas motor/mobile fuel container installed in a vehicle's passenger or luggage compartment is required to be filled __________________. ✔✔remotely
Where must the diamond-shaped label be located on each on-road general purpose vehicle powered by LP-gas? ✔✔lower right rear or trunk lid
A fixed liquid level gauge on a forklift cylinder must indicated the maximum filling level of the cylinder when the cylinder is in what position? ✔✔vertical or horizontal
Define "gas vent." ✔✔to the outdoors
A piping system must be sized and installed to meet __________ demand. ✔✔the maximum
What is the maximum allowable operating pressure for an undiluted LP-gas system? ✔✔20 psi
Plastic pipe, tubing, and fittings used to supply fuel gas must conform to ___________ and must be used ____________. ✔✔ASTM D 2513; outdoors underground
Underground piping must be protected against ___________. ✔✔damage, corrosion, stress on the pipe
What are the prohibited locations for piping inside a building? ✔✔Gas piping inside any building shall not be installed in or through a clothes chute, chimney or gas vent, dumbwaiter, elevator shaft, or air duct, other than combustion air ducts.
What requirement applies to a gas outlet immediately after installation? ✔✔gas tight and we have to cap or plug it
What requirements apply to a main gas shutoff valve that controls several gas piping systems? ✔✔readily identified
What are the test pressure requirements for a piping system? ✔✔1 1/2 times the max working pressure but not less than 3 psig
When is a piping system required to be leak-tested? ✔✔immediately after the gas has been put into a new system or after interruption of service
The location where an appliance is to be operated must be checked to verify ______________. ✔✔combustion and ventilation, clearance, and venting system
What must be done before attempting to convert equipment to a gas other than the gas specified on the rating plate? ✔✔manufacturer must be contacted, installation instructions, and gas supplier
How high must gas utilization equipment in a residential garage be located above the floor? ✔✔18 inches
What requirements apply to sediment trap installations? ✔✔water heaters
What are prohibited exhaust duct connections for a Type 1 clothes dryer? ✔✔cant run through chimney, crawl space, etc.
Suspended-type infrared heaters must be fixed in a position independent of ____________________. ✔✔gas supply lines or electric supply lines
Wall furnaces must be located to prevent hazards to ________________. ✔✔walls, floors, furniture, doors
What is the minimum clearance on all sides and the rear of an unlisted water heater? ✔✔ 12 inches
What are the overpressure protection requirements for a water heater? ✔✔by means of an approved, listed device installed in accordance with the manufacturers installation instructions.
Appliances installed in manufactured housing after the initial sale must be installed in accordance with whose instructions? ✔✔manufacturers instructions
How do you check the draft of a vent-connected appliance? ✔✔let is warm up and then light it with a match
A venting system must be designed and constructed to remove flue or vent gases to __________________. ✔✔outdoors
Under normal operating conditions, which appliances are not required to be vented? ✔✔none of the above
All gas vents are required to be installed according to whose instructions? ✔✔Their listings and the manufacturers instructions
What type of vent must terminate 5 feet in vertical height above the highest connected draft hood or flue collar? ✔✔Type B or L
What safety concerns must be addressed prior to driving a cargo tank motor vehicle containing a hazardous material? ✔✔All manholes are closed and secured
What type of emergency information must be carried on or within a cargo tank motor vehicle that is subject to emergency discharge control procedures for delivery operations? ✔✔written procedure instructions
Prior to unloading from a cargo tank motor vehicle, the ______________ must check the components of the discharge system, including the delivery hose assemblies and piping. ✔✔qualified person
What are the requirements if there is an unintentional release of product to the environment during unloading? ✔✔a qualified person closes the internal valve
The person conducting the test of a cargo tank motor vehicle equipped with a wireless transmitter/receiver type off-truck remote shutoff system must be what discharge from the cargo tank? ✔✔150 feet
When is an operator required to test a cargo tank motor vehicle equipped with an off-truck remote shutoff system? ✔✔18 hours prior to the first delivery each day
When unloading a cargo tank with a capacity of 3500 water gallons or less in metered delivery service takes more than five minutes to complete, how frequently must the person observe both the cargo tank and the receiving container? ✔✔at least once every 5 minutes
The person unloading a cargo tank motor vehicle in other than metered delivery service must have an unobstructed view of the cargo tank and delivery hose and remain within what distance of the cargo tank? ✔✔within 25 feet and unobstructed view of the cargo tank and hose
What type of inspection and test must be conducted annually on each cargo tank? ✔✔external and visual leakage test
What information is required to be marked on each delivery hose assembly? ✔✔unique number
When is an operator required to visually check a particular portion of the delivery-hose assembly? ✔✔after each unloading operation
What part of the piping system on a cargo tank motor vehicle in metered delivery service must be visually inspected monthly? ✔✔elements, bolts, piping system (all of the above)
