NFPA 58 Review Practice Exam Questions & Answers.
What is the definition of a portable container? - CORRECT ANSWER A container designed to be moved readily
Define universal cylinder - CORRECT ANSWER A cylinder that can be connected for service in either the vertical or horizontal position, ...
What is the definition of a portable container? - CORRECT ANSWER A container designed to be moved
readily
Define universal cylinder - CORRECT ANSWER 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 -
CORRECT ANSWER 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 - CORRECT
ANSWER 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? - CORRECT ANSWER Yes
What type of cylinders which are involved in a fire must be permanently removed from service? -
CORRECT ANSWER Aluminum and composite cylinders
The minimum design or service pressure of cylinders must comply with what regulations? - CORRECT
ANSWER Title 49 CFR (DOT)
Appurtenances and connections of cylinders 1,000 lb water capacity or less must be protected using
what means? - CORRECT ANSWER A ventilated cap or ventilated collar
What cylinder marking must be indicated in pounds? - CORRECT ANSWER water capacity
,Is the LP-gas capacity required to be marked on a DOT cylinder? - CORRECT ANSWER No
What are the replacement requirements for a pressure relief valve installed on a forklift cylinder? -
CORRECT ANSWER 12 years/10 years
What are the fabrication requirements for an LP gas hose, hose connections, and flexible connectors? -
CORRECT ANSWER resistant to LP gas
What are the minimum and maximum pressure settings for hydrostatic relief valves in liquid piping? -
CORRECT ANSWER 400/500
What is the minimum distance requirement for a 1,000 water gallon container to a building where no
other container of more than 125 gallons is within 25 feet of the 1,000 gallon container? - CORRECT
ANSWER 10 feet
From what part of an underground container is the required distance to a building or adjoining property
measured? - CORRECT ANSWER container surface
How must a cylinder installed alongside a building be positioned for the relief device to properly
discharge? - CORRECT ANSWER 3 feet horizontally from any building and 5 feet from ignition source
What is the minimum distance from an above ground container to electrical power lines? - CORRECT
ANSWER 600 volts and 6 feet
Where traffic is expected, how must a non-interchangeable underground container be protected from
vehicular damage? - CORRECT ANSWER 18 inches
The discharge of the regulator vent for an underground container must be above what? - CORRECT
ANSWER highest portable water level
What are the minimum corrosion requirements for an underground container? - CORRECT ANSWER
protected or coated
, What are the setting and back fill requirements for an underground container? - CORRECT ANSWER
surrounded by earth or sand free of rocks or abrasives
Regulators used outdoors must be installed or protected against what? - CORRECT ANSWER sleet, snow,
or debris
What is the vapor pressure limit for a corrugated stainless steel piping system? - CORRECT ANSWER 5
psig
If metallic piping is exposed above ground, may a bobtail driver fill the associated container? - CORRECT
ANSWER 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? -
CORRECT ANSWER No
When LP-gas liquid can be isolated between shutoff valves, what type of valve must be installed in each
closed section of piping? - CORRECT ANSWER hydrostatic relief valve
What are the minimum design service pressure requirements for ASME LP-gas mobile fuel containers? -
CORRECT ANSWER 250 or 312
What is the minimum service pressure for cylinders installed on recreational vehicles? - CORRECT
ANSWER 240
LP-gas fuel containers installed on a passenger-carrying vehicle are limited to ________ gallons,
aggregate water capacity. - CORRECT ANSWER 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. - CORRECT ANSWER 50
What are the location requirements for an identified and accessible switch or circuit breaker at a fuel
dispenser? - CORRECT ANSWER 20/100
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