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NFPA 58 EXAM QUESTIONS AND VERIFIED ANSWERS
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NFPA 58 EXAM QUESTIONS AND VERIFIED ANSWERS...
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NFPA 58 EXAM QUESTIONS ANDVERIFIED ANSWERS
What is the definition of a portable container? - ANSWER A container
designed to be moved readily
Define universal cylinder - 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 shall be ___________ per US Department of
Transportation - ANSWER designed, fabricated, tested, and marked
ASME LP gas motor/mobile fuel containers shall be ___________ per the
"Rules for Construction of Unfired Pressure Vessels," Section VIII, ASME
Boiler and Pressure Vessel Code - ANSWER designed, fabricated, tested, and
marked
Would an LP-gas portable container manufactured prior to April 1, 1967, to
Interstate Commerce Commission requirements be qualified for continued LP-
gas service, if the other requirements were met? - ANSWER Yes
What type of cylinders that are involved in a fire shall be permanently removed
from service? - ANSWER Aluminum and composite cylinders
What must be the minimum design or service pressure of cylinders to
conformed with? - ANSWER Title 49 CFR (DOT)
,Appurtenances and connections of cylinders 1,000 lb water capacity or less
must be protected by what? - ANSWER A ventilated cap or ventilated collar
What marking on a cylinder must be in pounds? - ANSWER water capacity
Is LP-gas capacity required to be marked on a DOT cylinder? - ANSWER No
What are the replacement requirements for a pressure relief valve installed on a
forklift cylinder? - ANSWER 12 years/10 years
What fabrication requirements are there for an LP gas hose, hose connections
and flexible connectors? - ANSWER resistant to LP gas
What is the minimum/maximum psi setting for hydrostatic relief valves in
liquid piping? - ANSWER 400/500
What is the minimum distance a 1,000 water gallon container must be from a
building provided no other container of over 125 gallons is within 25 feet of the
1,000 gallon container? - ANSWER 10 feet
From what of an underground container is the necessary distance to a building
or adjoining property measured? - ANSWER container surface
How should a cylinder installed parallel to a building be located so that the
relief device can discharge properly? - 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? - ANSWER 600 volts and 6 feet
Where traffic is expected, how must a non-interchangeable underground
container be protected from vehicular damage? - ANSWER 18 inches
The discharge of the regulator vent for an underground container must be above
what? - ANSWER highest portable water level
What are the minimum corrosion requirements for an underground container? -
ANSWER protected or coated
What are the setting and back fill requirements for an underground container? -
ANSWER surrounded by earth or sand free of rocks or abrasives
Regulators used outdoors must be installed or protected against what? -
ANSWER sleet, snow, or debris
What is the maximum vapor pressure that can be permitted in a corrugated
stainless steel piping system? - ANSWER 5 psig
If metallic piping is above grade, can a bobtail driver fill the connected
container? - ANSWER yes but it must be safeguarded and supported against
damage
Can polyethylene pipe installed above grade be used to supply fuel to an LP-gas
system? - ANSWER No
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