Chapter 8-Fuel gas systems
A fuel gas system to either a building or an appliance can do all of the following except:
A-act as the initial fuel source.
B-be the initial ignition source.
C-act as the oxidizer for the incipient source.
D-be both the fuel and ignition sourc - Answer-act as the oxidizer for the incipient source.
Which of the following is not an important standard or source that an investigator should understand
when dealing with fuel gas systems that are found in residences or commercial occupancies?
A-NFPA 54, National Fuel Gas Code
B-29 CFR Part 311, EPA Standard for Natural Gas and Residential and Commercial Use
C-49 CFR Part 192, Transportation of Natural and Other Gases by Pipeline: Minimum Safety Standards
D-NFPA 58, Liquefied Petroleum Gas Code - Answer-29 CFR Part 311, EPA Standard for Natural Gas and
Residential and Commercial Use
Undiluted propane is ____________ than air and has a flammable range between ___________ percent.
A-heavier; 3.9 and 15
, B-lighter; 1.5 and 9
C-heavier; 2.15 and 9.6
D-lighter; 6.9 and 21.5 - Answer-heavier; 2.15 and 9.6
According to NFPA 58, the odorant that is added to liquid petroleum gas and natural gas must be
detectable when the fuel gas is at a concentration of not less than ____________ of its lower explosive
limit.
A-one-tenth
B-10 percent
C-one-half
D-one-fifth - Answer-one-fifth
A storage container with a water capacity of 1000 lb (450 kg) or less used to store LP gas is a:
A-cylinder.
B-tank.
C-carboy.
D-drum. - Answer-cylinder.
The pressure relief valve on a LP gas tank or cylinder is designed to open at:
A-300 psi (2068 kPa).
B-250 psi (1724 kPa).
C-150 psi (1034 kPa).
D-200 psi (1379 kPa). - Answer-250 psi (1724 kPa).
A fuel gas system to either a building or an appliance can do all of the following except:
A-act as the initial fuel source.
B-be the initial ignition source.
C-act as the oxidizer for the incipient source.
D-be both the fuel and ignition sourc - Answer-act as the oxidizer for the incipient source.
Which of the following is not an important standard or source that an investigator should understand
when dealing with fuel gas systems that are found in residences or commercial occupancies?
A-NFPA 54, National Fuel Gas Code
B-29 CFR Part 311, EPA Standard for Natural Gas and Residential and Commercial Use
C-49 CFR Part 192, Transportation of Natural and Other Gases by Pipeline: Minimum Safety Standards
D-NFPA 58, Liquefied Petroleum Gas Code - Answer-29 CFR Part 311, EPA Standard for Natural Gas and
Residential and Commercial Use
Undiluted propane is ____________ than air and has a flammable range between ___________ percent.
A-heavier; 3.9 and 15
, B-lighter; 1.5 and 9
C-heavier; 2.15 and 9.6
D-lighter; 6.9 and 21.5 - Answer-heavier; 2.15 and 9.6
According to NFPA 58, the odorant that is added to liquid petroleum gas and natural gas must be
detectable when the fuel gas is at a concentration of not less than ____________ of its lower explosive
limit.
A-one-tenth
B-10 percent
C-one-half
D-one-fifth - Answer-one-fifth
A storage container with a water capacity of 1000 lb (450 kg) or less used to store LP gas is a:
A-cylinder.
B-tank.
C-carboy.
D-drum. - Answer-cylinder.
The pressure relief valve on a LP gas tank or cylinder is designed to open at:
A-300 psi (2068 kPa).
B-250 psi (1724 kPa).
C-150 psi (1034 kPa).
D-200 psi (1379 kPa). - Answer-250 psi (1724 kPa).
