12 Questions
Which ANSI/ASME standard covers the requirements for steel flanges from NPS 26 through NPS 60?
ANSI/ASME B16.47
Which ANSI/ASME standard specifies the requirements for cast iron pipe flanges and flanged fittings?
ANSI/ASME B16.1
What is the maximum pressure rating for non-ferrous flanges according to the text?
2500 psi
What is the requirement when 150 psi steel flanges are bolted to Class 125 cast-iron flanges?
The raised face on the steel flange shall be removed
When are lapped flanges permitted to be used according to the text?
Only above ground
What is the requirement for connecting raised-face flanges to flat-faced cast iron, ductile iron or non-ferrous material flanges?
Raised-face flanges shall not be joined to flat-faced cast iron, ductile iron or non-ferrous material flanges
Which of the following is NOT an acceptable material for gaskets?
Teflon
Which standard should non-metallic flange gaskets comply with?
ANSI/ASME B16.21
What should be done when a flanged joint is separated?
The gasket should be replaced
Which of the following statements about gas meter location is NOT true?
Gas meters can be located where they will be subjected to extreme temperatures
What is required to protect gas meters?
All of the above
When is a line pressure regulator required to be installed?
When the gas supply pressure exceeds the maximum allowable inlet pressure of the appliance served
This quiz covers the specifications for different types of flanges according to ANSI/ASME standards, including cast iron, steel, and non-ferrous flanges. Topics include Gray Iron Pipe Flanges, Flanged Fittings, and different classes of flanges as per the standards.
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