4/6/25, 9:51 6 CFESA Gas Chapter 6- Gas Piping |
AM
6 CFESA GAS CHAPTER 6- GAS PIPING EXAM QUESTIONS AND
ANSWERS WITH COMPLETE SOLUTIONS VERIFIED
1.) What does the gas code The code states that the pipe must be sized to handle the
state regarding gas piping maximum volume of all the equipment attached to it plus
size? needs for the foreseeable future.
2.) What kind of pipe must be Black iron pipe is mandated by most local jurisdictions. Some
used on natural gas lines? jurisdictions may make exceptions for the use of CSST or
other materials.
3.) What materials can be used Black iron pipe is the material of choice however copper can also be used.
for LP gas lines?
4.) What kind of sealants can be Pipe sealants compatible with the type of gas being used.
used on natural gas fittings?
5.) A three- quarter elbow is 2 feet
equivalent to how long a pipe?
6.) A three- quarter inch tee is 4 feet if the direction of flow changes, 0 feet if its straight through.
equivalent to how long a pipe?
7.) Commercial flexible gas lines AGA and NSF
must
have what approvals to be
acceptable in most code
areas?
8.) What is the major difference The inside diameter of a commercial flexible gas line is the
between a commercial and internal size of black iron pipe. Domestic gas lines are
domestic flexible gas reduced in size.
connector?
9.) What is the purpose of the Added support to the gas line to keep it from tearing loose from the
stainless- steel braid on the connections.
outside of a
1/
3
AM
6 CFESA GAS CHAPTER 6- GAS PIPING EXAM QUESTIONS AND
ANSWERS WITH COMPLETE SOLUTIONS VERIFIED
1.) What does the gas code The code states that the pipe must be sized to handle the
state regarding gas piping maximum volume of all the equipment attached to it plus
size? needs for the foreseeable future.
2.) What kind of pipe must be Black iron pipe is mandated by most local jurisdictions. Some
used on natural gas lines? jurisdictions may make exceptions for the use of CSST or
other materials.
3.) What materials can be used Black iron pipe is the material of choice however copper can also be used.
for LP gas lines?
4.) What kind of sealants can be Pipe sealants compatible with the type of gas being used.
used on natural gas fittings?
5.) A three- quarter elbow is 2 feet
equivalent to how long a pipe?
6.) A three- quarter inch tee is 4 feet if the direction of flow changes, 0 feet if its straight through.
equivalent to how long a pipe?
7.) Commercial flexible gas lines AGA and NSF
must
have what approvals to be
acceptable in most code
areas?
8.) What is the major difference The inside diameter of a commercial flexible gas line is the
between a commercial and internal size of black iron pipe. Domestic gas lines are
domestic flexible gas reduced in size.
connector?
9.) What is the purpose of the Added support to the gas line to keep it from tearing loose from the
stainless- steel braid on the connections.
outside of a
1/
3
