GPT Code Compliance & Regulations 3

Question 1

NFPA 54 defines 'medium pressure' gas piping as operating at pressures between:

Accepted Answer

2 psig and 200 psig

Answer

NFPA 54 classifies medium pressure piping as operating between 2 psig and 200 psig, requiring different material and joint standards than low-pressure systems.

Question 2

According to IFGC, which type of pipe is NOT approved for use inside a residential building for natural gas?

Accepted Answer

PVC plastic pipe

Answer

PVC plastic pipe is not listed for interior residential natural gas service; only approved materials such as steel, copper, CSST, and certain PE pipes are permitted.

Question 3

A gas technician discovers that an existing installation uses galvanized steel pipe for natural gas. Under NFPA 54, this is:

Accepted Answer

Prohibited because galvanizing reacts with certain gas odorants and can flake

Answer

NFPA 54 prohibits galvanized steel for gas service because zinc can react with hydrogen sulfide odorants and flake scale into regulators and valves.

Question 4

Under IFGC, the required pressure test for new gas piping systems with an operating pressure not exceeding 14 inches WC must use a test pressure of at least:

Accepted Answer

3 psi for 30 minutes

Answer

IFGC requires new low-pressure systems to be tested at a minimum of 3 psig for at least 30 minutes with no pressure drop.

Question 5

Under 49 CFR Part 192, a gas distribution operator must provide each customer with a written description of:

Accepted Answer

How to recognize and respond to a gas leak

Answer

49 CFR 192.616 requires operators to have a written public awareness plan that includes educating customers on how to recognize and respond to gas leaks.

(GPT) Gas Pipe Technician Certification Practice Test

(GPT) Gas Pipe Technician Certification Practice Test

GPT Code Compliance & Regulations 3