GPT Code Compliance & Regulations 2

Question 1

Under NFPA 54, what is the minimum clearance required between a gas appliance and combustible material?

Accepted Answer

As specified by the appliance manufacturer's listing

Answer

NFPA 54 requires clearances to combustibles to follow the appliance manufacturer's listed and labeled instructions.

Question 2

Which federal agency enforces pipeline safety regulations for gas distribution systems under 49 CFR Part 192?

Accepted Answer

PHMSA

Answer

The Pipeline and Hazardous Materials Safety Administration (PHMSA) enforces 49 CFR Part 192 for natural gas pipeline safety.

Question 3

When a gas line passes through a foundation wall, NFPA 54 requires the pipe to be:

Accepted Answer

Sleeved to allow movement and sealed against gas entry

Answer

NFPA 54 requires a sleeve through foundation walls so the pipe can move and the annular space is sealed to prevent gas migration.

Question 4

According to NFPA 54, gas piping installed in concealed spaces must be:

Accepted Answer

Free of unions and accessible fittings

Answer

NFPA 54 prohibits unions, bushings, and right-and-left couplings in concealed locations to prevent gas leaks in inaccessible areas.

Question 5

What is the primary purpose of the 'maximum allowable operating pressure' (MAOP) designation under 49 CFR Part 192?

Accepted Answer

To set the upper pressure limit for safe pipeline operation

Answer

MAOP is the highest pressure at which a pipeline segment may be operated in compliance with 49 CFR Part 192.

(GPT) Gas Pipe Technician Certification Practice Test