GPT Inspection & Quality Control 3

Question 1

When inspecting a gas meter installation, which clearance from electrical equipment is typically required by code?

Accepted Answer

3 feet from electrical meters and panels

Answer

Gas meters must maintain a minimum 3-foot clearance from electrical panels, meters, and other ignition sources per NFPA 54.

Question 2

During a final inspection of a gas piping system, the inspector discovers the pipe was not sloped toward a drip leg. What problem could this cause?

Accepted Answer

Moisture accumulation in the piping that can block gas flow and damage appliances

Answer

Without proper slope toward a drip leg, condensate and liquid contaminants accumulate in the pipe, potentially blocking flow or damaging appliance controls.

Question 3

What is the correct procedure for testing a gas system that cannot be isolated from the meter during a pressure test?

Accepted Answer

Notify the gas utility and coordinate a temporary service interruption

Answer

When the system cannot be isolated from the meter, the gas utility must be notified to arrange a temporary service interruption so testing can proceed safely.

Question 4

An inspector notices that black iron pipe is installed in a location exposed to weather without any protective coating. Which action is required?

Accepted Answer

Apply an approved corrosion-resistant coating or replace with a listed outdoor-rated pipe

Answer

Black iron pipe exposed to weather must be coated with an approved corrosion-resistant material to prevent deterioration and potential failure.

Question 5

Which document must be completed and retained after a successful gas piping pressure test in a commercial installation?

Accepted Answer

A signed test record including test pressure, duration, gauge ID, and technician name

Answer

A formal test record with test pressure, hold duration, gauge identification, and the technician's signature is required for commercial installations for AHJ documentation.

(GPT) Gas Pipe Technician Certification Practice Test

(GPT) Gas Pipe Technician Certification Practice Test

GPT Inspection & Quality Control 3