GPT Preventive Maintenance Procedures 3

Question 1

What does a pressure drop test during a PM inspection indicate if the drop exceeds the allowable threshold?

Accepted Answer

There is likely a leak somewhere in the piping system

Answer

An excessive pressure drop during a static or operating pressure test is a primary indicator of a gas leak in the piping system.

Question 2

Which of the following is a key preventive maintenance task for gas meters in a multi-unit building?

Accepted Answer

Verifying meter index readings and checking for corrosion or physical damage

Answer

During PM, technicians should verify meter readings for billing accuracy and inspect meters for corrosion, damage, and proper clearances from heat sources.

Question 3

When checking pipe hangers and supports during a PM inspection, which finding warrants immediate repair?

Accepted Answer

A missing or broken support that allows the pipe to sag or stress at a joint

Answer

Missing or broken supports allow pipes to sag, creating stress at joints and fittings that can lead to leaks or joint failure.

Question 4

What is the recommended practice when performing a PM on a gas system that serves critical equipment (like a hospital boiler)?

Accepted Answer

Schedule PM during planned outages and notify all affected parties in advance

Answer

Critical systems require coordination with facility management so planned outages can be arranged, preventing unplanned service interruptions during maintenance.

Question 5

During PM on an underground gas service line, what condition should a technician look for at the point where the pipe enters the building?

Accepted Answer

Proper sealing of the pipe sleeve to prevent gas migration into the building

Answer

The wall penetration sleeve must be sealed to prevent any gas that escapes underground from migrating into the building structure.

(GPT) Gas Pipe Technician Certification Practice Test

(GPT) Gas Pipe Technician Certification Practice Test

GPT Preventive Maintenance Procedures 3