GPT Study Guide 2026
Everything you need to pass the GPT exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
📋 GPT Exam Format at a Glance
📚 GPT Topics to Study (69)
✍️ Sample GPT Questions & Answers
1. What type of gauge is required when performing a pressure test on gas piping systems to ensure accurate readings?
A calibrated gauge with increments not exceeding 10% of the test pressure ensures accuracy and is required for valid pressure testing.
2. Under ICC IFGC, a sediment trap (drip leg) must be installed in the gas supply line to an appliance:
The IFGC requires sediment traps upstream of the appliance shutoff valve to catch debris before it reaches control valves.
3. What is a fundamental principle of Material Selection & Properties in Gas Pipe Technician Certification practice?
Following established standards and best practices ensures quality and consistency in Material Selection & Properties.
4. A gas system has been shut in (isolated) for a pressure test. After 15 minutes the pressure reading has increased slightly. What does this indicate?
A slight pressure rise during a shut-in test with stable or warming temperatures is typically caused by thermal expansion of the trapped gas and does not indicate a problem.
5. What does the term 'pipe stress' refer to in gas piping material selection?
Pipe stress refers to the combined internal and external forces — including operating pressure, thermal expansion, soil load, and vibration — that act on the pipe material.
6. What is the purpose of painting or labeling exposed gas piping with a specific color or marker?
Identifying markers and colors help workers recognize gas piping and avoid accidental cutting, drilling, or damage during construction.