Gas Trade Unit 14: Building as a System

TSSA G2 Certification - Practice Questions & Chapter Reviews

📋 Certification Level: TSSA G2 (Gas Technician 2 - Intermediate)

⚠️ Prerequisites: G3 Certification + 2 Years (4,000 hours) Experience

Master Gas Trade Unit 14 with free CSA B149.1-25 compliant practice questions for the TSSA G2 certification exam. This unit covers building interactions with gas appliances including building envelope components, pressure differentials, makeup air requirements, IAQ considerations, and combustion air path analysis.

📖 What This Unit Covers

Gas Trade Unit 14 focuses on understanding buildings as integrated systems:

Chapter 1: Key Components - Building envelope, vapour barriers, insulation, air barriers, and heat transfer principles
Chapter 2: Gas Technician/Fitter Use of the Building as a System - Stack effect, wind effect, mechanical systems interactions, and makeup air
Chapter 3: Assessment Tools for the Building as a System - Heat loss calculations, depressurization testing, and appliance sizing
Chapter 4: Indoor Air Quality - Ventilation requirements, air filtration, moisture control, and pollutant management

🎯 TSSA G2 Exam Relevance

CSA Code Reference: CSA B149.1-25 Section 7 (Venting and Combustion Air in Building Context)

Exam Coverage: Building systems concepts appear in approximately 10-15% of G2 exam questions. Understanding building interactions is critical for proper appliance installation and troubleshooting.

💡 Study Tips for Unit 14

Understand building envelope interactions and how they affect appliance operation
Study pressure differentials: stack effect, wind effect, and mechanical system impacts
Learn makeup air requirements and combustion air path analysis
Master IAQ considerations including ventilation and moisture control
Practice combustion air calculations and depressurization testing procedures

Unit 14 - Building as a System

Gas Trade Training - Chapter Questions

Quiz Complete!

Total Questions:

Correct Answers:

Incorrect Answers:

Final Score:

🚀 Next Steps in Your TSSA G2 Preparation

📚 Complete All G2 Units

Work through all G2 units to ensure comprehensive intermediate certification readiness.

View All G2 Units →

📖 Study CSA B149.1-25 Code

Deep dive into CSA B149.1-25 Section 7 requirements for building systems.

Search CSA Codes →

🤖 Try AI-Powered Study Tools

Get instant answers to advanced gas technician questions with our AI tutor.

Launch AI Tutor →

📚 Additional G2 Study Resources

⚠️ Educational Resource Disclaimer: This practice test is an independent educational resource designed to help students prepare for the TSSA G2 certification exam. These materials are based on CSA B149.1-25 requirements but are not official TSSA materials. G2 certification requires G3 prerequisite plus 2 years (4,000 hours) documented experience. Always refer to the official CSA B149.1-25 code and current TSSA guidelines for authoritative information. LARK Labs is not affiliated with TSSA or CSA Group.