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ALBERTA GASFITTER CLASS A CERTIFICATION EXAM
QUESTIONS AND CORRECT VERIFIED SOLUTIONS LATEST
UPDATE THIS YEAR – JUST RELEASED
ALBERTA GASFITTER CLASS A CERTIFICATION EXAM
EXAM COVERAGE
Alberta Gasfitter Class A scope of practice, certification requirements, restricted
activities, and professional responsibilities.
CSA B149.1:25 natural gas and propane installation requirements currently in force in
Alberta.
CSA B149.2:25 propane storage and handling principles and safe propane installations.
Gas piping materials, sizing, joining methods, supports, regulators, valves, and pressure
requirements.
Combustion air, ventilation, dilution air, and mechanical air-supply requirements.
Appliance installation, conversion, commissioning, adjustment, and manufacturer
requirements.
Natural-draft, power-vented, direct-vent, and other venting systems and termination
principles.
Gas pressure testing, leak detection, purging, commissioning, and system examination.
Gas appliance controls, burners, ignition systems, safety shutoffs, regulators, and
troubleshooting.
Commercial and industrial gas equipment, high-input appliances, boilers, furnaces, and
advanced Class A applications.
1. What distinguishes Alberta Gasfitter Class A certification from the Class B branch regarding
appliance input capacity?
A. Class A is not limited to appliances of 400,000 BTU or less
B. Class A applies only to residential appliances
C. Class A excludes commercial appliances
D. Class A permits work only on propane systems
Answer: A
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Rationale: Class A encompasses A gas systems, including gas appliances regardless of BTU
rating, while Class B is limited to appliances not exceeding 400,000 BTU.
2. Which Alberta code is primarily concerned with natural gas and propane installation
requirements?
A. CSA B149.5
B. CSA B149.1
C. CSA B108.2
D. CSA B109.2
Answer: B
Rationale: CSA B149.1 is the Natural Gas and Propane Installation Code.
3. As of March 1, 2026, which edition of CSA B149.1 is declared in force in Alberta?
A. B149.1:20
B. B149.1:15
C. B149.1:25
D. B149.1:10
Answer: C
Rationale: Alberta declared CSA B149.1:25 in force on March 1, 2026.
4. Which Alberta code primarily addresses propane storage and handling rather than general
gas installation?
A. CSA B149.2
B. CSA B149.1
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C. CSA B108.1
D. CSA B149.6
Answer: A
Rationale: CSA B149.2 is the Propane Storage and Handling Code.
5. Which activity falls within the Alberta Gasfitter Class A scope of profession?
A. Fabricating, installing, altering, maintaining, repairing, and replacing gas systems
B. Installing only residential electrical wiring
C. Designing municipal roadways
D. Inspecting only domestic water systems
Answer: A
Rationale: Alberta identifies fabrication, installation, alteration, adjustment, maintenance,
repair, and replacement of A and B gas systems as gasfitter activities.
6. A Class A gasfitter is asked to install an industrial boiler with an input exceeding 400,000 BTU.
Which statement is correct?
A. The work is outside Class A scope
B. The work falls within Class A gasfitting scope when otherwise authorized
C. Only a plumber may perform it
D. The appliance must be converted to propane first
Answer: B
Rationale: Class A certification covers gas appliances regardless of BTU rating, including large
industrial equipment.
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7. Which component is included within the definition of a gas system under the Alberta Class A
scope?
A. Associated piping, fittings, air supply, and venting
B. Only the appliance cabinet
C. Only the utility meter
D. Only the thermostat
Answer: A
Rationale: The scope includes appliances and associated piping, fittings, air supply, and venting.
8. What is one major reason gas piping systems must be properly sized?
A. To maintain adequate gas flow and pressure at connected appliances
B. To eliminate the need for appliance regulators
C. To increase combustion products
D. To prevent all condensation in buildings
Answer: A
Rationale: Correct sizing helps ensure appliances receive adequate gas flow and operating
pressure.
9. Which factor must be considered when determining gas piping size?
A. Total connected load and developed length
B. Paint colour of the piping
C. Thermostat brand only
D. Room lighting level
Answer: A
ALBERTA GASFITTER CLASS A CERTIFICATION EXAM
QUESTIONS AND CORRECT VERIFIED SOLUTIONS LATEST
UPDATE THIS YEAR – JUST RELEASED
ALBERTA GASFITTER CLASS A CERTIFICATION EXAM
EXAM COVERAGE
Alberta Gasfitter Class A scope of practice, certification requirements, restricted
activities, and professional responsibilities.
CSA B149.1:25 natural gas and propane installation requirements currently in force in
Alberta.
CSA B149.2:25 propane storage and handling principles and safe propane installations.
Gas piping materials, sizing, joining methods, supports, regulators, valves, and pressure
requirements.
Combustion air, ventilation, dilution air, and mechanical air-supply requirements.
Appliance installation, conversion, commissioning, adjustment, and manufacturer
requirements.
Natural-draft, power-vented, direct-vent, and other venting systems and termination
principles.
Gas pressure testing, leak detection, purging, commissioning, and system examination.
Gas appliance controls, burners, ignition systems, safety shutoffs, regulators, and
troubleshooting.
Commercial and industrial gas equipment, high-input appliances, boilers, furnaces, and
advanced Class A applications.
1. What distinguishes Alberta Gasfitter Class A certification from the Class B branch regarding
appliance input capacity?
A. Class A is not limited to appliances of 400,000 BTU or less
B. Class A applies only to residential appliances
C. Class A excludes commercial appliances
D. Class A permits work only on propane systems
Answer: A
, Page 2 of 95
Rationale: Class A encompasses A gas systems, including gas appliances regardless of BTU
rating, while Class B is limited to appliances not exceeding 400,000 BTU.
2. Which Alberta code is primarily concerned with natural gas and propane installation
requirements?
A. CSA B149.5
B. CSA B149.1
C. CSA B108.2
D. CSA B109.2
Answer: B
Rationale: CSA B149.1 is the Natural Gas and Propane Installation Code.
3. As of March 1, 2026, which edition of CSA B149.1 is declared in force in Alberta?
A. B149.1:20
B. B149.1:15
C. B149.1:25
D. B149.1:10
Answer: C
Rationale: Alberta declared CSA B149.1:25 in force on March 1, 2026.
4. Which Alberta code primarily addresses propane storage and handling rather than general
gas installation?
A. CSA B149.2
B. CSA B149.1
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C. CSA B108.1
D. CSA B149.6
Answer: A
Rationale: CSA B149.2 is the Propane Storage and Handling Code.
5. Which activity falls within the Alberta Gasfitter Class A scope of profession?
A. Fabricating, installing, altering, maintaining, repairing, and replacing gas systems
B. Installing only residential electrical wiring
C. Designing municipal roadways
D. Inspecting only domestic water systems
Answer: A
Rationale: Alberta identifies fabrication, installation, alteration, adjustment, maintenance,
repair, and replacement of A and B gas systems as gasfitter activities.
6. A Class A gasfitter is asked to install an industrial boiler with an input exceeding 400,000 BTU.
Which statement is correct?
A. The work is outside Class A scope
B. The work falls within Class A gasfitting scope when otherwise authorized
C. Only a plumber may perform it
D. The appliance must be converted to propane first
Answer: B
Rationale: Class A certification covers gas appliances regardless of BTU rating, including large
industrial equipment.
, Page 4 of 95
7. Which component is included within the definition of a gas system under the Alberta Class A
scope?
A. Associated piping, fittings, air supply, and venting
B. Only the appliance cabinet
C. Only the utility meter
D. Only the thermostat
Answer: A
Rationale: The scope includes appliances and associated piping, fittings, air supply, and venting.
8. What is one major reason gas piping systems must be properly sized?
A. To maintain adequate gas flow and pressure at connected appliances
B. To eliminate the need for appliance regulators
C. To increase combustion products
D. To prevent all condensation in buildings
Answer: A
Rationale: Correct sizing helps ensure appliances receive adequate gas flow and operating
pressure.
9. Which factor must be considered when determining gas piping size?
A. Total connected load and developed length
B. Paint colour of the piping
C. Thermostat brand only
D. Room lighting level
Answer: A
