TSSA Practice 2025/2026 Exam
Questions and Answers 100%
Guaranteed Success | Already Rated A+
What would be the max flame failure response time for a standing pilot -
🧠ANSWER ✔✔1 min and 30 seconds
What does MSDS stand for? - 🧠ANSWER ✔✔Material Safety Data Sheet
for basic self protection what do you need? - 🧠ANSWER ✔✔A) safety
glasses
B) safety shoes/boots
C) gloves
D) all of the above
A ladder must extend above the roof landing by? - 🧠ANSWER ✔✔36"
What are the approximate limits of flammability for natural gas ? -
🧠ANSWER ✔✔4%-15%
What is the ignition temp of natural gas? - 🧠ANSWER ✔✔1300 F
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
1
,What is the flame temp of natural gas? - 🧠ANSWER ✔✔1000 F
What is the air to gas ratio for perfect combustion of propane gas -
🧠ANSWER ✔✔23.5 to 1
What is the expansion rate of propane gas - 🧠ANSWER ✔✔1:270
What is the heating value of natural gas per cubic foot in Canada -
🧠ANSWER ✔✔1000 BTU
Who is the most common testing agency that certifies venting? -
🧠ANSWER ✔✔ULC
What is the relief valve pressure setting for a propane tank - 🧠ANSWER
✔✔250 psig
Who issues gas technician certificates in Ontario - 🧠ANSWER
✔✔Technical standards and safety authority
What is the flammability range of CO? - 🧠ANSWER ✔✔12% to 74%
What are the products of complete combustion - 🧠ANSWER ✔✔Carbon
dioxide, water vapour, heat
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
2
, What is needed to start combustion of a fuel - 🧠ANSWER ✔✔Ignition, fuel,
air
What is the air needed to operate a natural draft gas appliance safely? -
🧠ANSWER ✔✔Combustion air, dilution air
What is the boiling point of natural gas - 🧠ANSWER ✔✔-260°F
What is the relative density of propane gas - 🧠ANSWER ✔✔1.52
What is air comprised of? - 🧠ANSWER ✔✔80% nitrogen and 20% oxygen
What are the products of incomplete combustion - 🧠ANSWER ✔✔Soot,
aldehydes, carbon monoxide, heat
What type of air is premixed with gas prior to ignition - 🧠ANSWER
✔✔Primary air
What type of air surrounds the flame for proper combustion - 🧠ANSWER
✔✔Secondary air
Dilution air is - 🧠ANSWER ✔✔Air to neutralize chimney draft
How many types of fire extinguishers exist - 🧠ANSWER ✔✔4
What is the weight of one imperial gallon of propane - 🧠ANSWER ✔✔
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
3
Questions and Answers 100%
Guaranteed Success | Already Rated A+
What would be the max flame failure response time for a standing pilot -
🧠ANSWER ✔✔1 min and 30 seconds
What does MSDS stand for? - 🧠ANSWER ✔✔Material Safety Data Sheet
for basic self protection what do you need? - 🧠ANSWER ✔✔A) safety
glasses
B) safety shoes/boots
C) gloves
D) all of the above
A ladder must extend above the roof landing by? - 🧠ANSWER ✔✔36"
What are the approximate limits of flammability for natural gas ? -
🧠ANSWER ✔✔4%-15%
What is the ignition temp of natural gas? - 🧠ANSWER ✔✔1300 F
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
1
,What is the flame temp of natural gas? - 🧠ANSWER ✔✔1000 F
What is the air to gas ratio for perfect combustion of propane gas -
🧠ANSWER ✔✔23.5 to 1
What is the expansion rate of propane gas - 🧠ANSWER ✔✔1:270
What is the heating value of natural gas per cubic foot in Canada -
🧠ANSWER ✔✔1000 BTU
Who is the most common testing agency that certifies venting? -
🧠ANSWER ✔✔ULC
What is the relief valve pressure setting for a propane tank - 🧠ANSWER
✔✔250 psig
Who issues gas technician certificates in Ontario - 🧠ANSWER
✔✔Technical standards and safety authority
What is the flammability range of CO? - 🧠ANSWER ✔✔12% to 74%
What are the products of complete combustion - 🧠ANSWER ✔✔Carbon
dioxide, water vapour, heat
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
2
, What is needed to start combustion of a fuel - 🧠ANSWER ✔✔Ignition, fuel,
air
What is the air needed to operate a natural draft gas appliance safely? -
🧠ANSWER ✔✔Combustion air, dilution air
What is the boiling point of natural gas - 🧠ANSWER ✔✔-260°F
What is the relative density of propane gas - 🧠ANSWER ✔✔1.52
What is air comprised of? - 🧠ANSWER ✔✔80% nitrogen and 20% oxygen
What are the products of incomplete combustion - 🧠ANSWER ✔✔Soot,
aldehydes, carbon monoxide, heat
What type of air is premixed with gas prior to ignition - 🧠ANSWER
✔✔Primary air
What type of air surrounds the flame for proper combustion - 🧠ANSWER
✔✔Secondary air
Dilution air is - 🧠ANSWER ✔✔Air to neutralize chimney draft
How many types of fire extinguishers exist - 🧠ANSWER ✔✔4
What is the weight of one imperial gallon of propane - 🧠ANSWER ✔✔
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
3
