TSSA PRACTICE QUESTIONS AND
ANSWERS
What would be the max flame failure response time for a standing pilot - Correct
Answers -1 min and 30 seconds
What does MSDS stand for? - Correct Answers -Material Safety Data Sheet
for basic self protection what do you need? - Correct Answers -A) safety glasses
B) safety shoes/boots
C) gloves
D) all of the above
What is the temperature rise in a forced warm air furnace - Correct Answers -The temp
difference between the supply air and the return air
An appliance has a hot surface ignition system, what ignites the burner flame - Correct
Answers -Hot surface
If the gas/air velocity is too great at the port of an atmospheric burner, the flame will
have a tendency to - Correct Answers -List off the port
An indication of excessive primary air - Correct Answers -Lifting flame
A recessed wall furnace must use which of the following - Correct Answers -"BW" vent
Energy in the form of stationary electric charge is known as - Correct Answers -Static
electricity
A ladder must extend above the roof landing by? - Correct Answers -36"
What are the approximate limits of flammability for natural gas ? - Correct Answers -4%-
15%
What is the ignition temp of natural gas? - Correct Answers -1300 F
What is the flame temp of natural gas? - Correct Answers -1000 F
, What is the air to gas ratio for perfect combustion of propane gas - Correct Answers -
23.5 to 1
What is the expansion rate of propane gas - Correct Answers -1:270
What is the heating value of natural gas per cubic foot in Canada - Correct Answers -
1000 BTU
Who is the most common testing agency that certifies venting? - Correct Answers -ULC
What is the relief valve pressure setting for a propane tank - Correct Answers -250 psig
Who issues gas technician certificates in Ontario - Correct Answers -Technical
standards and safety authority
What is the flammability range of CO? - Correct Answers -12% to 74%
What are the products of complete combustion - Correct Answers -Carbon dioxide,
water vapour, heat
What is needed to start combustion of a fuel - Correct Answers -Ignition, fuel, air
What is the air needed to operate a natural draft gas appliance safely? - Correct
Answers -Combustion air, dilution air
What is the boiling point of natural gas - Correct Answers --260°F
What is the relative density of propane gas - Correct Answers -1.52
What is air comprised of? - Correct Answers -80% nitrogen and 20% oxygen
What are the products of incomplete combustion - Correct Answers -Soot, aldehydes,
carbon monoxide, heat
What type of air is premixed with gas prior to ignition - Correct Answers -Primary air
What type of air surrounds the flame for proper combustion - Correct Answers -
Secondary air
Dilution air is - Correct Answers -Air to neutralize chimney draft
How many types of fire extinguishers exist - Correct Answers -4
What is the weight of one imperial gallon of propane - Correct Answers -
What is the relief valve pressure set on a propane cylinder - Correct Answers -250 psig
ANSWERS
What would be the max flame failure response time for a standing pilot - Correct
Answers -1 min and 30 seconds
What does MSDS stand for? - Correct Answers -Material Safety Data Sheet
for basic self protection what do you need? - Correct Answers -A) safety glasses
B) safety shoes/boots
C) gloves
D) all of the above
What is the temperature rise in a forced warm air furnace - Correct Answers -The temp
difference between the supply air and the return air
An appliance has a hot surface ignition system, what ignites the burner flame - Correct
Answers -Hot surface
If the gas/air velocity is too great at the port of an atmospheric burner, the flame will
have a tendency to - Correct Answers -List off the port
An indication of excessive primary air - Correct Answers -Lifting flame
A recessed wall furnace must use which of the following - Correct Answers -"BW" vent
Energy in the form of stationary electric charge is known as - Correct Answers -Static
electricity
A ladder must extend above the roof landing by? - Correct Answers -36"
What are the approximate limits of flammability for natural gas ? - Correct Answers -4%-
15%
What is the ignition temp of natural gas? - Correct Answers -1300 F
What is the flame temp of natural gas? - Correct Answers -1000 F
, What is the air to gas ratio for perfect combustion of propane gas - Correct Answers -
23.5 to 1
What is the expansion rate of propane gas - Correct Answers -1:270
What is the heating value of natural gas per cubic foot in Canada - Correct Answers -
1000 BTU
Who is the most common testing agency that certifies venting? - Correct Answers -ULC
What is the relief valve pressure setting for a propane tank - Correct Answers -250 psig
Who issues gas technician certificates in Ontario - Correct Answers -Technical
standards and safety authority
What is the flammability range of CO? - Correct Answers -12% to 74%
What are the products of complete combustion - Correct Answers -Carbon dioxide,
water vapour, heat
What is needed to start combustion of a fuel - Correct Answers -Ignition, fuel, air
What is the air needed to operate a natural draft gas appliance safely? - Correct
Answers -Combustion air, dilution air
What is the boiling point of natural gas - Correct Answers --260°F
What is the relative density of propane gas - Correct Answers -1.52
What is air comprised of? - Correct Answers -80% nitrogen and 20% oxygen
What are the products of incomplete combustion - Correct Answers -Soot, aldehydes,
carbon monoxide, heat
What type of air is premixed with gas prior to ignition - Correct Answers -Primary air
What type of air surrounds the flame for proper combustion - Correct Answers -
Secondary air
Dilution air is - Correct Answers -Air to neutralize chimney draft
How many types of fire extinguishers exist - Correct Answers -4
What is the weight of one imperial gallon of propane - Correct Answers -
What is the relief valve pressure set on a propane cylinder - Correct Answers -250 psig
