G3 Test Q&A
An employer of a fuel technician is - (correct answer)Responsible for ensuring that
safety instruction is provided to workers
classes of fire extinguishers - (correct answer)5 (A - Wood/paper, B - Grease, gas, C -
Electrical, D - Metals, K - Kitchen)
Who regulates workplace safety? - (correct answer)The province of Ontario
If a natural gas flame is adjusted to produce more than 11.9% carbon dioxide - (correct
answer)Carbon monoxide may be produced
Air that is mixed with fuel prior to ignition is called - (correct answer)Primary air
Gas to air ratio necessary to achieve perfect combustion with an atmospheric nat gas
burner - (correct answer)1 part nat gas to 10 parts air
Products of complete combustion - (correct answer)Water vapour, Carbon dioxide, and
heat
When propane changes from liquid to vapour, it's volume increases by - (correct
answer)270 times
Largest propale container - (correct answer)1000 gallons
An orifice for a propane appliance with the same input as a natural gas appliance is -
(correct answer)Smaller than the natural gas orifice
Carbon monoxide is a product of incomplete combustion of - (correct answer)A
hydrocarbon
, Two undesirable products of incomplete combustion are - (correct answer)CO and
aldehydes
An indication of excessive primary air is - (correct answer)Lifting flame
A yellow flame at an atmospheric burner could be the result of - (correct
answer)Insufficient primary air
A noisy lifting blowing pilot flame is usually the result of - (correct answer)Excessive gas
to the main burner
What would result if a flame is adjusted with too much primary air? - (correct
answer)Flame lift
A bunsen burner flame is characterized by its - (correct answer)Blue appearance
What would the likely cause be if there are orange flashes evident in a gas flame? -
(correct answer)Dust burning in the flame
If the gas/air velocity is too great at the port of an atmospheric burner, the flame will
have a tendency to - (correct answer)Lift off the port
Atmospheric burners are designed to operate under - (correct answer)Normal
atmospheric pressure with low gas pressure
When manufacturers instructions dont state clearances between combustible materials
and the base of a chimney, the installer may refer to the - (correct answer)Ontario
building code
An employer of a fuel technician is - (correct answer)Responsible for ensuring that
safety instruction is provided to workers
classes of fire extinguishers - (correct answer)5 (A - Wood/paper, B - Grease, gas, C -
Electrical, D - Metals, K - Kitchen)
Who regulates workplace safety? - (correct answer)The province of Ontario
If a natural gas flame is adjusted to produce more than 11.9% carbon dioxide - (correct
answer)Carbon monoxide may be produced
Air that is mixed with fuel prior to ignition is called - (correct answer)Primary air
Gas to air ratio necessary to achieve perfect combustion with an atmospheric nat gas
burner - (correct answer)1 part nat gas to 10 parts air
Products of complete combustion - (correct answer)Water vapour, Carbon dioxide, and
heat
When propane changes from liquid to vapour, it's volume increases by - (correct
answer)270 times
Largest propale container - (correct answer)1000 gallons
An orifice for a propane appliance with the same input as a natural gas appliance is -
(correct answer)Smaller than the natural gas orifice
Carbon monoxide is a product of incomplete combustion of - (correct answer)A
hydrocarbon
, Two undesirable products of incomplete combustion are - (correct answer)CO and
aldehydes
An indication of excessive primary air is - (correct answer)Lifting flame
A yellow flame at an atmospheric burner could be the result of - (correct
answer)Insufficient primary air
A noisy lifting blowing pilot flame is usually the result of - (correct answer)Excessive gas
to the main burner
What would result if a flame is adjusted with too much primary air? - (correct
answer)Flame lift
A bunsen burner flame is characterized by its - (correct answer)Blue appearance
What would the likely cause be if there are orange flashes evident in a gas flame? -
(correct answer)Dust burning in the flame
If the gas/air velocity is too great at the port of an atmospheric burner, the flame will
have a tendency to - (correct answer)Lift off the port
Atmospheric burners are designed to operate under - (correct answer)Normal
atmospheric pressure with low gas pressure
When manufacturers instructions dont state clearances between combustible materials
and the base of a chimney, the installer may refer to the - (correct answer)Ontario
building code
