TSSA G3 Newest Exam with |! |! |! |! |!
verified solutions |!
Natural gas and propane are: - Correct answer ✔members of the hydrocarbon
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family
Natural gas and propane are composed mainly of: - Correct answer ✔carbon
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and hydrogen
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What is the odorant added to natural gas and propane? - Correct answer
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✔mercaptan
85% to 95% of natural gas is composed of: - Correct answer ✔methane
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Chemical formula for Methane: - Correct answer ✔CH4
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Chemical formula for Propane: - Correct answer ✔C3H8
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Chemical formula for Oxygen: - Correct answer ✔O2
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Chemical formula for Nitrogen: - Correct answer ✔N2
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Chemical formula for Water: - Correct answer ✔H2O
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,Chemical formula for Carbon Dioxide: - Correct answer ✔CO2
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Chemical formula for Carbon Monoxide: - Correct answer ✔CO
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The approximately percentage of oxygen and nitrogen in air is: - Correct
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answer ✔21% Oxygen and 79% Nitrogen
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The properties concerning natural gas and propane is on what page of the
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codebook? - Correct answer ✔351 |! |! |! |!
(T/F) Propane liquid escaping from a container rapidly drops in temperature -
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Correct answer ✔True |! |!
What is L.E.L.? - Correct answer ✔The lowest percent of gas in the air-gas
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mixture that will support combustion
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Odorant is added to natural gas at the: - Correct answer ✔City gate station
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The maximum flame temperature from the combustion of natural gas with air
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is: - Correct answer ✔3500 F
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The two main hydrocarbons which form natural gas are: - Correct answer
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✔methane and ethane |! |!
,The boiling point of propane is: - Correct answer ✔-44 F
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The boiling point of natural gas is: - Correct answer ✔-260 F
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What is the ignition temperature of propane gas compared to natural gas? -
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Correct answer ✔Lower for propane
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What is the ignition temperature of propane gas? - Correct answer ✔920 to
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1020 F |!
Is natural gas heavier or lighter than air? - Correct answer ✔lighter
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Is propane heavier or lighter than air? - Correct answer ✔heavier
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One imperial gallon of propane weighs: - Correct answer ✔5.1 pounds (2.3
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kilograms)
At 60°F (15,5° C) a pound of propane produces how many cubic feet of gas? -
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Correct answer ✔8.50 |! |!
Propane shall have a distinctive odour content to ensure it is readily
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detectable in the atmosphere down to concentrations of: - Correct answer
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✔20% of the lower explosive limit.
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, When one pound of propane burns, it releases approximately: - Correct
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answer ✔21,600 Btu |! |!
The relative density of liquid propane as compared to water is approximately: -
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Correct answer ✔0.5
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Propane is a: - Correct answer ✔hydrocarbon
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As the temperature of liquid propane in a tank increases, the vapour pressure
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of the propane: - Correct answer ✔increases
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One boiler horsepower is approximately: - Correct answer ✔34.000 Btuh (10
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kW)
The "specific gravity of a gas (vapour)" is: - Correct answer ✔the weight of the
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gas as compared to the weight of an equal volume of air
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Name the three elements required for combustion of any fuel? - Correct
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answer ✔Oxygen, Heat, and Fuel.
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What would be the easiest to control or eliminate in a
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leak situation (before a fire occurs) - Correct answer ✔Shutting off the fuel
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The products of perfect combustion of natural gas or propane with oxygen
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are: - Correct answer ✔water vapour, carbon dioxide, heat, and light
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verified solutions |!
Natural gas and propane are: - Correct answer ✔members of the hydrocarbon
|! |! |! |! |! |! |! |! |! |! |! |!
family
Natural gas and propane are composed mainly of: - Correct answer ✔carbon
|! |! |! |! |! |! |! |! |! |! |! |!
and hydrogen
|!
What is the odorant added to natural gas and propane? - Correct answer
|! |! |! |! |! |! |! |! |! |! |! |! |!
✔mercaptan
85% to 95% of natural gas is composed of: - Correct answer ✔methane
|! |! |! |! |! |! |! |! |! |! |! |!
Chemical formula for Methane: - Correct answer ✔CH4
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Chemical formula for Propane: - Correct answer ✔C3H8
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Chemical formula for Oxygen: - Correct answer ✔O2
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Chemical formula for Nitrogen: - Correct answer ✔N2
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Chemical formula for Water: - Correct answer ✔H2O
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,Chemical formula for Carbon Dioxide: - Correct answer ✔CO2
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Chemical formula for Carbon Monoxide: - Correct answer ✔CO
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The approximately percentage of oxygen and nitrogen in air is: - Correct
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answer ✔21% Oxygen and 79% Nitrogen
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The properties concerning natural gas and propane is on what page of the
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codebook? - Correct answer ✔351 |! |! |! |!
(T/F) Propane liquid escaping from a container rapidly drops in temperature -
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Correct answer ✔True |! |!
What is L.E.L.? - Correct answer ✔The lowest percent of gas in the air-gas
|! |! |! |! |! |! |! |! |! |! |! |! |! |!
mixture that will support combustion
|! |! |! |!
Odorant is added to natural gas at the: - Correct answer ✔City gate station
|! |! |! |! |! |! |! |! |! |! |! |! |!
The maximum flame temperature from the combustion of natural gas with air
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is: - Correct answer ✔3500 F
|! |! |! |! |!
The two main hydrocarbons which form natural gas are: - Correct answer
|! |! |! |! |! |! |! |! |! |! |! |!
✔methane and ethane |! |!
,The boiling point of propane is: - Correct answer ✔-44 F
|! |! |! |! |! |! |! |! |! |!
The boiling point of natural gas is: - Correct answer ✔-260 F
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What is the ignition temperature of propane gas compared to natural gas? -
|! |! |! |! |! |! |! |! |! |! |! |! |!
Correct answer ✔Lower for propane
|! |! |! |!
What is the ignition temperature of propane gas? - Correct answer ✔920 to
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1020 F |!
Is natural gas heavier or lighter than air? - Correct answer ✔lighter
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Is propane heavier or lighter than air? - Correct answer ✔heavier
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One imperial gallon of propane weighs: - Correct answer ✔5.1 pounds (2.3
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kilograms)
At 60°F (15,5° C) a pound of propane produces how many cubic feet of gas? -
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Correct answer ✔8.50 |! |!
Propane shall have a distinctive odour content to ensure it is readily
|! |! |! |! |! |! |! |! |! |! |! |!
detectable in the atmosphere down to concentrations of: - Correct answer
|! |! |! |! |! |! |! |! |! |! |!
✔20% of the lower explosive limit.
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, When one pound of propane burns, it releases approximately: - Correct
|! |! |! |! |! |! |! |! |! |! |!
answer ✔21,600 Btu |! |!
The relative density of liquid propane as compared to water is approximately: -
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Correct answer ✔0.5
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Propane is a: - Correct answer ✔hydrocarbon
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As the temperature of liquid propane in a tank increases, the vapour pressure
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of the propane: - Correct answer ✔increases
|! |! |! |! |! |!
One boiler horsepower is approximately: - Correct answer ✔34.000 Btuh (10
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kW)
The "specific gravity of a gas (vapour)" is: - Correct answer ✔the weight of the
|! |! |! |! |! |! |! |! |! |! |! |! |! |!
gas as compared to the weight of an equal volume of air
|! |! |! |! |! |! |! |! |! |! |! |!
Name the three elements required for combustion of any fuel? - Correct
|! |! |! |! |! |! |! |! |! |! |! |!
answer ✔Oxygen, Heat, and Fuel.
|! |! |! |!
What would be the easiest to control or eliminate in a
|! |! |! |! |! |! |! |! |! |!
leak situation (before a fire occurs) - Correct answer ✔Shutting off the fuel
|! |! |! |! |! |! |! |! |! |! |! |!
The products of perfect combustion of natural gas or propane with oxygen
|! |! |! |! |! |! |! |! |! |! |! |!
are: - Correct answer ✔water vapour, carbon dioxide, heat, and light
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