TSSA G3 FINAL EXAM ASSESSMENT TEST BANK 300
QUESTIONS & DETAILED ANSWERS (WELL VERIFIED)
Natural gas and propane are: -ANSWER-members of the hydrocarbon family
Natural gas and propane are composed mainly of: -ANSWER-carbon and hydrogen
What is the odorant added to natural gas and propane? -ANSWER-mercaptan
85% to 95% of natural gas is composed of: -ANSWER-methane
Chemical formula for Methane: -ANSWER-CH4
Chemical formula for Propane: -ANSWER-C3H8
Chemical formula for Oxygen: -ANSWER-O2
Chemical formula for Nitrogen: -ANSWER-N2
Chemical formula for Water: -ANSWER-H2O
Chemical formula for Carbon Dioxide: -ANSWER-CO2
Chemical formula for Carbon Monoxide: -ANSWER-CO
The approximately percentage of oxygen and nitrogen in air is: -ANSWER-21% Oxygen and
79% Nitrogen
,The properties concerning natural gas and propane is on what page of the codebook? -
ANSWER-351
(T/F) Propane liquid escaping from a container rapidly drops in temperature -ANSWER-True
What is L.E.L.? -ANSWER-The lowest percent of gas in the air-gas mixture that will support
combustion
Odorant is added to natural gas at the: -ANSWER-City gate station
The maximum flame temperature from the combustion of natural gas with air is: -ANSWER-
3500 F
The two main hydrocarbons which form natural gas are: -ANSWER-methane and ethane
The boiling point of propane is: -ANSWER--44 F
The boiling point of natural gas is: -ANSWER--260 F
What is the ignition temperature of propane gas compared to natural gas? -ANSWER-Lower
for propane
What is the ignition temperature of propane gas? -ANSWER-920 to 1020 F
Is natural gas heavier or lighter than air? -ANSWER-lighter
Is propane heavier or lighter than air? -ANSWER-heavier
One imperial gallon of propane weighs: -ANSWER-5.1 pounds (2.3 kilograms)
, At 60°F (15,5° C) a pound of propane produces how many cubic feet of gas? -ANSWER-8.50
Propane shall have a distinctive odour content to ensure it is readily detectable in the
atmosphere down to concentrations of: -ANSWER-20% of the lower explosive limit.
When one pound of propane burns, it releases approximately: -ANSWER-21,600 Btu
The relative density of liquid propane as compared to water is approximately: -ANSWER-0.5
Propane is a: -ANSWER-hydrocarbon
As the temperature of liquid propane in a tank increases, the vapour pressure of the
propane: -ANSWER-increases
One boiler horsepower is approximately: -ANSWER-34.000 Btuh (10 kW)
The "specific gravity of a gas (vapour)" is: -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? -ANSWER-Oxygen, Heat, and
Fuel.
What would be the easiest to control or eliminate in a
leak situation (before a fire occurs) -ANSWER-Shutting off the fuel
The products of perfect combustion of natural gas or propane with oxygen are: -ANSWER-
water vapour, carbon dioxide, heat, and light
QUESTIONS & DETAILED ANSWERS (WELL VERIFIED)
Natural gas and propane are: -ANSWER-members of the hydrocarbon family
Natural gas and propane are composed mainly of: -ANSWER-carbon and hydrogen
What is the odorant added to natural gas and propane? -ANSWER-mercaptan
85% to 95% of natural gas is composed of: -ANSWER-methane
Chemical formula for Methane: -ANSWER-CH4
Chemical formula for Propane: -ANSWER-C3H8
Chemical formula for Oxygen: -ANSWER-O2
Chemical formula for Nitrogen: -ANSWER-N2
Chemical formula for Water: -ANSWER-H2O
Chemical formula for Carbon Dioxide: -ANSWER-CO2
Chemical formula for Carbon Monoxide: -ANSWER-CO
The approximately percentage of oxygen and nitrogen in air is: -ANSWER-21% Oxygen and
79% Nitrogen
,The properties concerning natural gas and propane is on what page of the codebook? -
ANSWER-351
(T/F) Propane liquid escaping from a container rapidly drops in temperature -ANSWER-True
What is L.E.L.? -ANSWER-The lowest percent of gas in the air-gas mixture that will support
combustion
Odorant is added to natural gas at the: -ANSWER-City gate station
The maximum flame temperature from the combustion of natural gas with air is: -ANSWER-
3500 F
The two main hydrocarbons which form natural gas are: -ANSWER-methane and ethane
The boiling point of propane is: -ANSWER--44 F
The boiling point of natural gas is: -ANSWER--260 F
What is the ignition temperature of propane gas compared to natural gas? -ANSWER-Lower
for propane
What is the ignition temperature of propane gas? -ANSWER-920 to 1020 F
Is natural gas heavier or lighter than air? -ANSWER-lighter
Is propane heavier or lighter than air? -ANSWER-heavier
One imperial gallon of propane weighs: -ANSWER-5.1 pounds (2.3 kilograms)
, At 60°F (15,5° C) a pound of propane produces how many cubic feet of gas? -ANSWER-8.50
Propane shall have a distinctive odour content to ensure it is readily detectable in the
atmosphere down to concentrations of: -ANSWER-20% of the lower explosive limit.
When one pound of propane burns, it releases approximately: -ANSWER-21,600 Btu
The relative density of liquid propane as compared to water is approximately: -ANSWER-0.5
Propane is a: -ANSWER-hydrocarbon
As the temperature of liquid propane in a tank increases, the vapour pressure of the
propane: -ANSWER-increases
One boiler horsepower is approximately: -ANSWER-34.000 Btuh (10 kW)
The "specific gravity of a gas (vapour)" is: -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? -ANSWER-Oxygen, Heat, and
Fuel.
What would be the easiest to control or eliminate in a
leak situation (before a fire occurs) -ANSWER-Shutting off the fuel
The products of perfect combustion of natural gas or propane with oxygen are: -ANSWER-
water vapour, carbon dioxide, heat, and light
