Enegy And Society II - SS3 Physics Past Questions and Answers - page 2
11
What is the primary use of natural gas in the United States?
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A
Electricity generation
B
Transportation
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C
Industrial processes
D
Residential heating
12
Which of the following is a potential environmental impact of natural gas production?
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A
Increased water pollution
B
Decreased air pollution
C
Increased biodiversity
D
Increased soil fertility
15
Which of the following is not a product of the complete combustion of hydrocarbon fuels?
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A
Carbon dioxide
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B
Water
C
Nitrogen gas
D
Carbon monoxide
16
Incomplete combustion of hydrocarbons can produce:
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A
Carbon dioxide
B
Water
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C
Carbon monoxide
D
Both A) and B)
17
The stoichiometric air-fuel ratio for the complete combustion of a hydrocarbon fuel is:
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A
The ratio of air to fuel that produces the maximum heat output
B
The ratio of air to fuel that produces the minimum heat output
C
The ratio of air to fuel that produces a complete combustion
D
The ratio of air to fuel that produces incomplete combustion
18
The heat of combustion of a fuel:
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A
Is the amount of heat released when the fuel is burned completely
B
Is the amount of heat required to ignite the fuel
C
Is the amount of heat required to convert the fuel from a solid to a liquid state
D
Is the amount of heat required to convert the fuel from liquid to gaseous state
19
The main combustion products of diesel fuel are:
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A
Carbon monoxide and water
B
Carbon dioxide and water
C
Carbon monoxide and nitrogen oxides
D
Carbon dioxide and nitrogen oxides
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