Week 2 Emission Test
Quiz
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Specialty
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University
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Practice Problem
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Medium
Nick Snow
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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Diesel emission standards were not established until the __________.
1970's
1980's
1990's
2000's
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Modern diesels emit close to __________ emissions.
10 parts per million (PPM)
15 parts per million (PPM)
20 parts per million (PPM)
Zero
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
On- and off-highway vehicle emissions from the 1970s to present have been reduced by __________.
27%
13%
29%
39%
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Technician A says legal emissions standards aim to reduce and eliminate the production of noxious substances from all internal combustion engines, except diesel-powered vehicles. Technician B says today's diesel engines also must comply with standards to reduce emissions. Who is correct?
Tech A
Tech B
Both Techs
Neither Tech
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Technician A says hydrocarbon emissions are formed as a result of fuel that have been burned completely. Technician B says fuels are classified ashydrocarbons because they are made of mostly hydrogen and carbon atoms. Who is correct?
Tech A
Tech B
Both Techs
Neither Tech
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Volatile organic compounds (VOCs) enter our atmosphere through evaporative emissions from hydrocarbon-based fuels. The chemical reaction creates__________.
Ozone
Nitrogen
Carbon
Particulate
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following statements about carbon monoxide is correct?
Carbon monoxide is created as a result of incomplete combustion of carbon-based fuels.
Higher compression pressures and excess air used in diesel combustion limit carbon monoxide formation in diesels.
Both A and B
Neither A nor B
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