Deck 1: Emissions and Engine Performance Overview

Question 1

Photochemical smog is produced when:

A) oxides of nitrogen and carbon dioxide are exposed to sunlight together
B) oxides of nitrogen and unburned hydrocarbons are exposed to sunlight together.
C) oxides of nitrogen and carbon monoxide are exposed to sunlight together
D) carbon monoxide and unburned hydrocarbons are exposed to sunlight together

Answer 1

B

Question 2

During perfect combustion in an internal combustion engine, the only output would be:

A) H₂O and CO₂
B) HC and CO
C) H₂O and CO
D) CO₂ and HC

Answer 2

A

Question 3

Under ideal combustion, all the oxygen and all the hydrocarbons are chemically recombined to produce carbon monoxide and water.

Answer 3

False

Question 4

Technician A says FTP is a test that sets the maximum emission levels based on federal government regulations and utilizes a constant volume sampling of exhaust gases. Technician B says EPA is a federal agency in charge of writing and implementing policies related to environmental protection. Who is correct?

A) A only
B) B only
C) both A and B
D) neither A nor B

Question 5

Technician A says that nitrogen can combine in the combustion chamber with oxygen to form nitrogen oxides, a regulated air pollutant. Technician B says that nitrogen makes up 78 percent of the air that we breathe every day. Who is correct?

A) A only
B) B only
C) both A and B
D) neither A nor B

Question 6

Technician A says the EPA authorized the use of OBD testing as a replacement for tailpipe and dynamometer testing of emissions output beginning in 1996. Technician B says the EPA authorized the use of OBD testing as a replacement for tailpipe and dynamometer testing of emissions output beginning in 2002.

A) A only
B) B only
C) both A and B
D) neither A nor B

Question 7

Excessive buildup of carbon deposits in the combustion chamber could:

A) increase the production of NO_X
B) increase the cylinder compression ratio
C) cause premature ignition of the air/fuel mixture
D) all of the above

Question 8

The I/M240 testing readings of HC, CO, and NO_X are provided in grams per mile.

Question 9

The ASM 50/50 test is an enhanced inspection and maintenance program performed in lieu of the full I/M240 test.

Question 10

ASM 25/25 test is an enhanced inspection and maintenance program performed in lieu of the full I/M240 test.

Question 11

The EPA regulates eight principal pollutants.

Question 12

Volatile organic compounds are biodegradable and will not harm the environment.

Question 13

Particulate matter (PM) is generally referred to as soot and smoke.

Question 14

One of the six principal air pollutants regulated by the EPA is nitrogen dioxide.

Question 15

Technician A says one of the six principal air pollutants regulated by the EPA is nitrogen. Technician B says carbon dioxide contributes to global warming.

A) A only
B) B only
C) both A and B
D) neither A nor B

Question 16

Technician A says under ideal combustion, all the nitrogen entering the combustion chamber will leave the combustion chamber unchanged. Technician B says under ideal combustion, all the oxygen and all the hydrocarbons are chemically recombined to produce carbon dioxide and water. Who is correct?

A) A only
B) B only
C) both A and B
D) neither A nor B

Question 17

The least progress has been made on reducing ground-level ozone of the six major pollutants tracked by the EPA.

Question 18

Particulate matter (PM) is a microscopic form of gaseous air pollution.

Question 19

When unburned hydrocarbons are exposed to oxides of nitrogen and sunlight, what is produced?

A) particulate matter
B) carbon monoxide
C) both A and B
D) photochemical smog

Question 20

If the fuel filler cap leaks, what emissions gas will be allowed to enter the atmosphere?

A) HC
B) CO
C) CO₂
D) NO_X

Question 21

What emission in the exhaust stream is the result of unburned fuel leaving the combustion chamber?

Question 22

Of the six major pollutants tracked by the EPA, which has had the least progress made on reducing ground level amounts?

Question 23

What is a microscopic form of solid air pollution that can be either solid or atomized liquid matter and that is generally referred to as soot and smoke?

Question 24

States may perform what other emission test besides the I/M240 test?

Question 25

The I/M240 test evolved from what federal test procedure?

Question 26

At what temperature does NO_X begin to form in the combustion chamber?

Question 27

What is the European term for the point at which the fuel mixture burns the most efficiently?

Question 28

What are the two enhanced inspection and maintenance programs performed in lieu of the full I/M240 test?

Question 29

The ideal relationship of gases in the internal combustion gasoline engine is 14.7:1. What term is used to describe this?

Question 30

CO can have what physical effect on the human body?

Question 31

The United States emits what volume of air pollution annually?

Question 32

What federal agency has required that an inspection and maintenance (I/M) program be implemented for areas of the country that are considered non-attainment zones?

Question 33

On what vehicle model year and when did the EPA authorize the use of OBD testing as a replacement for tailpipe and dynamometer testing of emissions?

Question 34

How are the emission levels recorded during the I/M240 test?

Question 35

What is particulate matter, and what other names are used to describe it?

Question 36

What are the negative consequences of CO₂ emissions from an internal combustion engine?

Question 37

The EPA regulates what six major pollutants?

Question 38

What are the by-products of ideal combustion in the internal combustion gasoline engine?

Question 39

What is the generic term given to a group of highly reactive gases that contain nitrogen and oxygen in varying amounts?

Question 40

What are volatile organic compounds, and how are they emitted from a motor vehicle?