Exam 1: Emissions and Engine Performance Overview

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

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

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

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

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

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?

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

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

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?

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?

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.

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

Photochemical smog is produced when:

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

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

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

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

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

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

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?