Exam 1: Emissions and Engine Performance Overview

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

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

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

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

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

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?

Carbon deposits in the combustion chamber can :

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

The United States emits what volume of air pollution annually?

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

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

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

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

CO can have what physical effect on the human body?

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?

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

Photochemical smog is produced when:

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

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

NO_X begins to form in the combustion chamber when temperatures rise above what level?