Exam 14: Fire

Transfer of heat occurs by all but which of the following?

The energy release in a fire strongly depends on the volume of material consumed,but not on the chemical composition of the plants and organic debris.

Which of these drives fires in Southern California?

Which of these two fires started within a few minutes of each other on 8 October,1871?

Fire produces _______________.

The number of acres burned in the United States has increased by a factor of 5 since 1880,because with population growth comes a much higher probability that someone will start a fire.

If there is a high-pressure zone over the Rocky Mountains and a low-pressure zone in the Great Plains,winds can come rushing down the Front Range into the plains.These winds are known as _______________________.

On average,only about 18 thunderstorms are in action around the earth each hour.

Heat-expanded air _________________.

Which of the following was largely destroyed by fire in 1871?

For a log to burn completely,there must be enough outside heat conducting into the log to continue the pyrolizing process.

In 1988,a U.S.national park had fires that burned over a million acres of forest.That park was _______________.

During burning,the chemical structure of solid wood breaks apart and yields ________________.

In the late 1900s,U.S.civilian fire deaths ________________________.

Pyrolysis of cellulose produces which of the following?

The radiant heat released from fires is a form of electromagnetic radiation.

Because of the poor conductance of heat in wood,the interior of a log remains below the combustion point even when the exterior is engulfed in flames.

In effect,fire is the photosynthesis reaction in reverse.

Wet wood becomes extremely difficult to ignite because ____________________.

The most intense fires occur in ________________________.