Rehs Air Pollution And Noise Control

Front 1

What type of air pollutions causes bleaching of leaves in plants?

Back 1

Sulfur dioxide.

Front 2

Continuous exposure to ____ level noise is more harmful than intermittent or occasional expose.

Back 2

High level noise.

Front 3

For a pure tone (single frequency) to be produced, there must be a one-to-one correspondence between:

Back 3

Loudness and intensity.

Front 4

What are the primary pollutants?

Back 4

Carbon monoxide

Sulfur dioxide

NItrogen dioxide

Hydrocarbons

Total suspende particles

Front 5

Sources of pollutants can generally be classified as:

Back 5

Line sources, area source, or point sources.

Front 6

Turbulence is the wind characteristic that is:

Back 6

The most effective mechanism for the dispersion or dilution of a cloud or plume of pollutants.

Front 7

___ can be formed as a result of the sun's action on nitrogen oxides and hydrocarbons.

Back 7

Ozone.

Front 8

Glazing, silvering, or bronzing on the underside of a leaf is evidence that injury has occurred by:

Back 8

Peroxyacyl nitrates.

Front 9

TRUE or FALSE

Areas on the windward side of mountain ranges can expect less precipitation due to the forced rising, expansion, and cooling of moving air masses.

Back 9

False.

Front 10

Which of the following are not major sources of sulfur dioxide pollution?

-Metal smelters

-Coal and oil burning power plants

-Refineries

-Electrical substations

Back 10

Electrical substations

Front 11

The normal change in temperature with altitude is:

Back 11

Noted as a decrease due to expansion and thus adiabatic cooling of air.

Front 12

Some specific measures that can be used to reduce the effect of highway noise include:

Back 12

-Setting lower speed limits for certain sections of a highway.

-Establishing alternate truck routes.

-Enclosure of highways going through residential areas.

Front 13

Precipitation accomplishes an effective cleansing process of pollutants in the atmosphere by:

Back 13

-Accumulation of small particles in the formation of raindrops or snowflakes in clouds.

-The washing out of scavenging of large particles by falling raindrops or snowflakes.

-Removal of gaseous pollutants by dissolution and absorption.

Front 14

____ have been known to cause crippling skeletal damage to cattle through ingested contaminated vegetation.

Back 14

Fluorides.

Front 15

Photochemical smog has been reported in congested areas with:

Back 15

High motor vehicle traffice.

Front 16

The "Ozone Hole" was first noticed in:

Back 16

Antarctica.

Front 17

TRUE or FALSE

Sound absorbing materials absorb low frequency sounds much more effectively than high frequency sounds.

Back 17

False.

Front 18

The accumulation or increased concentration of a continuously emitted pollutant is:

Back 18

Inversely proportional to wind speed.

Front 19

What size particle can reach the lowest parts of the lung?

Back 19

Less than 3 microns.

Front 20

TRUE or FALSE

Particles larger than 10 microns can penetrate easily into the respiratory tract.

Back 20

False.

Front 21

Which component of clean, dry air has the smallest value?

Back 21

Sulfur dioxide.

Front 22

Air pollution is the presence of ___ in the outside air in the amounts that are injurious or detrimental to humans, animals, plants, or property.

Back 22

Solids, gases, liquids.

Front 23

The frequency of a sound determines its ___.

Back 23

Pitch.

Front 24

TRUE or FALSE

Dry cotton ear plugs are just as effective against noise control as expensive fitted ear plugs and earmuffs.

Back 24

FALSE.

Front 25

___ is the largest source of air pollution.

Back 25

Transportation.

Front 26

The meteorological elements that have the most direct and significant effects on the distribution of air pollutants are:

Back 26

Solar radiation, wind speed and direction, precipitation and stability.

Front 27

A deterioration in the ozone layer of the stratosphere can cause an increase in ____ ____ reaching the earth.

Back 27

Ultraviolet radiation.

Front 28

What material is known to reflect sound?

Back 28

Rubber tiles.

Front 29

____ react differently to noise depending on age, sex, and socioeconomic background.

Back 29

Individuals.

Front 30

The Ringlemann chart method of evaluating particle pollution in the atmosphere is being replaced by a determination of the:

Back 30

Percent opacity.

Front 31

CFCs are widely used because they are:

Back 31

Chemically stable.

Front 32

The speed with which sound travels through a particular medium is dependent on:

Back 32

The compressibility and density of the medium.

Front 33

Impurities in combustible hydrocarbons (coal and oil) combine with oxygen to produce ___ when burned.

Back 33

Sulfur dioxide.

Front 34

In the United States, the Ringlemann smoke chart consists of how many rectangular charts?

Back 34

Four.

Front 35

A hammering type noise often heard in a plumbing system is usually due to:

Back 35

A quick-closing valve requiring installation of an air chamber.

Front 36

____ involves the chemistry, physics, and dynamics of the atmosphere and includes many direct effects of the atmosphere on the earth's surface, ocean, and life.

Back 36

Meteorology.

Front 37

The Montreal Protocol categorizes ___ an ___ in two classes based on their ozone-depiction potential.

Back 37

CFCs and halons.

Front 38

The amount of sound energy a material can absorb is a function of its absorption coefficient at a specified_____.

Back 38

Frequency.

Front 39

The pitch of a sound is determined primarily by:

Back 39

Frequency.

Front 40

Air is vital to existence. In fact, humans breathe in a day's time an average of:

Back 40

35 lbs of air.

Front 41

For workers, a sound level above ___ dBA should be considered unsafe for daily exposure over a period of months.

Back 41

90 dBA.

Front 42

Animals are primarily affected by the fluorides in the air via:

Back 42

through ingesting vegetation.

Front 43

TRUE or FALSE

In general terms, it is safe to assume that any two identical sound levels will have the effect of increasing the overall level by 10 dB.

Back 43

FALSE.

Front 44

TRUE or FALSE

Chlorofluorocarbons increase the amount of ozone in the atmosphere.

Back 44

FALSE.

Front 45

The ___ of a sound wave is the energy transferred per unit time (sec) through a unit area normal to the direction of propagation.

Back 45

Intensity.

Front 46

The effects of air pollution are influenced by:

Back 46

Wind speed & direction, sunlight, precipitation.

Front 47

Long-term wind data of a given locations are presented graphically in the form of a:

Back 47

Wind rose.

Front 48

The major factors related to hearing loss are:

Back 48

-Time duration of exposure and repeated impact.

-Intensity of sound waves.

-Frequency content of sound.

Front 49

How are total suspended particles measured?

Back 49

Collection and weighing.

Front 50

The Safe Alternatives Policy program does what?

Back 50

Specifies alternatives for all ozone-depleting substances.

Front 51

A major effect of stratospheric ozone layer depletion is:

Back 51

increase in incidence of non-melanoma skin cancer.

Front 52

The information needed to use an air quality model includes:

Back 52

Meteorological data, pollutant concentration data, and source emissions data.

Front 53

Almost all sound contains multiple ____.

Back 53

Frequencies.

Front 54

A primary pollutant is:

Back 54

one that is found in the atmosphere in the same form as it exists.

Front 55

Stability of the atmosphere is:

Back 55

-The ability to enhance or suppress vertical air motions.

-Largely determined by the vertical temperature profile.

Front 56

TRUE or FALSE

The concentration resulting from a continuous emission of a pollutant is directly proportional to wind speed.

Back 56

False.

Front 57

___ is considered to be the least damaging to the stratospheric ozone later.

Back 57

HCFCs.

Front 58

Air pollutants may be in the form of ___.

Back 58

Microorganisms.

Front 59

TRUE or FALSE

The precise levels at which specific air pollutants become a health hazard are relatively easy to establish by existing surveillance systems.

Back 59

False.

Front 60

A ___ is a dimensionless unit to express physical intensity or sound pressure levels.

Back 60

decibel.

Front 61

Injury to plants due to ___ shows up as flecks, stipple and bleaching, tip burns on conifers, and growth suppression.

Back 61

Ozone.

Front 62

The distance that a sound wave travels in one cycle or period is the:

Back 62

Wavelength of the sound.

Front 63

TRUE or FALSE

The United States Environmental Protection Agency has the sole responsibility for implementing "The Noise Control Act of 1972".

Back 63

False.

Front 64

Halon-1211 is used primarily in ___.

Back 64

Portable fire extinguishers.

Front 65

____ and ____ are considered natural sources of air pollution.

Back 65

Bacteria and spores.

Front 66

Ozone reduces the useful life of all of the following except:

Back 66

Nylon.

Front 67

If 10 decibels is 10 times more intense than one decibel, how many time more intense is 20 decibels than one decibel.

Back 67

100 times

Front 68

TRUE or FALSE.

A primary pollutant is one that is formed in the atmosphere as a result of chemical reactions.

Back 68

False.

Front 69

Particle size selective inlets are used to separate particles above and below 2 to 3 microns in size on:

Back 69

High volume samplers.

Front 70

Which of the following inversions develops at night under conditions of relatively clear skies and very light winds?

Back 70

Radiational inversion.