Pe - A2 - Unit 09 - Environment

Front 1

The land area where water shares the spaces between soil particles with the air is known as the:

Back 1

Zone of aeration

Front 2

Ground water and surface water originate from:

Back 2

Precipitation

Front 3

Places where groundwater leaves the system to become surface water are called:

Back 3

Discharge Points

Front 4

The process whereby plants consume carbon dioxide, water and the sun energy to make food is known as the:

Back 4

Photosynthetic cycle

Front 5

Components of an ecosystem are:

Back 5

Interconnected and interdependent

Front 6

Energy in a food web originates:

Back 6

From the sun

Front 7

Organisms within an ecosystem can be divided into what three groups?

Back 7

Decomposers, consumers, and producers

Front 8

The environment consists of what elements?

Back 8

Natural and man–made elements

Front 9

Contributions to the ecosystem by the environment are in the form of these three things:

Back 9

CO2, H2O, O2

Front 10

Herbivores and/or carnivores as they are seen in the ecosystem are considered:

Back 10

Consumers

Front 11

In the ecosystem, green plants are considered to be:

Back 11

Producers

Front 12

The earth's water cycle is referred to as:

Back 12

A hydrological cycle

Front 13

Subsurface water can be divided into three sections, from top to bottom as:

Back 13

A zone of aeration, water table, a zone of saturation

Front 14

Air is predominantly composed of what two gases?

Back 14

Nitrogen and oxygen

Front 15

Organic matter is primarily deposited on the landscape by:

Back 15

Vegitation

Front 16

Parent material for soil formation has been mostly deposited by:

Back 16

Glaciers in northern North America

Front 17

Regarding noise, at what level will it reach the threshold of pain?

Back 17

140dB and above

Front 18

Personal protective devices designed to protect power plant operators from environmental pollutants, include the following equipment (choose all that apply):

a) hard hats
b) ear muffs
c) soft toed shoes or boots
d) safety boots
e) dust masks
f) breathing packs

Back 18

b) ear muffs
e) dust masks
f) breathing air packs

Front 19

Sulphur oxides in flue gas are undesirable because:

Back 19

They cause acid rain

Front 20

Damaging sound pressure levels affecting plant personnel could not be reduced by:

Back 20

Changing the frequency of the sound

Front 21

A method proven to reduce emissions of sulphur oxides in the flue gas is to:

Back 21

Scrub the flue gas with wet lime or limestone

Front 22

Nitrogen oxides in flue gas may be reduced by:

Back 22

Reducing the percentage of excess air

Front 23

Decibels are represented on what type of scale?

Back 23

A logarithmic scale (therefore they cannot be simply added)

Front 24

Sound pressure level is expressed in:

Back 24

Decibels

Front 25

Most systems used today to remove sulphur dioxide involve the use of either:

Back 25

Lime, limestone or sulphuric acid

Front 26

Carbon monoxide produced in a furnace is caused by what primary factor?

Back 26

A shortage of oxygen in the furnace

Front 27

What does a sampling and analyzing train do?

Back 27

It measures the amount of several types of emissions

Front 28

Noise monitors (sound meters) measure the decibel rating and contain __________ networks.

Back 28

Weighting

Front 29

The voltage supplied to an electrostatic precipitator is between:

Back 29

10,000 volts DC and 100,000 volts DC

Front 30

Mechanical centrifugal collectors are not suitable for the collection of:

Back 30

Fine particles

Front 31

Fly–ash is removed from bag filters by a system of:

Back 31

Rappers

Front 32

An advantage of a wet scrubber over the bag filters is that they:

Back 32

Simultaneously remove dust and gaseous pllutants

Front 33

Solid pollutants such as fly–ash are produced when burning (choose all that apply):

a) natural gas
b) heavy fuel oil
c) wood
d) coal

Back 33

b) heavy fuel oil
c) wood
d) coal

Front 34

Fly ash is normally less than:

Back 34

30 microns in diameter

Front 35

Wet scrubbers remove:

Back 35

Gases and dust only

Front 36

When combustion gases contain SO2:

( The ________ water may be treated with _______ or _________ to control __________ ______ )

Back 36

The scrubbing water may be treated with lime or dolomite to control water pH

Front 37

In an electrostatic precipitator the:

( _________ electrode is ____________ charged.)

Back 37

Discharge electrode is negatively charged

Front 38

Solid pollutants emitted from power plants are: (choose all that apply)

a) dust
b) soot
c) flyash
d) carbon monoxide
e) sulphuric dioxide
f) sulphuric acid

Back 38

a) dust
b) soot
c) flyash

Front 39

One of the main factors in considering a location for a power plant is the availability of a reliable supply of:

Back 39

Cooling water

Front 40

The pH of industrial effluent can be controlled by either:

Back 40

The addition of acid or alkaline as required

Front 41

Hazardous material is not a problem unless:

Back 41

A loss of control is experienced

Front 42

One pollutant that is particularly harmful to the earth's ozone layer is otherwise knowns as:

Back 42

CFC's (Chlorofluorocarbon)

Front 43

The two main growth nutrients carried by domestic sewage are:

Back 43

Nitrates and phosphates

Front 44

Water that exists in the soil and rock formation is known as:

Back 44

Ground water

Front 45

Phosphates are a common chemical found in:

Back 45

Detergents

Front 46

Hazardous liquids should be handled according to information supplied on:

Back 46

The MSDS

Front 47

The rate at which a fluid progresses from a spilled area is governed by its:

Back 47

Viscosity

Front 48

Chemical emulsions can be removed by: (choose all that apply)

a) settling
b) additives
c) centrifugal action
d) gravity
e) all of these

Back 48

e) all of these

Front 49

Thermally separated layers in lakes are called:

Back 49

Thermoclines

Front 50

The ability of water to dissolve oxygen:

( __________ with the __________ of water temperature)

Back 50

Decreases with the increase of water temperature

Front 51

Before released, strongly alkaline or acidic effluents from an industry must be:

Back 51

Neutralized

Front 52

Acids and other hazardous liquid spills may present a clean–up hazard because of:

Back 52

The toxic cloud produced

Front 53

Regenerable systems used for flue gas de-sulphurization produce:

Back 53

A marketable by-product

Front 54

In order for acid rain to be formed, what must be present?

Back 54

Water vapour and sunlight must be present

Front 55

Ozone is harmful at: ( __________ levels in the ____________ )

Back 55

Lower levels in the atmosphere

Front 56

Nitrogen oxides are reffered collectively as:

Back 56

NOx

Front 57

Incomplete combustion of fuel is responsible for the production of:

Back 57

Carbon monoxide

Front 58

The greenhouse effect is responsible for: ( __________ conditions)

Back 58

Drought conditions

Front 59

Greenhouse gases allow: ( _________ energy waves to _________ )

Back 59

High energy waves to pass

Front 60

The two gaseous pollutants that contribute to acid rain are:

Back 60

Sulphuric and nitric acids

Front 61

To reduce nitrogen oxides in the flue gas, the dual register burner:

Back 61

Reduces turbulence to delay combustion hence reducing tempertaures

Front 62

The greatest effect of acid is on the __________ of the plants.

Back 62

Roots

Front 63

The upper level gas that shields the earth from ultraviolet radiation is:

Back 63

Ozone

Front 64

The conversion of nitrogen to nitrogen oxides occurs at temperatures above:

Back 64

1,650˚C

Front 65

Hydrogen as an alternative fuel is considered ideal because:

Back 65

Water vapour is the only product of combustion

Front 66

The ability of operating personnel to deal with abnormal environmental conditions in a timely and efficient manner is facilitated by:

Back 66

Emergency plans

Front 67

To lessen environmental incident, operating personnel should know:

a) the material they are dealing with

b) the isolation points in the process

c) what is required to contain a release

d) the problems that an upset in a process may cause to the environment

e) all of these

Back 67

e) all of these

Front 68

Most proficient method of dealing with environmental impacts due to wastes is to:

Back 68

Avoid the generation of hazardous waste

Front 69

The acceptable design sound level heard at the nearest permanently or seasonally occupied dwelling would be stated in the:

Back 69

Noise impact statement

Front 70

When decommissioning and abandoning a processing site:

Back 70

An environmental impact study and remedial plan must be made

Front 71

Hazardous material that may migrate, leak or accumulate from storage or operating facilities is dealt with by:

Back 71

Identifying the boundaries, taking core samples of the soil to determine the circumference and depth of the area affected

Front 72

The first action of plant personnel upon finding unplanned environment excursion is:

Back 72

Minimize and control the release

Front 73

When decommissioning and abandoning a processing site:

Back 73

An environmental impact study and a remedial plan must be made

Front 74

The most beneficial an effective action in the reduction of environmental impacts is:

Back 74

Attitude

Front 75

As a plant ages, changes in operating conditions that affect the environment are the responsibility of the:

Back 75

Plant operating personnel

Front 76

A valuable tool in recognition of an environmental problem is the use of:

Back 76

WHMIS

Front 77

"Permanent action":

Back 77

Deals with and eliminates the root problem

Front 78

Soil contaminated by a hazardous material should be:

Back 78

Removed, placed in sealed containers and disposed of