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Physical & Chemical Principles > ENVIRONMENTAL ENGINEERING > Flashcards

ENVIRONMENTAL ENGINEERING Flashcards

0
Q

part of the atmosphere where most of photochemical reaction take place.

a. stratosphere
b. mesosphere
c. ionosphere
d. trophosphere

A

b. mesosphere

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1
Q

the process where more harmful substances and produced from less harmful ones

a. synergism
b. eutrophication
c. biomagnification
d. thermal stratification

A

a. synergism

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2
Q

it is defined as the role of the organisms in the community

a. biotic factors
b. biomes
c. trophic level
d. niche

A

c. trophic level

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3
Q

process where decomposers return back the nitrogen to the soils through the remains and waste of plants and animals.

a. ammonification
b. nitrogen fixation
c. denitrification
d. ammonolysis

A

a. ammonification

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4
Q

involves the accumulation of trace metals through each species of the food chain

a. biomagnification
b. thermal inversion
c. anaerobic respiration
d. eutrophication

A

b. biomagnification

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5
Q

process of converting nitrogen gas to ammonia is called

a. ammonification
b. denitrification
c. nitrogen fixation
d. ammonolysis

A

c. nitrogen fixation

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6
Q

organisms that belong to the second trophic level.

a. omnivores
b. herbivores
c. carnivores
d. detritivores

A

c. carnivores

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7
Q

these organisms feed on the waste of the ecosystem.

a. omnivores
b. herbivores
c. carnivores
d. detritivores

A

d. detritivores

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8
Q

biomes are distinguished or identified by its

a. dominant plant life
b. climate
c. type of plants and animals
d. geographic location

A

a. dominant plant life

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9
Q

denitrification is carried out when bacteria break down nitrates and release nitrogen gas. what are these bacteria?

a. anaerobic bacteria
b. cyanobacteria
c. rhizobium
d. aerobic bacteria

A

a. anaerobic bacteria

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10
Q

total uptake of chemicals by an organism from food items as well as via mass transport of dissolved chemicals.

a. bioaccumulation
b. biomagnification
c. bioconcentration
d. all of these

A

a. bioaccumulation

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11
Q

the permissible color for domestic water supply in ppm is

a. 5
b. 10
c. 25
d. 20

A

d. 20

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12
Q

the resistance of water to the passage of light through it is measure of the

a. color
b. turbidity
c. hardness
d. dissolved gases

A

b. turbidity

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13
Q

the total solids in water are due to the presence of

a. suspended and dissolved solids
b. suspended and floating solids
c. colloidal and settleable solids
d. colloidal and bacterial load

A

a. suspended and dissolved solids

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14
Q

which of the following is NOT a physical characteristic of wastewater?

a. odor
b. turbidity
c. color
d. hardness

A

d. hardness

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15
Q

gas responsible for the rotten egg odor of waste water.

a. ammonia
b. amines
c. mercaptans
d. hydrogen sulfide

A

d. hydrogen sulfide

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16
Q

a trace metal which causes the itai-itai disease is

a. cadmium
b. silver
c. mercury
d. chromium

A

a. cadmium

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17
Q

it is a phenomenon that results in the overabundance of algae growth in bodies of water. it is also the natural process of nutrient enrichment that occurs over time in a body of water.

a. biomagnification
b. thermal inversion
c. anaerobic respiration
d. eutrophication

A

d. eutrophication

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18
Q

the red brownish color of water is due to the presence of dissolved impurities of

a. bicarbonate
b. sulphate
c. arsenic
d. iron and manganese

A

d. iron and manganese

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19
Q

the alkalinity of wastewater is due to the presence of the following EXCEPT

a. ammonia
b. dissolved CO2
c. carbonate
d. bicarbonate

A

b. dissolved CO2

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20
Q

hardness of water is usually expressed as part per million of

a. MgSO4
b. Na2CO3
c. CaCO3
d. CaCl2

A

c. CaCO3

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21
Q 
which of the following maybe used to measure the assimilative capacity of a stream?
A. BOD
B. COD
C. ThOD
D. TOC
A

A. BOD

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22
Q 
Type of wastewater treatment that employs physical and chemical treatment methods to remove or reduce a high percentage of suspend solids and toxic materials.
A. Primary treatment
B. Secondary treatment 
C. Tertiary treatment 
D. Minor treatment
A

A. Primary treatment

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23
Q 
Process whereby coarse matter (suspend or floating) of a certain size can be strained out of flowing water with the aid of bars, fine wires or rocks.
A. Screening 
B. Flotation
C. Sedimentation
D. Flocculation
A

A. Screening

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24
Q 
Removal of all settleable particles rendered settleable under the influence of gravity, basically the theory of gravity under the influence of which all particles heavier than water tend to settle down.
A. Screening 
B. Flotation
C. Sedimentation
D. Flocculation
A

C. Sedimentation

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25
Q 
Which of the following is NOT used as adsorbent material?
A. Activated charcoal
B. Fuller's earth
C. Silica gel
D. Water
A

D. Water

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26
Q 
Insufficient washing of sand grains in a rapid sand filter causes
A. Air-binding
B. Mud balls
C. Shrinkage of media
D. Expansion of media
A

B. Mud balls

27
Q 
Which of the following is NOT use for the disinfection of water?
A. Ozone 
B. Chlorine 
C. Ultra-violet rays
D. Sulfuric acid
A

D. Sulfuric acid

28
Q 
Most aquatic organisms can survive in a pH range of about 
A. pH = 3 to 7
B. pH = 7 to 11
C. pH = 6 to 9
D. pH = 5 to 8
A

C. pH = 6 to 9

29
Q 
Most commonly used coagulating agent.
A. Aluminum sulfate
B. Ferric sulfate 
C. Ferric chloride
D. Sulfuric acid
A

A. Aluminum sulfate

30
Q 
Nitrates more than 50 ppm in water leads to a disease called 
A. Typhoid 
B. Mathenoglobenemia
C. Gastroenteritis
D. Mottled tee
A

B. Mathenoglobenemia

31
Q 
The process of killing infective bacteria in water is called 
A. Coagulation
B. Screening
C. Sterilization
D. Sedimentation
A

C. Sterilization

32
Q 
The amount of chlorine available in water after the disinfection is called
A. Free chlorine
B. Residual chlorine
C. Free available chlorine
D. Combines available chlorine
A

B. Residual chlorine

33
Q 
What substance in water is removed by Lime Soda Process?
A. Odor and taste 
B. Permanent hardness
C. Iron and manganese
D. Temporary hardness
A

D. Temporary hardness

34
Q 
An electromechanical process used in the removal of colloidal matter in wastewater through reduction of electrostatic chat purges surrounding the solids
A. Coagulation
B. Neutralization 
C. Flocculation
D. Precipitation
A

A. Coagulation

35
Q 
These are accumulated solids removed from separation equipment such as settling tanks and clarifies.
A. Flocs
B. Suspended solids
C. Total dissolved solids
D. Sludge
A

D. Sludge

36
Q 
Water treatment that destroys disease-causing bacteria, nuisance bacteria, parasites and other organisms and removes soluble iron, manganese and hydrogen sulfide from water.
A. Disinfection
B. Chlorination
C. Flocculation
D. Coagulation
A

B. Chlorination

37
Q 
A neurological disease characterized by trembling, inability to walk and speak and even serious convulsions that can lead to death due ingestion of mercury
A. Scurvy
B. Minimata
C. Itai-itai
D. Argyria
A

B. Minimata

38
Q 
Type of wastewater treatment that employs biological methods to remove fine suspended, colloidal and dissolved organics by biochemical oxidation.
A. Primary treatment 
B. Secondary treatment 
C. Tertiary treatment 
D. Minor treatment
A

B. Secondary treatment

39
Q

A wastewater with a BOD/COD = 1 indicates that
A. Chemical treatment is required
B. Biological treatment is most practical
C. The wastewater is highly polluted
D. Does not indicate anything

A

B. Biological treatment is most practical

40
Q 
A continuous re-circulating aerobic biochemical process that keeps cells in suspended growth
A. Activated sludge process
B. Trickling filters
C. Stabilization ponds
D. Aerated lagoon
A

A. Activated sludge process

41
Q 
When a sample of water is added to a medium of agar and incubated at 37 deg C for 24 hours, colonies of bacteria formed are countered. This test is called
A. Total count test
B. Presumptive test
C. Confirmation test
D. Completed test
A

A. Total count test

42
Q 
Aeration of water is done to remove
A. Suspended impurities 
B. Floating impurities
C. Dissolved salts
D. Dissolved gases
A

D. Dissolved gases

43
Q 
Legislation that presents the revised water usage and classification.
A. DENR Administrative Order No. 34
B. Philippine Clean Water Act of 2004
C. Water code of the Philippines 
D. Republic Act 9003
A

A. DENR Administrative Order No. 34

44
Q 
Class of water intended for primary contact recreation such as bathing, swimming, skin diving, etc.
A. Class AA
B. Class A
C. Class B
D. Class C
A

C. Class B

45
Q 
What is atmospheric condition when the lapse rate is >10 deg C/km?
A. Adiabatic
B. Subadiabatic 
C. Superadiabatic
D. None of these
A

C. Superadiabatic

46
Q 
A global treaty that aims to regulate emissions of greenhouse gases.
A. Stockholm convention
B. Montreal protocol
C. Kyoto protocol
D. None of these
A

C. Kyoto protocol

47
Q 
This provides the blue print for action towards sustainable development 
A. Earth summit
B. Agenda 21
C. Montreal draft
D. POPs Convention
A

B. Agenda 21

48
Q 
Generic term used to describe the particulate matter carried in the effluent gases from furnaces burning fossil fuels
A. PM10
B. TSP
C. fly ash
D. ESP
A

C. fly ash

49
Q 
These reddish brown oxides in concentrated form may produce an abnormal accumulation of fluids in the lungs.
A. COx
B. SOx 
C. NOx
D. TSP
A

C. NOx

50
Q 
These are compartments that use gravitational force to extract dust and mist and typically used only for larger particles.
A. Electrostatic precipitator
B. Settling chamber
C. Cyclone device
D. Wet collectors
A

B. Settling chamber

51
Q 
A global treaty that aims to diminish and eventually phase out chorofluorocarbons. 
A. Stockholm convention
B. Montreal protocol
C. Kyoto protocol
D. None of these
A

B. Montreal protocol

52
Q 
It is very unstable gas used for disinfection, a very powerful oxidant capable of oxidizing 200 to 300 times more than chlorine and can reduce complex taste, odor and color.
A. Hypochlorite
B. Hydrogen peroxide
C. Ozone
D. Fluorine
A

C. Ozone

53
Q 
A phenomenon where a cold layer of air becomes trapped by a layer of warmer air above due to a lack of wind circulation or the presence of certain topographical features, such as mountains, resulting to air pollution being trapped in the lower, cooler layers of the troposphere,
A. Global warming
B. Thermal inversion
C. Greenhouse effect
D. Anaerobic respiration
A

B. Thermal inversion

54
Q 
It is described as the cloud of air pollution trapped by thermal inversion.
A. CFC
B. Smog
C. NOx
D. SO2
A

B. Smog

55
Q 
A global treaty that aims to protect human health and the environment from persistent organic pollutants.
A. Stockholm convention
B. Montreal protocol 
C. Kyoto protocol
D. None of these
A

A. Stockholm convention

56
Q 
PAN is a powerful lachrymator or tear producer formed from unburned hydrocarbons, aldehydes, nitrogen oxides and oxygen. PAN stands for
A. Peroxyacetyl nitrate
B. Peroxyallyl nitrate
C. Peroxyamyl nitrate
D. Peroxyalkyl nitrate
A

A. Peroxyacetyl nitrate

57
Q 
Component of CFC's that causes destruction of 100,000 molecules of ozone. 
A. Carbon
B. Chlorine
C. Fluorine
D. Hydrogen
A

B. Chlorine

58
Q 
It is used as bonding agents in building and furniture construction which may cause drowsiness, nausea and headaches when exposed to low level concentration. 
A. Formaldehyde
B. Radon
C. PAN
D. CO
A

A. Formaldehyde

59
Q 
The liquid produced when water percolates through any permeable material. It can contains either dissolved or suspended material, or usually both, anoxic, acidic, rich in organic acid groups, sulfate ions and with high concentrations of common metal ions especially iron.
A. Sludge
B. Leachate
C. Bottom ash 
D. All of these
A

B. Leachate

60
Q 
Recyclable material labeled as no. 3
A. PET
B. PS
C. PVC
D. HDPE
A

C. PVC

61
Q 
It is defined as the controlled decomposition of organic materials, such as leaves, grass, and food scraps.
A. Composting
B. Putrefaction
C. Incineration
D. Recycling
A

A. Composting

62
Q 
Type of recycling that involves recovery of chemicals or energy from post consumer waste materials.
A. Primary
B. Secondary
C. Tertiary
D. Quaternary
A

C. Tertiary

63
Q 
Ecological solid waste management Act of 2000 is otherwise known as 
A. RA 6969
B. RA 8749
C. RA 9003
D. RA 9275
A

C. RA 9003

64
Q 
Which of the following is NOT classified as heavy industry in the list of environmentally critical projects?
A. Iron and steel industry
B. Non-ferrous metal industry
C. Smelting plants
D. Forestry projects
A

D. Forestry projects

Physical & Chemical Principles (6 decks)

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