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Chemical Engineering Concepts > Environmental Engineering > Flashcards

Environmental Engineering Flashcards

1
Q

It is known as Water Quality Guidelines and General Effluent Standards of 2016

A

DAO No. 2016-08

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2
Q

Philippine Clean Water Act of 2004

A

RA 9275

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3
Q

Class of fresh water intended primarily for waters having watersheds, which are uninhabited and/or declared as protected areas

A

Class AA

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4
Q

Class of fresh water intended as sources of water supply requiring conventional treatment (coagulation, sedimentation, filtration and disinfection) to meet the latest PNSDW

A

Class A

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5
Q

Class of fresh water intended for primary contact recreation (bathing, swimming, etc.)

A

Class B

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6
Q

Class of fresh water for the propagation and growth of fish and other aquatic resources; for boating, fishing, or similar activities; for agriculture, irrigation, and livestock watering.

A

Class C

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7
Q

Class of fresh water for navigable waters

A

Class D

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8
Q

Class of fresh water for protected waters designated as national pr local marine parks, reserves, sanctuaries, and other areas; suitable for shellfish harvesting for direct human consumption.

A

Class SA

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9
Q

Class of fresh water suitable for commercial propagation of shellfish and intended as spawning areas for milkfish; for ecotourism and recreational activities.

A

Class SB

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10
Q

Class of fresh water used for propagation and growth of fish and other aquatic resources and intended for commercial and sustenance fishing; marshy and/or mangrove areas declared as fish and wildlife sanctuaries.

A

Class SC

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11
Q

Class of fresh water for navigable waters

A

Class SD

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12
Q

% Salinity for freshwater

A

< 500 ppm

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13
Q

% Salinity for marine water

A

< 30 ppt

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14
Q

Compound responsible for the fishy odor of wastewater

A

Amines

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15
Q

Compound responsible for the ammoniacal odor of wastewater

A

Ammonia

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16
Q

Compound responsible for the decayed fish odor of wastewater

A

Diamines

17
Q

Compound responsible for the rotten egg odor of wastewater

A

Hydrogen Sulfide

18
Q

Compound responsible for the skunk odor of wastewater

A

Mercaptans

19
Q

Compound responsible for the rotten cabbage odor of wastewater

A

Organic Sulfide

20
Q

Compound responsible for the fecal odor of wastewater

A

Skatole

21
Q

What is generally the color of fresh sewage?

A

Grayish

22
Q

What is generally the color of septic sewage?

A

Black

23
Q

The resistance of water to the passage of light through it is a measure of _______________

A

Turbidity

24
Q

Dissolved oxygen in water is reduced during

a. winter
b. summer
c. spring
d. autumn

A

summer

25
Q

The color of wastewater containing little or no dissolved oxygen is

a. gray
b. black
c. brown
d. reddish brown

A

black

26
Q

In the determination of BOD, the reaction takes place at

a. 20 C
b. 30 C
c. 40 C
d. 50 C

A

20 C

27
Q

In the determination of BOD, the reaction takes place in the dark because

a. the microorganisms are sensitive to light.
b. oxygen is sensitive to light.
c. the reaction is enhanced in the dark.
d. algae may be present and produce oxygen.

A

algae may be present and produce oxygen.

28
Q

It is the phenomenon that results in the overabundance of algae growth in bodies of water.

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

A

eutrophication

29
Q

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

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

A

biomagnification

30
Q

A trace metal which causes Itai-itai diseases is

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

A

cadmium

31
Q

A trace metal which causes Minimata diseases is

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

A

mercury

32
Q

Type of wastewater treatment that employs physical and chemical treatment methods to remove or reduce a high percentage of suspended solids and toxic materials.

a. primary treatment
b. secondary treatment
c. tertiary treatment
d. minor treatment

A

primary treatment

33
Q

Hard water can be softened by

a. letting the calcium or magnesium ions settle out
b. passing it through an ion exchanger
c. chlorination
d. filtration

A

passing it through an ion exchanger

34
Q

Ecological Solid Waste Act of 2000 is otherwise known as

a. RA 6969
b. RA 8749
c. RA 9003
d. RA 9275

A

RA 9003

35
Q

Clean Air Act of the Philippines is otherwise known as

a. RA 6969
b. RA 8749
c. RA 9003
d. RA 9275

A

RA 8749

36
Q

Toxic Substances and Hazardous and Nuclear Wastes is otherwise known as

a. RA 6969
b. RA 8749
c. RA 9003
d. RA 9275

A

RA 6969

37
Q

A global treaty that aims to diminish and eventually phase out chlorofluorocarbons.

a. Stockholm Convention
b. Kyoto Protocol
c. Montreal Protocol
d. None of these

A

Montreal Protocol

38
Q

Regulates emissions of greenhouse gases

a. Stockholm Convention
b. Kyoto Protocol
c. Montreal Protocol
d. None of these

A

Kyoto Protocol

39
Q

This aims to protect human health and the environment from persistent organic pollutants.

a. Stockholm Convention
b. Kyoto Protocol
c. Montreal Protocol
d. None of these

A

Stockholm Convention

Chemical Engineering Concepts (5 decks)

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