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engr > D3 waste management > Flashcards

D3 waste management Flashcards

1
Q

What type of waste is primarily produced in households?

A) Hazardous waste
B) Industrial waste
C) Municipal solid waste
D) Electronic waste

A

C

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2
Q

Which of the following is classified as hazardous waste?

A) Food scraps
B) Plastic bags
C) Batteries
D) Paper

A

C

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3
Q

What is the most common method of waste disposal used worldwide?

A) Recycling
B) Incineration
C) Landfilling
D) Composting

A

C

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4
Q

Which waste disposal method involves burning waste at high temperatures?

A) Recycling
B) Incineration
C) Landfilling
D) Composting

A

B

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5
Q

Which of the following materials is most commonly recycled?

A) Glass
B) Plastic
C) Paper
D) Food scraps

A

C

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6
Q

What is the process of breaking down organic waste to produce nutrient-rich compost called?

A) Recycling
B) Composting
C) Incineration
D) Landfilling

A

B

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7
Q

Improper disposal of plastic waste can lead to which of the following environmental issues?

A) Soil erosion
B) Ocean pollution
C) Deforestation
D) Acid rain

A

B

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8
Q

Which greenhouse gas is commonly produced in landfills?

A) Carbon dioxide
B) Methane
C) Nitrogen
D) Oxygen

A

B

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9
Q

Which international agreement focuses on the control of hazardous waste?

A) Kyoto Protocol
B) Basel Convention
C) Paris Agreement
D) Montreal Protocol

A

B

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10
Q

In the United States, which agency is responsible for regulating waste management practices?

A) FDA
B) USDA
C) EPA
D) OSHA

A

C

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11
Q

If a community generates 200 tons of municipal solid waste per day, and 30% of this is recyclable, how much waste could be potentially diverted from landfills?

A) 60 tons
B) 80 tons
C) 100 tons
D) 120 tons

A

A

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12
Q

A factory produces chemical waste that is classified as hazardous. Which waste management practice should be avoided?

A) Landfilling
B) Incineration
C) Recycling
D) Proper disposal by a licensed facility

A

C

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13
Q

Which technology is commonly used in modern landfills to capture methane for energy?

A) Solar panels
B) Methane recovery systems
C) Anaerobic digesters
D) Incinerators

A

B

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14
Q

Which emerging technology is focused on converting plastic waste into fuel?

A) Pyrolysis
B) Gasification
C) Composting
D) Incineration

A

A

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15
Q

Which of the following is a benefit of recycling?

A) Reduces landfill waste
B) Increases greenhouse gases
C) Destroys ecosystems
D) Causes deforestation

A

A

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16
Q

What type of waste is e-waste?

A) Industrial waste
B) Organic waste
C) Electronic waste
D) Medical waste

A

C

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17
Q

Composting is best suited for which type of waste?

A) Metals
B) Electronics
C) Organic waste
D) Glass

A

C

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18
Q

Landfills are primarily used for what purpose?

A) Recycling
B) Energy production
C) Storing waste
D) Composting

A

C

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19
Q

What is leachate?

A) Wastewater in a landfill
B) Chemical runoff
C) Decomposed organic matter
D) Gas from incinerators

A

A

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20
Q

Which of the following is a biodegradable material?

A) Plastic bags
B) Batteries
C) Food waste
D) Glass

A

C

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21
Q

Which sector generates the most plastic waste?

A) Retail
B) Agriculture
C) Industrial
D) Healthcare

A

C

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22
Q

Which of the following countries is known for having the highest recycling rate?

A) United States
B) Germany
C) India
D) China

A

B

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23
Q

Which process converts organic waste into biogas?

A) Composting
B) Pyrolysis
C) Anaerobic digestion
D) Incineration

A

C

24
Q

What is the primary goal of waste management?

A) To create more landfills
B) To minimize environmental impact
C) To make new products
D) To reduce costs

A

B

25
Q

Which of the following is a characteristic of hazardous waste?

A) Biodegradability
B) Toxicity
C) High density
D) Physical stability

A

B

26
Q

What is an example of a non-biodegradable waste?

A) Paper
B) Metals
C) Plastics
D) Food scraps

A

C

27
Q

What is the difference between hazardous and non-hazardous waste?

A) Chemical makeup
B) Potential harm
C) Volume
D) Color

A

B

28
Q

What is the purpose of waste segregation?

A) Reducing waste
B) Separating waste
C) Disposing of waste
D) Recycling waste

A

B

29
Q

Which process involves separating waste into different categories?

A) Landfilling
B) Waste segregation
C) Waste treatment
D) Recycling

A

B

30
Q

Which of the following is a benefit of composting?

A) Enriches soil
B) Increases waste volume
C) Reduces recycling rate
D) Increases pollution

A

A

31
Q

Which of the following is a primary goal of sustainable waste management?

A) Increasing landfill use
B) Maximizing recycling
C) Minimizing production waste
D) Lowering costs

A

B

32
Q

What does ‘waste hierarchy’ prioritize first for waste handling?

A) Disposal
B) Recycling
C) Waste prevention
D) Energy recovery

A

C

33
Q

Which of the following can be considered as ‘green waste’?

A) Hazardous waste
B) Plastic waste
C) Organic waste
D) Electronic waste

A

C

34
Q

How does a ‘circular economy’ approach differ from a traditional waste management approach?

A) It eliminates waste entirely
B) It emphasizes reuse and recycling of materials
C) It focuses on landfill disposal
D) It reduces recycling costs

A

B

35
Q

What is the purpose of Extended Producer Responsibility (EPR) in waste management?

A) To shift disposal costs to consumers
B) To encourage manufacturers to design for easier recycling
C) To increase landfill taxes
D) To promote energy recovery from waste

A

B

36
Q

What kind of waste is primarily produced in construction and demolition activities?

A) Organic waste
B) E-waste
C) Solid waste
D) Construction and demolition (C&D) waste

A

D

37
Q

Why is ‘source separation’ important in waste management?

A) It improves the efficiency of incineration
B) It increases landfill capacity
C) It helps reduce contamination of recyclables
D) It eliminates the need for recycling

A

C

38
Q

What is an example of ‘hazardous e-waste’?

A) Old plastic containers
B) Broken glass
C) Lead-acid batteries
D) Cardboard packaging

A

C

39
Q

What is ‘vermicomposting’?

A) Using worms to compost organic waste
B) Decomposing food waste with bacteria
C) Using high heat to break down organic waste
D) Mixing organic and inorganic waste

A

A

40
Q

Why is it beneficial to reduce the use of single-use plastics?

A) They are cost-effective
B) They reduce overall waste
C) They promote better recycling
D) They eliminate waste completely

A

B

41
Q

Which of the following describes ‘closed-loop recycling’?

A) Recycling to create similar products
B) Recycling without energy loss
C) Creating different products from waste
D) Selling waste directly to consumers

A

A

42
Q

What are ‘organics’ in the context of waste management?

A) Paper and cardboard
B) Biodegradable plant and food waste
C) Plastic and metals
D) Hazardous waste

A

B

43
Q

What is the main purpose of a material recovery facility?

A) It stores waste temporarily
B) It separates recyclables from waste
C) It manages landfill operations
D) It converts waste into energy

A

B

44
Q

Which waste treatment process uses microorganisms to break down organic material without oxygen?

A) Composting
B) Aerobic digestion
C) Incineration
D) Anaerobic digestion

A

D

45
Q

What is a common byproduct of anaerobic digestion?

A) Oxygen
B) Methane
C) Carbon dioxide
D) Nitrogen

A

B

46
Q

What does ‘landfill diversion rate’ measure?

A) Amount of waste recycled
B) Percentage of waste diverted from landfills
C) Amount of waste incinerated
D) Total waste disposed in landfills

A

B

47
Q

What is the purpose of a waste audit?

A) To measure the size of landfills
B) To assess types and volumes of waste generated
C) To record population statistics
D) To evaluate household income

A

B

48
Q

How do landfill liners help in environmental protection?

A) They absorb leachate
B) They prevent contamination of soil and water
C) They make waste disposal faster
D) They increase landfill capacity

A

B

49
Q

What is the primary environmental concern with ‘open dumps’?

A) Pollution of soil and water
B) Greenhouse gas emissions
C) Increasing biodiversity
D) Costly to maintain

A

A

50
Q

What type of waste includes household items like old batteries, fluorescent bulbs, and paint cans?

A) E-waste
B) Hazardous household waste
C) Food waste
D) Green waste

A

B

51
Q

What does ‘upcycling’ mean in waste management?

A) Reusing products without changing their form
B) Turning waste into new, high-value products
C) Decomposing waste for soil enrichment
D) Burning waste for energy

A

B

52
Q

What is ‘compost tea’, and how is it used in waste management?

A) A liquid fertilizer produced from compost
B) A tea substitute made from plants
C) Liquid extracted from e-waste
D) Wastewater treatment method

A

A

53
Q

Which plastic number represents the easiest type to recycle?

A) Plastic #1 (PET)
B) Plastic #3 (PVC)
C) Plastic #5 (PP)
D) Plastic #6 (PS)

A

A

54
Q

Which process is commonly used for ‘dewatering’ sludge in wastewater treatment?

A) Aeration
B) Incineration
C) Anaerobic digestion
D) Filter press

A

D

55
Q

What type of waste would be classified as ‘biomedical waste’?

A) Municipal waste
B) Food waste
C) Industrial waste
D) Medical waste

A

D

engr (6 decks)

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