250+ TOP MCQs on Collection and Disposal of Dry Refuse and Answers

Waste Water Engineering Multiple Choice Questions on “Collection and Disposal of Dry Refuse”.

1. _________ is the separation of biodegradable waste from non biodegradable waste for proper disposal and recycling.
a) Separation
b) Segregation
c) Removal
d) Composting
Answer: b
Clarification: Segregation is the separation of biodegradable waste from non-biodegradable waste for proper disposal and recycling. Improper segregation may cause mixing in landfills.

2. What is the amount of waste generated in urban India per day?
a) 155500
b) 188500
c) 175800
d) 168500
Answer: b
Clarification: Urban India produces up to 188,500 tonnes of waste per day. Segregation and disposal is a major part of disposing this waste.

3. Proper segregation can lead to mixing in landfills.
a) True
b) False
Answer: b
Clarification: Improper segregation may cause mixing in landfills. Methane gas is likely to be released in such circumstances, which is one of the most harmful greenhouse gases.

4. Methane gas is released due to ______
a) Proper segregation
b) Improper segregation
c) Disposal
d) Dumping
Answer: b
Clarification: Methane gas is likely to be released in such circumstances where improper mixing tales place, which is one of the most harmful greenhouse gases.

5. Garbage is a liquid waste.
a) True
b) False
Answer: b
Clarification: Garbage is not a liquid waste. It is a solid or semi-solid waste from preparing, cooking food and serving, etc. It does not include rubbish.

6. _________ is the solid or semi-solid waste incidental to preparing, cooking, and serving food and cleaning of food service items.
a) Rubbish
b) Waste
c) Garbage
d) Dirt
Answer: c
Clarification: Garbage is classified into two types. They are edible and non-edible. Edible garbage can be fed to animals, like scrap meat and vegetables.

7. _______ consists of wastes originating from various food facilities.
a) Compost
b) Manure
c) Rubbish
d) Garbage
Answer: c
Clarification: Rubbish consists of wastes which originate in food service facilities, barracks, wards, quarters and offices. Rubbish may be classified as combustible or non-combustible depending upon whether or not it can be burned.

8. How many types of rubbish waste are present?
a) 1
b) 2
c) 3
d) 4
Answer: b
Clarification: Rubbish may be classified as combustible or non-combustible depending upon whether or not it can be burned.

9. How many types of garbage wastes are present?
a) 2
b) 3
c) 4
d) 5
Answer: a
Clarification: Garbage is classified into two types. They are edible and non-edible. Edible garbage can be fed to animals, like scrap meat and vegetables. Non-edible garbage cannot be fed to animals, like tea leaves, bones, etc.

10. What is the minimum depth of the landfill required?
a) 1.5 m
b) 1.6 m
c) 1.7 m
d) 1.8 m
Answer: d
Clarification: Sites should be selected where the soil can be excavated to a minimum depth of 1.8 m. Clay-like soils or any soil that can form a seal over the compacted refuse can be acceptable.

11. What is the area of land required for 4000 people for disposal of waste?
a) 1.25 hectares
b) 1.5 hectares
c) 1.75 hectares
d) 2.0 hectares
Answer: a
Clarification: There should be at least 1.25 hectares per year for each 4000 personnel when the fill is to be 1.8 meters (m) deep.