This set of Energy & Environment Management Multiple Choice Questions & Answers (MCQs) focuses on “Solid Waste”.
1. Which was the first city to an established system of waste removal?
Explanation: In ancient cities, food scraps and other waste were simply thrown onto the unpaved streets where they accumulated and cause various diseases. Around 320 BC in Athens, the first known law forbidding this practice was established.
2. Why burning waste is not an acceptable practice of solid waste management?
a) Because it is very costly
b) Because it requires modern technologies
c) Because it cause several environmental issues
d) Because it requires lot of space
Explanation: Burning waste is not an acceptable practice, because if we look into environmental or health prospective burning waste creates lots of pollution and it is harmful to both environment and as well as organisms.
3. What plan should we make to the disposal of solid waste?
a) Integrated waste management plan
b) Recycling of waste management plan
c) Reducing of waste management plan
d) Use of waste management plan
Explanation: The disposal of solid waste should be part of an integrated waste management plan. This integrated solid waste management is the method of collection, processing, resource recovery and final disposal of solid waste.
4. The term ‘Municipal Solid Waste’ is used to describe which kind of solid waste?
c) Non hazardous
d) Non toxic
Explanation: The term ‘municipal Solid Waste’ is generally used to describe most of the non-hazardous solid waste from a city, town or village that requires routine collection and transport to a processing or disposal site.
5. How many main components are there in integrated waste management?
Explanation: An integrated waste management strategy includes three main components they are source reduction, recycling and disposal. All these three types plays an important role in the solid waste management.
6. Municipal Solid Waste (MSW) contains a wide variety of materials.
Explanation: MSW contains a wide variety of materials. It can contain food waste which is classified as wet garbage and paper, plastic, tetra packs, plastic cans, glass bottles, metal items, wood pieces, aluminum foil and many more items.
7. Which of the integrated waste management is reduced on an individual level?
a) Source reduction
Explanation: Source reduction is one of the fundamental ways to reduce waste. On an individual level, we can reduce the use of unnecessary items while shopping, avoid buying disposable items and avoid using plastic carry bags.
8. Which of the following can be recycled many times?
c) Organic materials
Explanation: Recycling is reusing some components of the waste that has some economic value. Aluminum can be recycled many times. Mining of new aluminum is expensive hence recycling of aluminum plays a significant role in aluminum industry.
9. Why plastics are difficult to recycle?
a) Because it is very hard material
b) Because it is very adhesive in its nature
c) Because of different types of polymer resins
d) Because of different sizes of plastic
Explanation: Plastic are difficult to recycle because of the different types of polymer resins in their production. Since each type has a distinct chemical composition, different plastics cannot be recycled together.
10. How many key characteristics of a municipal sanitary landfill are there?
Explanation: The three key characteristics of a municipal sanitary landfill that distinguish it from an open dump are: Solid waste is placed in a suitably selected and prepared landfill site, the waste material is spread out and compacted with appropriate heavy machinery, the waste is covered each day with a layer of compacted soil.
11. How does organic material in the buried solid waste will decompose?
a) By the action of oxidation
b) By the action of microorganisms
c) By the flow of water
d) By the soil particles
Explanation: The organic material in the buried solid waste will decompose due to the action of microorganisms. At first the waste decomposes aerobically until the oxygen that was present in the freshly placed fill is used up by the aerobic microorganisms.
12. What is called for the process of burning municipal solid waste in a properly designed furnace under suitable temperature and operating conditions?
Explanation: Incineration is a chemical process in which the combustible portion of the waste is combined with oxygen forming carbon dioxide and water, which are released into the atmosphere. Suitable temperature and operating conditions are required to achieve for incineration.
13. Why the recycled paper is banned for use in food containers?
a) Because it creates contamination
b) Because it creates a lot of spaces
c) Because paper can be used only one time
d) Because paper is very thick and can’t cover the food containers
Explanation: Recycled paper is banned for use in food containers to prevent the possibility of contamination. It very often costs less to transport raw-paper pulp than scrap paper. Collection, sorting and transport account for about 90% of the cost of paper recycling.
14. Land filling is an economic alternative for solid waste disposal and it can be implemented easily.
Explanation: Although land filling is an economic alternative for solid waste disposal, it becomes increasingly difficult to find suitable landfilling sites within economic hauling distance. There will be a danger of some environmental damage in the form of leakage of leachate.
Sanfoundry Global Education & Learning Series – Energy & Environment Management.
To practice all areas of Energy & Environment Management, here is complete set of 1000+ Multiple Choice Questions and Answers.