Tag: solid waste and its management

Questions Related to solid waste and its management

In which solid waste disposal method, solid waste is reduced to fine particles in grinding machines?

  1. Incineration

  2. Pulverization

  3. Compositing

  4. Landfilling


Correct Option: B

The 3 R principle in waste management involves

  1. Reduce, Regain, Reuse

  2. Reduce, Reuse, Recycle

  3. Reduce, Reform, Reset

  4. Reduce, Retain, Regain


Correct Option: B

Collection' is first fundamental function of;

  1. Solid waste management

  2. Solid waste disposal

  3. Environmental Management

  4. All of above


Correct Option: A

In recyclable pakaging system, containers are used to collect storage of waste, bringing up to disposal site, unloading and returning to original location, known as

  1. Stationary Container System

  2. Hauled Container System

  3. Colloidal Solids

  4. Collection System


Correct Option: B

Which of the following is an important step before the last step of solid waste management?

  1. Collection

  2. Recovery

  3. Disposal

  4. None of the above


Correct Option: B
Explanation:

There are various steps which are involved in the safe management of the solid waste. Reduce, reuse, recycling, sorting, processing, recovery and disposal are major steps of integrated waste management. The important step before the last step is the energy recovery. The forms of wastes which can be recovered to obtain energy can be segregated and the remaining waste forms can be disposed. This reduces the energy which will be required for the transport and the final disposal of the waste.

Thus, the correct answer is option B. 

Resource recovery is also known as 

  1. Reuse

  2. Recycle

  3. Reduce

  4. All of the above


Correct Option: B
Explanation:

There are different waste management strategies for waste minimization. The aim of the waste management is to obtain the maximum benefits from products and to generate the minimum amount of waste. Resource recovery in the waste management process is a step of converting a waste material into a useful product. It is called as recycling. 

Thus, the correct answer is option B.

 The rate of pyrolysis increases with 

  1. Temperature

  2. Pressure

  3. Preciptation

  4. None of the above


Correct Option: A
Explanation:
Pyrolysis is the process of breaking organic compounds in the presence of heat but in absence of oxygen. The process accelerates with increase in temperature. 
So, the correct answer is 'Temperature'

Waste minimization targets at

  1. Reducing the amount of waste produced in society

  2. Preventing the creation of waste

  3. Supporting the efforts to promote a more sustainable society

  4. All of the above


Correct Option: D
Explanation:

Waste minimisation is the method which aims at reducing the amount of waste which is generated. The waste which is generated can be reduced at the society level. There should be a decrease in the production or creation of the wastes. The used products can be transformed and used again, instead of throwing the substance as waste. Waste minimisation is one of the methods which can help to promote a sustainable society.

Thus, the correct answer is option D.

 ............ is the most common method of disposal in most European countries.

  1. Automated vacuum collection

  2. Curbside collection

  3. Pyrolysis

  4. None of the above


Correct Option: B
Explanation:

Curbside collection is the method of waste disposal in the European countries. There are special bins which are used for the collection of the wastes from the residential areas. The wastes are then recollected in special trucks. These trucks are used for the transport of the wastes to the areas outside the premises of the city.

Thus, the correct answer is option B. 

 ............. is a disposal method in which solid organic wastes are subjected to combustion.

  1. Landfill

  2. Incineration

  3. Recycling

  4. None of the above


Correct Option: B
Explanation:

Incineration is a waste treatment process that involves the combustion of organic substances contained in waste materials. Incineration can be described as thermal treatment. Incineration of waste materials converts the waste into ash, flue gas and heat. 

Thus, the correct answer is option B.