English

The system of a network of pipes used for taking away wastewater from homes or public buildings to the treatment plant is known as - Science

Advertisements
Advertisements

Question

The system of a network of pipes used for taking away wastewater from homes or public buildings to the treatment plant is known as

Options

  • sewers

  • sewerage

  • transport system

  • treatment plant

MCQ
Advertisements

Solution

sewerage

Explanation:

Sewage goes through a system of pipes, called sewers, which are linked to each other to form a network called a sewerage system.

shaalaa.com
Wastewater Treatment Plant (WWTP)
  Is there an error in this question or solution?
Chapter 18: Wastewater Story - MULTIPLE CHOICE QUESTIONS [Page 94]

APPEARS IN

NCERT Exemplar Science [English] Class 7
Chapter 18 Wastewater Story
MULTIPLE CHOICE QUESTIONS | Q 7. | Page 94

RELATED QUESTIONS

Dried ______ is used as manure.


Drains get blocked by ______ and ______.


Study the following statements about ozone:

  1. It is essential for breathing of living organisms.
  2. It is used to disinfect water.
  3. It absorbs ultraviolet rays.
  4. Its proportion in air is about 3%.

Which of these statements are correct?


Sewage is mainly a


State whether the following statement is True or False. In case a statement is false, write the correct statement.

Sewage is a solid waste which causes water pollution and soil pollution


State whether the following statement is True or False. In case a statement is false, write the correct statement.

Wastewater could be reused


Given below is a jumbled sequence of the processes involved in a wastewater treatment plant. Arrange them in their correct sequence.

  1. Sludge is scraped out and skimmer removes the floating grease. 
  2. Water is made to settle in a large tank with a slope in the middle.
  3. Large objects like plastic bags are removed by passing wastewater through bar screens.
  4. Sand, grit and pebbles are made to settle by decreasing the speed of incoming wastewater.
  5. Wastewater enters a grit and sand removal tank.

Three statements are provided here which define the terms –

  1. sludge
  2. sewage and
  3. wastewater.

Pick out the correct definition for each of these terms.

  1. The settled solids are removed in wastewater treatment with a scraper.
  2. Water from the kitchen is used for washing dishes.
  3. Wastewater is released from homes, industries, hospitals and other public buildings.

Describe various steps of cleaning wastewater in a wastewater treatment plant.


What is sludge?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×