Tag: flow of water

Questions Related to flow of water

........... allows the control of flow of water during irrigation.

  1. Rahat

  2. Pulley system

  3. Lever system

  4. None of these


Correct Option: C
Explanation:

Lever systems allow the user to control the speed of irrigation by choosing slow, medium or fast water flow; however, the lever system method is not as ancient, or inexpensive, as other methods. 

Therefore, the correct answer is option C.

Moat, Dhekli and Rahat are different

  1. Traditional methods of cultivation

  2. Traditional methods of seed sowing

  3. Traditional methods of weeding

  4. Traditional methods of irrigation


Correct Option: D
Explanation:

(A) Traditional methods of cultivation are Tilling, planting, burning of land and cattle grazing.

(B) Traditional methods of seed sowing are Broadcasting, seed drill and open field planting.
(C) Traditional methods of weeding include covering, removal of weeds by hands, crop rotation etc.
(D) Traditional methods of irrigation include Chain-pump, Dhekli, Moat, Rahat,
So, the correct option is 'Traditional methods of irrigation'.

Chain pump system of irrigation was primarily used in 

  1. Europe

  2. China

  3. Both A and B

  4. India


Correct Option: C
Explanation:

Chain pump system consists of two large wheels tied at both ends with a chain where the wheel is rotated using the chain and water is filled in the buckets and poured off into the field. It is mostly practised in  Europe, China etc. 

So, the correct option is 'Both A and B'.

The most common type of belt is made up of

  1. Rubber

  2. Kirmich

  3. Leather

  4. Cotton thread


Correct Option: A
Explanation:

Belts made of rubber are most common because rubber is more flexible and is less expensive than leather. Because of its elasticity, toughness and smooth nature, it is mostly used. These are also made of natural and synthetic rubber. So, the correct option is 'Rubber'.

In which implement, bullocks are not used for lifting water? 

  1. Buldev Balti

  2. Charsa

  3. Egyptian screw

  4. Rahat (Persian wheel)


Correct Option: C
Explanation:

Egyptian screw is an implement which is used for moving or lifting up of water. It was invented by Archimedes. Water from this tool is pumped by turning up a screw it consists of a circular pipe enclosing a helix. 

So the correct option is 'Egyptian screw'.