LESSON 5:Irrigation Networks

Question 1

Represents the network of permanent and temporary waterways (canals, pipelines) that supply water to irrigated lands from an irrigation source; it is the key component of the irrigation system.

Answer 1

Irrigation network

Question 2

A network of installation consisting of pipes, fittings such as valves, pumps (if necessary) and other devices properly designed and installed to supply water under pressure from the source of the water to the irrigable area.

Answer 2

Piped Irrigation Network (PIN)

Question 3

For surface irrigation method, where large heads are not required, the underground pipe line system is used which is essentially a low pressure system, also known as

Answer 3

open or semi closed’ system

Question 4

Where large heads are required, underground pipe line system is used which is essentially a high pressure system, also known as

Answer 4

closed system

Question 5

Designed hydraulically to provide the most efficient cross section for the transportation of irrigation water.

Answer 5

Canals

Question 6

The estimated overall efficiency with piped irrigation network

Answer 6

70-80%.

Question 7

used in math as a variable and physics to
represent density.

Answer 7

Greek letter p (rho)