Question

Depending on what factor does
the lining of a canal can
increase the capacity of the
canal?
a. Side Slope
b. Type of Flow
c. Width of the Canal
d. Velocity​

Answer 1

Answer:

Canal lining is the process of reducing seepage loss of irrigation water by adding an impermeable layer to the edges of the trench. Seepage can result in losses of 30 to 50 percent of irrigation water from canals, so adding lining can make irrigation systems more efficient.

Answer 2

Depending on option - d. velocity​ does the lining of a canal can increase the capacity of the canal.

• A canal is a man-made conduit used to transport water from a river or reservoir for navigational purposes, irrigation needs, or human needs.
• The major river or reservoir is always dependent on the canal.
• As a result, water is diverted to canals by raising the water level using dams, weirs, or lock systems.

The following three fundamental types of waterways are used to build canals:

• artificial streams (artificially created one),
• navigating and building canals (an existing stream converted into the canal for irrigation or navigation purpose),
• Posterior canals (if canalization is not possible, a second stream is created next or least near to the existing canal).

Canal Lining:

• The installation of irrigation facilities is extremely costly.
• Therefore, it is crucial to safeguard the canal during construction and minimise water loss from seepage.
• The amount of water lost by seepage can be significantly decreased by the canal's lining.

The benefits of canal linings include:

• Reduced water loss is possible.
• More than 50% of the water lost in the unlined channel is due to seepage.
• Water loss in lined channels ranges from 2% to 5%.
• Increase the canal's durability and protection.
• prevents the unchecked rise in the groundwater table that causes flooding
• Much of the maintenance can be eliminated.
• Additionally, canal lining contributes to ensuring a constant flow and discharge and reduces the slit deposit.
• The capacity of a canal can be increased by its lining depending on the velocity.

#SPJ2