Question

difference between Prismatic section and non Prismatic section​

Answer 1

Answer:

➢ A channel in which the cross-sectional shape, size, and bottom slope are constant is termed as prismatic channel.

➢ All-natural channels generally have varying cross-section and consequently are non- prismatic.

➢ Most of the man-made channel are prismatic channels over long stretches.

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Answer 2

Prismatic Channels is a uniform cross-section of a channel whereas, Non-prismatic Channels is a  non-uniform cross-section of a channel.

Explanation:

• Prismatic channels - the cross-section of a channel is uniform throughout its length and the bottom slope is constant. Prismatic channels have multiple shapes, they can be triangular, rectangular, parabolic, trapezoidal, or circular. Artificial channels are usually prismatic channels.
• Non-prismatic Channels - the cross-section of a channel is non-uniform and has a varying bottom slope. Natural channels are usually non-prismatic channels.