i need the answer quickly uo A:00%9V l.M35.65 m(2) jlubäi The most economical section:of a lined canal isrectangular section with circularbottom for medium dischargestrapezoidal section with sharpcorners for higher dischargesrectangular section with horizontalbottom for small dischargestrapezoidal section with roundedcorners for higher dischargesIf the conveyance efficiencyis 80%, field losses are 15%نقطتان )2(and the actual depth ofwatering is 17 cm, the depthof water required at the canal:outlet, is21 cm20 cm

Answered: If the conveyance efficiency is 80%,…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Related questions

Question

i need the answer quickly

uo A:00
%9V l.
M
35.65 m
(2) jlubäi The most economical section
:of a lined canal is
rectangular section with circular
bottom for medium discharges
trapezoidal section with sharp
corners for higher discharges
rectangular section with horizontal
bottom for small discharges
trapezoidal section with rounded
corners for higher discharges
If the conveyance efficiency
is 80%, field losses are 15%
نقطتان )2(
and the actual depth of
watering is 17 cm, the depth
of water required at the canal
:outlet, is
21 cm
20 cm

Expert Solution

Question-1

We know that the trapezoidal channel is always best for the open channel as it is most economical with the given perimeter as it requires less lining than rectangular.

So we can rule out a rectangular section

Next, In lining the canals always curved bottom is more economical and better as the curve is easier to line and there are lengthy proofs to justify this. But if we think in a general sense the curve has the least friction losses so, we always prefer curved bottom.

So the answer will be a Trapezoidal channel with the circular bottom with medium discharge(option-a)