Civil Engineering - Irrigation - Discussion

Discussion Forum : Irrigation - Section 2 (Q.No. 10)
10.
If the irrigation efficiency is 80%, conveyance losses are 20% and the actual depth of watering is 16 cm, the depth of water required at the canal outlet, is
10 cm
15 cm
20 cm
25 cm
30 cm
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
33 comments Page 3 of 4.

Sachin solanki said:   7 years ago
It is 16/(0.8*0.8).

INDRANIL KARFA said:   8 years ago
Depth of water after losses =x -x/5=4x/5.
Again Depth of water after losses=16*(100÷80)=20cm.
So, 4x/5=20, x=25 cm.

Amrutha Raveendran said:   8 years ago
But @Rosh.

Here the water depth is asked for 80% efficiency so 20cm is enough. Don't it is?

Shreya doshi said:   8 years ago
Thank you @Rosh.

Jeff said:   8 years ago
@Anil.

What if efficiency is 80% and conveyance losses is 12%?

Anil said:   8 years ago
Thank you all.

Tanu said:   8 years ago
Thank you so much @Rosh.

RAJAT said:   8 years ago
Yes, now clearly understood thank you @Rosh.

Sharyu said:   9 years ago
Yes, Thanks @Rosh.

Zemenu said:   10 years ago
Crop water requirement ETo = Gross irrigation requirement*Irrigation efficiency.

So 16*80% = 10.4.


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