Civil Engineering - Irrigation - Discussion

Discussion Forum : Irrigation - Section 1 (Q.No. 23)
23.
Groynes are generally built
perpendicular to the bank
inclined up stream up to 30°
inclined down stream upto 30°
all the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
37 comments Page 4 of 4.

Akram said:   8 years ago
Repelling Groynes are built upstream at n angle 30°.

Shovan De said:   8 years ago
1. Attracting Groyne-pointed downstream and at an angle of 45-60° with downstream.

2. Deflecting Groyne-pointed upstream and at an angle of 20-30° with normal of the bank.

3. Repelling Groyne-At an angle of 90° with the bank.

Beside that T shape and inverted hocky shape Groyne also placed according to uses.

So I think the answer will all the above as not mentioning the type of Groyne is.

Rajjak Khan said:   8 years ago
I think D is the right answer.

Sujan said:   8 years ago
I think D is correct.

Sharmi said:   8 years ago
D is the correct answer.

Chiranjib Das said:   7 years ago
The Correct answer is A.

Soumik said:   7 years ago
Option c is not correct. The groynes which are built towards downstream have an oblique angle about 60° to 70°, not upto 30°. They are pointing towards downstream.

The option A and B are correct.


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