IRRIGATION

Q: For smooth entry of water in a canal, the angle between head regulator and water is generally kept

(a) :  80°
(b) :  90°
(c) :  110°
(d) :  120°
(e) :  None of these
Answer:  110°
Explanation:  

Q: A counter berm is

(a) :  a horizontal benching provided on the inside slope
(b) :  a horizontal benching provided on the outside slope
(c) :  a vertical benching provided on the outer edge of the bank
(d) :  a vertical benching provided on the inner edge of the bank.
(e) :  None of these
Answer:  a horizontal benching provided on the outside slope
Explanation:  

Q: The sinuosity of a meander is the ratio of

(a) :  meander length and the width of meander
(b) :  meander length and half width of the river
(c) :  curved length and the straight distance
(d) :  all of these
(e) :  None of these
Answer:  curved length and the straight distance
Explanation:  

Q: A hydraulic jump is generally formed when a stream moving with

(a) :  a hyper-critical velocity meets a stream moving with a critical velocity
(b) :  a hyper-critical velocity meets a stream moving with a hyper-critical velocity
(c) :  A hyper-critical velocity meets a stream moving with a sub-critical velocity
(d) :  a sub-critical velocity meets a stream moving with a hyper-critical velocity.
(e) :  None of these
Answer:  A hyper-critical velocity meets a stream moving with a sub-critical velocity
Explanation:  

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