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- Question
In case of a trapezoidal notch fall
Options- A. top width of the notch is kept between 3/4 th of full water depth above the sill of the notch
- B. top length of the piers should not be less than their thickness
- C. splay up stream from the notch section is 45°
- D. splay down stream from the notch section is
- E. all the above.
- Correct Answer
- all the above.
- 1. For cereal crops the most commonly adopted method of irrigation, is
Options- A. free flowing method
- B. check method
- C. furrow method
- D. sprinkling method. Discuss
- 2. Which one of the following statements is correct?
Options- A. The canal system and the drainage system are complementary
- B. The canal system runs on ridges, gets divided into smaller channels and spreads its water on the land
- C. The drainage system runs along the lowest line, collects drainage water from the slopes and joins the main stream
- D. All the above. Discuss
- 3. Garnett's diagrams are used for graphical solution of design equations of a canal by
Options- A. Lacey's theory
- B. Kennedy's theory
- C. Gibb's theory
- D. Lindlay theory. Discuss
- 4. Lacey's equation for calculating flood discharge in rivers, is
Options- A. V = 10.8 R1/2 S1/2
- B. V = 10.8 R2/3 S1/2
- C. V = 10.8 R2/3 S1/3
- D. V = 10.8 R1/3 S2/3 Discuss
- 5. For diversion of flood water of rivers, the type of canal constructed, is
Options- A. ridge canal
- B. perennial canal
- C. inundation canal
- D. canal. Discuss
- 6. A counter berm is
Options- 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. Discuss
- 7. If D1 and D2 are depths of water upstream and down stream of a hydraulic jump, the loss of head at the jump, is
Options- A.
- B.
- C.
- D.
Discuss
- 8. The ratio of the rate of change of discharge of an outlet to the rate of change in level of water surface in a distributary at its normal depth, is known as
Options- A. efficiency
- B. sensitivity
- C. flexibility
- D. modular limit. Discuss
- 9. The most suitable section of a lined canal, is
Options- A. triangular section with circular bottom for small canals
- B. trapezoidal section with rounded corners for large canals
- C. rectangular section with rounded corners for large canals
- D. both (a) and (b)
- E. both (a) and (c) Discuss
- 10. In a syphon aqueduct
Options- A. drainage passes over the canal and F.S.L. of the canal is below the bottom of the drainage trough
- B. drainage passes over the canal and F.S.L. of the canal is above the bottom of the drainage trough
- C. canal passes over the drainage and H.F.L. of the drainage is above the bottom of the canal trough
- D. canal passes over the drainage and H.F.L. of the drainage is below the bottom of the canal trough. Discuss
Irrigation problems
Search Results
Correct Answer: check method
Correct Answer: All the above.
Correct Answer: Kennedy's theory
Correct Answer: V = 10.8 R2/3 S1/3
Correct Answer: inundation canal
Correct Answer: a horizontal benching provided on the outside slope
Correct Answer:
Correct Answer: sensitivity
Correct Answer: both (a) and (b)
Correct Answer: canal passes over the drainage and H.F.L. of the drainage is above the bottom of the canal trough
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