Irrigation problems
- 1. 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
Correct Answer: All the above.
- 2. 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
Correct Answer: check method
- 3. 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. Discuss
Correct Answer: all the above.
- 4. 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
Correct Answer: a horizontal benching provided on the outside slope
- 5. 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
Correct Answer:
- 6. 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
Correct Answer: sensitivity
- 7. 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
Correct Answer: both (a) and (b)
- 8. 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
Correct Answer: canal passes over the drainage and H.F.L. of the drainage is above the bottom of the canal trough
- 9. A current meter measures the velocity of flow, if it is held
Options- A. on the surface of water
- B. at the bottom of channel
- C. at any point within the cross-section
- D. none of these. Discuss
Correct Answer: at any point within the cross-section
- 10. Pick up the correct statement from the following
Options- A. Escapes are essential safety valves in a canal system
- B. The capacity of escapes should not be less than the capacity of the canal at its location
- C. The escapes must lead the surplus water to natural drainages
- D. The escapes are aligned to take advantage of contours of lower values
- E. All the above. Discuss
Correct Answer: All the above.
More in Civil Engineering:
Programming
Copyright ©CuriousTab. All rights reserved.