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- Question
In north Indian Plains, optimum depth of kor watering for wheat, is
Options- A. 23.0 cm
- B. 19.0 cm
- C. 17.5 cm
- D. 13.5 cm
- E. 12.0 cm
- Correct Answer
- 13.5 cm
- 1. Bligh's theory of seepage assumes
Options- A. equal weightage to the horizontal and vertical creep
- B. more weightage to horizontal creep than vertical creep
- C. less weightage to horizontal creep than vertical creep
- D. loss of head follows the sine curve. Discuss
- 2. The optimum depth of kor watering for a rice crop, is
Options- A. 23.0 cm
- B. 19.0 cm
- C. 17.5 cm
- D. 13.5 cm
- E. 12.0 cm Discuss
- 3. The main cause of silting up a channel,
Options- A. non-regime section
- B. inadequate slope
- C. defective head regulator
- D. defective outlets
- E. all the above. Discuss
- 4. Regime conditions in a channel may occur if
Options- A. discharge is constant
- B. channel flows uniformly in incoherent alluvium as that transported in suspension
- C. silt grade and silt charge are constant
- D. all the above. Discuss
- 5. Meandering of a river generally occurs, in
Options- A. rocky stage
- B. delta stage
- C. boulder stage
- D. trough stage. Discuss
- 6. If ? is the depth of water in metres, B is the number of days of base period and D is the duty in hactare/cumec, the relationship which holds good, is
Options- A.
- B.
- C.
- D.
- E. none of these. Discuss
- 7. Canals taken off from ice-fed perennial rivers, are known
Options- A. permanent canals
- B. ridge canals
- C. perennial canals
- D. inundation canals
- E. ice canals. Discuss
- 8. The consumptive use of water for a crop
Options- A. is measured as the volume of water per unit area
- B. is measured as depth of water on irrigated area
- C. may be supplied partly by precipitation and partly by irrigation
- D. all the above. Discuss
- 9. Lacy's regime condition is obtained if
Options- A. silt grade in the channel is variable
- B. discharge in the channel is variable
- C. silt charge in the channel is variable
- D. channel flows in unlimited, incoherent alluvium of the same character as that transported material. Discuss
- 10. The field capacity of a soil is 25%, its permanent wilting point is 15% and specific dry unity weight is 1.5. If the depth of root zone of a crop, is 80 cm, the storage capacity of the soil, is
Options- A. 8 cm
- B. 10 cm
- C. 12 cm
- D. 14 cm
- E. 16 cm Discuss
Irrigation problems
Search Results
Correct Answer: equal weightage to the horizontal and vertical creep
Correct Answer: 19.0 cm
Correct Answer: all the above.
Correct Answer: all the above.
Correct Answer: trough stage.
Correct Answer:
Correct Answer: perennial canals
Correct Answer: all the above.
Correct Answer: channel flows in unlimited, incoherent alluvium of the same character as that transported material.
Correct Answer: 12 cm
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