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- Question
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.
- Correct Answer
- all the above.
- 1. 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
- 2. 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
- 3. 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 Discuss
- 4. 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
- 5. 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
- 6. 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
- 7. 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
- 8. For a standing crop, the consumptive use of water is equal to the depth of water
Options- A. transpired by the crop
- B. evaporated by the crop
- C. transpired and evaporated by the crop
- D. used by the crop in transpiration, evaporation and also the quantity of water evaporated from adjacent soil. Discuss
- 9. The useful moisture of soil, is equal to its
Options- A. field capacity
- B. saturation capacity
- C. moisture content at permanent wilting point
- D. difference between filed capacity and permanent wilting point within the root zone of plants. Discuss
- 10. If the optimum depth of kor watering for a crop is 15.12 cm, the outlet factor for the crop for four week period in hectares per cumec, is
Options- A. 1000
- B. 1200
- C. 1400
- D. 1600
- E. 2000 Discuss
Irrigation problems
Search Results
Correct Answer: perennial canals
Correct Answer:
Correct Answer: 13.5 cm
Correct Answer: equal weightage to the horizontal and vertical creep
Correct Answer: 19.0 cm
Correct Answer: channel flows in unlimited, incoherent alluvium of the same character as that transported material.
Correct Answer: 12 cm
Correct Answer: used by the crop in transpiration, evaporation and also the quantity of water evaporated from adjacent soil.
Correct Answer: difference between filed capacity and permanent wilting point within the root zone of plants.
Correct Answer: 1600
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