Water Requirement of Crops and Reservoir Planning
31. What is the time interval between the sowing and harvesting of crops?
a. Crop period
b. Kor period
c. Season period
d. Base period.
32. What is the first step in soil preparation before sowing of seeds?
a. Laveling
b. Pre-watering
c. Manuring
d. Ploughing.
33. Crop period is approximately assumed to be the same as that of the base period.
a. True
b. False.
34. The first watering before sowing the crop is
a. Kor
b. Paleo
c. Delta
d. Flooding.
35. The area in which inferior crops can be grown without irrigation is called semi-arid region.
a. False
b. True.
36. Superfluous water is also called _
a. Gravitational water
b. Capillary water
c. Hydroscopic water
d. None of the above
37. Duty of water helps in the work out of discharge required for designing the channel.
a. False
b. True
38. What is total depth of water, for complete growth of crop called?
a. Rotation
b. Duty of water
c. Delta
d. Triangle
39. What is the name of duty called as in direct irrigation?
a. Flow duty
b. Quantity duty
c. Delta
d. Duty
40. Which type of area is large in quantity compared to others?
a. Gross Commanded Area
b. Culturable Commanded Area
c. Culturable Cultivated Area
d. Culturable Non-cultivated Area
41. In what type of area crop is not sown for a particular season?
a. Gross Commanded Area
b. Culturable Commanded Area
c. Culturable Cultivated Area
d. Culturable Non-cultivated Area
42. At which point in the entire canal system the duty of water will be more?
a. Head of the water-course
b. Head of the Minor
c. Head of the branch
d. Head of the distributary
43. Flow irrigation system has lower duty than lift irrigation system.
a. True
b. False
44. According to the number of hectares/cumec, if the irrigated area is large or small then it is called high or low duty respectively.
a. False
b. True
45. Given that, a particular irrigation field has C.C.A as 200 hectares, out which 150 hectares of land is cultivated for rabi season and 100 hectares of land is cultivated for kharif season. What is the intensity of irrigation for each season?
a. 75%, 50%
b. 50%. 100%
c. 50%, 75%
d. 100%, 50%
46. It is said that a particular type of crop requires a depth of 6 cm of water every 24 days and the crop period is 168 days. Find the delta of the crop?
a. 52 cm
b. 60 cm
c. 50 cm
d. 42 cm
47. By lining of canals, carrying irrigation supplies we can reduce seepage and evaporation losses. Therefore reducing the field requirement of water increases the duty.
a. True
b. False
48. Which factor directly affects the duty of water?
a. Type of crop
b. Type of soil
c. Canals
d. Useful Rainfall
49. In crop-rotation, a cash crop may be followed by a fodder crop, which is then followed by soil renovating crop like _
a. Rice
b. Maize
c. Oats
d. Grams and pulses
50. Which state leads to the consumption of fertilizers?
a. Andhra Pradesh
b. UP
c. Punjab
d. Haryana
51. Which Indian state is Worlds first organic state?
a. UP
b. Punjab
c. Assam
d. Sikkim
52. For clayey soils, the depth of root-zone is less.
a. True
b. False
53. The productivity of crop increases with water reaches a maximum value then, falls down.
a. True
b. False
54. Where are placed the list of processes that are prepared to be executed and waiting?
a. Job queue
b. Process queue
c. Ready Queue
d. None of the above
55. DOS stands for Disk Operating System.
a. True
b. False
56. Which factor doesn’t influence the root zone depth?
a. Sub soil formation
b. Type of crops grown
c. Type of soil
d. The yield of the crop
57. The quantity of water beneficially used is the sum of the water used by the crops and the water used for leaching.
a. False
b. True
58. The mean depth of water is 1.5 cm and the mean deviation from the mean is 0.1 cm. Determine its distribution efficiency.
a. 65%
b. 75%
c. 85%
d. 93%
59. Which type of soil has less ratio of AET/PET than the other?
a. Sandy soil
b. Clayey soil
c. Black soil
d. Alluvial soil
60. Total transpiration about 95% occurs during the day alone.
a. True
b. False
61. Transpiration process is an integral part of the main process called photosynthesis.
a. False
b. True
62. The value of consumptive use may be different for different crops and different for the same crop at different times and places.
a. True
b. False
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