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1) Hydrograph is the graphical representation of________________? a. runoff and time b. surface runoff and time c. ground waterflow and time d. rainfall and time
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2) The amount of irrigation water required to meet the evapotranspiration needs of the crop during its full growth is called________________? a. effective rainfall b. consumptive use c. consumptive irrigation requirement d. net irrigation requirement
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3) The ratio of the quantity of water stored in the root zone of the crops to the quantity of water actually delivered in the field is known as__________________? a. water conveyance efficiency b. water application efficiency c. water use efficiency d. none of the above
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4) Which of the following methods of applying water may be used on rolling land ? a. boarder flooding b. check flooding c. furrow flooding d. free flooding
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5) Optimum depth of kor watering for rice is______________? a. 135 mm b. 165 mm c. 190 mm d. 215 mm
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6) The kor depth for rice is 190 mm and kor period is 14 days. The outlet factor for this will be_________________? a. 637 hectares/m3/sec b. 837 hectares/m3/sec c. 972 hectares/m3/sec d. 1172 hectares/m3/sec
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7) Rate of evaporation from a water surface increases if_________________?
1) difference of vapour pressure between water and air is increased 2) velocity of wind is decreased 3) concentration of soluble solids in water is decreased The correct answer is? a. (1) and (i2) b. (2) and (3) c. (2) and (3) d. (1), (2) and (3)
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8) The forces, which are considered for the analysis of an elementary profile of a gravity dam under empty reservoir condition, are________________?
1) Water pressure 2) Self weight 3) Uplift 4) Pressure due to earthquake The correct answer is a. Only (2) b. (1), (2) and (3) c. (1), (2) and (4) d. (1), (2), (3) and (4)
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9) Presence of tail water in a gravity dam_____________?
1) increases the principal stress 2) decreases the principal stress 3) increases the shear stress 4) decreases the shear stress The correct answer is a. (1) and (3) b. (1) and (4) c. (2) and (3) d. (2) and (4)
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10) Variability of rainfall is____________?
1) largest in regions of high rainfall 2) largest in coastal areas 3) largest in regions of scanty rainfall The correct answer is? a. only (1) b. (1) and (2) c. only (3) d. (2) and (3)
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11) Interception losses are due to_______________?
1) evaporation 2) transpiration 3) stream flow The correct answer is? a. only (1) b. (1) and (2) c. (1) and (3) d. (1), (2) and (3)
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12) To determine the discharge at a section in a stream from its rating curve, the required data are_______________?
1) slope of water surface at the section 2) stage at the section 3) current meter readings at the section The correct answer is? a. (1) and (2) b. (2) and (3) c. only (2) d. only (3)
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13) Instantaneous unit hydrograph is a hydrograph of________________?
1) unit duration 2) unit rainfall excess 3) infinitely small duration 4) infinitely small rainfall excess The correct answer is? a. (1) and (2) b. (1)and(4) c. (2) and (3) d. (3) and (4)
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14) Select the incorrect statement ? a. Intensive irrigation should be avoided in areas susceptible to water logging b. Extensive irrigation should be adopted in areas susceptible to water logging c. Lift irrigation increases water logging d. all of the above
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15) Select the correct statement? a. A meander increases the river length but a cut off reduces the river length b. A cutoff increases the river length but a meander reduces the river length c. Both meander and cutoff increase the river length d. Both meander and cutoff decrease the river length
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16) Study the following statements?
1. Levees are constructed parallel to river flow 2. Spurs are constructed parallel to river flow 3. Levees are constructed transverse to river flow 4. Spurs are constructed transverse to river flow The correct answer is a. (1) and (2) b. (1) and (4) c. (2) and (3) d. (3) and (4)
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