| 1. | Which of the following statements is correct ? | |
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The pattern of meander is altered by variation in discharge slope and bed forming material
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The degrading type of river looses its bed gradually in the form of sediment load of the stream
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The aggrading type of river builds up its bed to a certain slope
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all of the above
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Report Question| 2. | A levee on flood ? | |
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increases the water surface elevation of the river at flood
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decreases the surface slope of the stream above the leveed portion
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increases the velocity and scouring action through leveed section
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all of the above
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| 3. | Available moisture may be defined as the ? | |
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moisture content at permanent wilting point
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difference in water content of the soil between field capacity and permanent wilting
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maximum moisture holding capacity
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all of these
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| 4. | The graphical representation of average rainfall and rainfall excess (i.e. rainfall mi infiltration) rates over specified areas during successive unit time intervals during a storm is know ? | |
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hyetograph
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hydrograph
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unit hydrograph
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none of these
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| 5. | The saturation gradient in an ordinary loam soil is ? | |
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1:1
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4:1
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2:1
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3:1
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| 6. | According to Khosla's theory, the critical hydraulic gradient for alluvial soils is approximately equal to ? | |
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1
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1.5
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2
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2.5
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| 7. | The width and length of meander as well as width of river, vary approximately with ? | |
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discharge
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square root of discharge
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cube root of discharge
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square of discharge
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| 8. | The bed of a canal is lowered in case of ? | |
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canal syphon
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level crossing
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syphon aqueduct
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all of these
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| 9. | The time (in days) that crop takes from the instant of its sowing to that of its harvest, is known ........ period ? | |
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kor
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base
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crop
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None of the above
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| 10. | The most economical section of a lined canal is ? | |
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triangular section with circular bottom for small discharges
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rectangular section with circular bottom for small discharges
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trapezoidal section with rounded corners for higher discharges
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both b and c
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