| 1. | A groyne with a curved head is known as ? | |
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burma groyne
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denehy groyne
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hockey groyne
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none of these
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Report Question| 2. | According to Khosla's theory, the exit gradient in the absence of a downstream cut-off ? | |
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infinity
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zero
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none of these
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unity
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| 3. | The degree of sinuosity is the ratio between the ? | |
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meander length and width of meander
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curved length and the straight air distance
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meander length and the width of river
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none of these
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| 4. | The basic factor which controls the process of meandering is ? | |
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bed and side resistance
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discharge
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valley slope
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all of these
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| 5. | A groyne ? | |
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trains the flow along a certain course
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contracts a river channel to improve its depth
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all of the above
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silts up the area in the vicinity by creating
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| 6. | When the bed level of the canal is higher than the highest flood level (H.F.L.) of the drainage, then the cross drainage work is said to be ? | |
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syphon aqueduct
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aqueduct
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canal syphon
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super-passage
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| 7. | The floor of the aqueduct is subjected to uplift pressure due to ? | |
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seepage of water from the canal to the drainage
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sub-soil water table in the drainage bed
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both (a) & (b)
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none of the above
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| 8. | A river training work is generally required when the river is ? | |
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aggrading type
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meandering type
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degrading type
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stable type
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| 9. | The crest of the under-sluices should be lower than the crest of the head regulator (if silt excluder is provided) by at least ? | |
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1.8 to 2 m
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4 to 5 m
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2 to 2.5 m
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1 to 1.2 m
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| 10. | When an oven-dried sample of soil is kept open in the atmosphere, it absorbs some amount of water. This water is known as ? | |
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hygroscopic water
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gravitational water
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capillary water
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all of these
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