| 1. | Lining of a canal is necessary ? | |
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to minimise the seepage losses in canal
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to prevent erosion of bed and sides due to high velocities
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to increase the discharge in canal section by increasing the velocity
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all of the above
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Report Question| 2. | Kennedy, in his silt theory, assumed that the silt is kept in suspension because of eddies (a) Lacey's theory from the ? | |
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bed only
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sides only
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whole perimeter to the bed width
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any of these
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| 3. | A deflecting groyne in a river is ? | |
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inclined towards upstream
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perpendicular to bank
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inclined towards downstream
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none of these
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| 4. | The river training works are adopted on a river ? | |
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to pass high flood discharge safely and quickly through the breach
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to direct and guide the river flow
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to reduce bank erosion to a minimum
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all of the above
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| 5. | In Bligh's creep theory ? | |
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there is no distinction between horizontal and vertical creep
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loss of head does not take place in the same proportion as creep length
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the uplift pressure distribution is not linear, but follows a sine curve
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all of the above
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| 6. | The ratio of the rate of change of discharge of an outlet to the rate of change of the discharge of the distributing channel, is termed as ? | |
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proportionality
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flexibility
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sensitivity
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efficiency
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| 7. | A fall, which maintains the depth is a ? | |
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trapezoidal notch fall
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rectangular notch fall
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low weir fall
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all of these
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| 8. | In a flexible outlet, the discharge depends upon the ? | |
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water level in distributary
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water level in water course
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difference of water levels between distributary and water course
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none of the above
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| 9. | The weed growth in a canal leads to ? | |
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decrease in silting
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decrease in discharge
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increase in discharge
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increase in velocity of flow
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| 10. | Okhla weir on Yamuna river, in Delhi, is an example of ? | |
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vertical drop weir
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drystone slope weir
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concrete slope weir
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parabolic weir
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