The total capacity of a reservoir is 25 million cubic metres and dead storage is 5 million cubic metres. If the average volume of sediment deposition is 0.10 million cubic metre per year, then the usefulness of the reservoir will start reducing after

Irrigation Engineering
The total capacity of a reservoir is 25 million cubic metres and dead storage is 5 million cubic metres. If the average volume of sediment deposition is 0.10 million cubic metre per year, then the usefulness of the reservoir will start reducing after

200 years

50 years

250 years

150 years

200 years

50 years

250 years

150 years

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Irrigation Engineering
A 70% index of wetness means

rain excess of 30%

None of these

rain deficiency of 30%

rain deficiency of 70%

rain excess of 30%

None of these

rain deficiency of 30%

rain deficiency of 70%

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Irrigation Engineering
An aggrading river is a

silting river

scouring river

neither silting nor scouring river

both silting and scouring river

silting river

scouring river

neither silting nor scouring river

both silting and scouring river

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Irrigation Engineering
Lacy's regime condition is obtained if

Channel flows in unlimited, incoherent alluvium of the same character as that transported material

Discharge in the channel is variable

Silt charge in the channel is variable

Silt grade in the channel is variable

Channel flows in unlimited, incoherent alluvium of the same character as that transported material

Discharge in the channel is variable

Silt charge in the channel is variable

Silt grade in the channel is variable

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Irrigation Engineering
A fall which maintains its depth, is

A rectangular notch fall

All listed here

A trapezoidal notch fall

A low weir fall

A rectangular notch fall

All listed here

A trapezoidal notch fall

A low weir fall

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Irrigation Engineering
Lacey's equation for calculating flood discharge in rivers, is

V = 10.8 R2/3 S1/3

V = 10.8 R1/2 S1/2

V = 10.8 R2/3 S1/2

V = 10.8 R1/3 S2/3

V = 10.8 R2/3 S1/3

V = 10.8 R1/2 S1/2

V = 10.8 R2/3 S1/2

V = 10.8 R1/3 S2/3

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Irrigation Engineering

Irrigation Engineering The total capacity of a reservoir is 25 million cubic metres and dead storage is 5 million cubic metres. If the average volume of sediment deposition is 0.10 million cubic metre per year, then the usefulness of the reservoir will start reducing after

Irrigation Engineering A 70% index of wetness means

Irrigation Engineering An aggrading river is a

Irrigation Engineering Lacy's regime condition is obtained if

Irrigation Engineering A fall which maintains its depth, is

Irrigation Engineering Lacey's equation for calculating flood discharge in rivers, is

Irrigation Engineering
The total capacity of a reservoir is 25 million cubic metres and dead storage is 5 million cubic metres. If the average volume of sediment deposition is 0.10 million cubic metre per year, then the usefulness of the reservoir will start reducing after

Irrigation Engineering
A 70% index of wetness means

Irrigation Engineering
An aggrading river is a

Irrigation Engineering
Lacy's regime condition is obtained if

Irrigation Engineering
A fall which maintains its depth, is

Irrigation Engineering
Lacey's equation for calculating flood discharge in rivers, is