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

250 years

200 years

50 years

150 years

250 years

200 years

50 years

150 years

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Irrigation Engineering
If the risk of a flood occurring in the next 10 years is accepted to 10%, then the return period for design should be

1 + (0.9)010

1/(1+ 0.9010)

1 – (0.9)°l0

1/(1-0.9°10)

1 + (0.9)010

1/(1+ 0.9010)

1 – (0.9)°l0

1/(1-0.9°10)

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Irrigation Engineering
A water-logged land is found suitable for cultivation due to

Ease of tillage for preparation of the field for optimum condition of germination

Regular supply of water to plants from the water table by capillary action

Absence of aeration of soil from root zone of the plant

None of these

Ease of tillage for preparation of the field for optimum condition of germination

Regular supply of water to plants from the water table by capillary action

Absence of aeration of soil from root zone of the plant

None of these

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Irrigation Engineering
A 70% index of wetness means

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%

rain excess of 30%

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Irrigation Engineering
An outlet which maintains a constant discharge irrespective of fluctuation in the water levels of the supplying channel or water course, is known as

Right modular outlet

Non-modular outlet

Flexible modular outlet

Semi-modular outlet

Right modular outlet

Non-modular outlet

Flexible modular outlet

Semi-modular outlet

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Irrigation Engineering
Variability of rainfall is
i) largest in regions of high rainfall
ii) largest in coastal areas
iii) largest in regions of scanty rainfall
The correct answer is

(ii) and (iii)

only (i)

only (iii)

(i) and (ii)

(ii) and (iii)

only (i)

only (iii)

(i) and (ii)

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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 If the risk of a flood occurring in the next 10 years is accepted to 10%, then the return period for design should be

Irrigation Engineering A water-logged land is found suitable for cultivation due to

Irrigation Engineering A 70% index of wetness means

Irrigation Engineering An outlet which maintains a constant discharge irrespective of fluctuation in the water levels of the supplying channel or water course, is known as

Irrigation Engineering Variability of rainfall isi) largest in regions of high rainfallii) largest in coastal areasiii) largest in regions of scanty rainfallThe correct answer 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
If the risk of a flood occurring in the next 10 years is accepted to 10%, then the return period for design should be

Irrigation Engineering
A water-logged land is found suitable for cultivation due to

Irrigation Engineering
A 70% index of wetness means

Irrigation Engineering
An outlet which maintains a constant discharge irrespective of fluctuation in the water levels of the supplying channel or water course, is known as

Irrigation Engineering
Variability of rainfall is
i) largest in regions of high rainfall
ii) largest in coastal areas
iii) largest in regions of scanty rainfall
The correct answer is