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

50 years

150 years

250 years

200 years

50 years

150 years

250 years

200 years

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Irrigation Engineering
Side slopes generally kept for canals in loam soil, are:

1½ : 1 in cutting and 2 : 1 in filling

Neither (A) nor (B)

1 : 1 in cutting and 1½ : 1 in filling

Both (A) and (B)

1½ : 1 in cutting and 2 : 1 in filling

Neither (A) nor (B)

1 : 1 in cutting and 1½ : 1 in filling

Both (A) and (B)

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Irrigation Engineering
If Δ is the depth of water in metres, B is the number of days of base period and D is the duty in hectare/cumec, the relationship which holds good, is

D = Δ (8.64 D/B)

D = (8.6 Δ/B)

B = Δ (8.64 B/D)

Δ = (8.6 B/D)

D = Δ (8.64 D/B)

D = (8.6 Δ/B)

B = Δ (8.64 B/D)

Δ = (8.6 B/D)

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Irrigation Engineering
Assertion A : To estimate the rainfall over a catchment, the number of raingauges required per unit area is large for hilly areas.Reason R : Rainfall gradient is steep.Select your correct answer according to the coding system given below :

A is false but R is true

Both A and R are true but R is not the correct explanation of A

Both A and R are true and R is the correct explanation of A

A is true but R is false

A is false but R is true

Both A and R are true but R is not the correct explanation of A

Both A and R are true and R is the correct explanation of A

A is true but R is false

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Irrigation Engineering
Which of the following canal structures is used to remove surplus water from an irrigation channel into a natural drain ?

canal outlet

canal fall

canal escape

canal regulator

canal outlet

canal fall

canal escape

canal regulator

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Irrigation Engineering
The amount of irrigation water required to meet the evapotranspiration needs of the crop during its full growth is called

consumptive irrigation requirement

effective rainfall

consumptive use

net irrigation requirement

consumptive irrigation requirement

effective rainfall

consumptive use

net irrigation requirement

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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 Side slopes generally kept for canals in loam soil, are:

Irrigation Engineering If Δ is the depth of water in metres, B is the number of days of base period and D is the duty in hectare/cumec, the relationship which holds good, is

Irrigation Engineering Assertion A : To estimate the rainfall over a catchment, the number of raingauges required per unit area is large for hilly areas.Reason R : Rainfall gradient is steep.Select your correct answer according to the coding system given below :

Irrigation Engineering Which of the following canal structures is used to remove surplus water from an irrigation channel into a natural drain ?

Irrigation Engineering The amount of irrigation water required to meet the evapotranspiration needs of the crop during its full growth is called

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
Side slopes generally kept for canals in loam soil, are:

Irrigation Engineering
If Δ is the depth of water in metres, B is the number of days of base period and D is the duty in hectare/cumec, the relationship which holds good, is

Irrigation Engineering
Assertion A : To estimate the rainfall over a catchment, the number of raingauges required per unit area is large for hilly areas.Reason R : Rainfall gradient is steep.Select your correct answer according to the coding system given below :

Irrigation Engineering
Which of the following canal structures is used to remove surplus water from an irrigation channel into a natural drain ?

Irrigation Engineering
The amount of irrigation water required to meet the evapotranspiration needs of the crop during its full growth is called