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Irrigation Questions Set 4:

Quiz Mode

What is the value of the kharif-rabi crop ratio?

3.5

1.2

Solution:

What is provided when large-scale stratification occurs?

Cut-off

Trenches

Relief wells

Chimney drain

Solution:

As one moves from the head of the canal to the field, the water duty _____.

decreases

increases

remains the same

data is insufficient

Solution:

The component of a diversion headwork constructed across the river to raise the water level is the:

Weir proper

River training work

Under sluices

Divide wall

Solution:

Calculate the depth of water required at the canal outlet, if the irrigation efficiency is 75%, conveyance losses are 10%, and the actual depth of watering is 20 cm.

25 cm

54 cm

35.56 cm

12.5 cm

Solution:

A border strip is irrigated with a discharge of 0.2 m³/s and has an average infiltration rate of 6 cm/hr. Find the maximum area of the strip that can be irrigated.

0.53 ha

0.81 ha

1.17 ha

1.46 ha

Solution:

What is the ratio of the quantity of water stored in the plant's root zone to the quantity of water delivered to the field?

Water Conveyance efficiency

Water use efficiency

Water application efficiency

Water distribution efficiency

Solution:

In an irrigation project, in a specific year, 50% and 60% of the cultivable command area in Rabi and Kharif, respectively, remained without water and the rest of the area got irrigation water. Find the intensity of irrigation in that year for the project

Solution:

The transplantation of rice requires 10 days and total depth of water required during transplantation is 48 cm. During transplantation, there is an effective rainfall (useful for irrigation) of 8 cm. The duty of irrigation water (in hectares/cumec) is:

612

216

108

Solution:

A field channel has cultivable command area of 2000 hectares. The intensities of irrigation for gram and wheat are 30% and 50% respectively. Gram has a kor period of 18 days, kor depth of 12 cm, while wheat has a kor period of 18 days and a kor depth of 15 cm. The discharge (up tp 3 decimal places, in m³/s) required in the field channel to supply water to the commanded area during the kor period is_____.

Irrigation Questions Set 4:

What is the value of the kharif-rabi crop ratio?

Solution:

What is provided when large-scale stratification occurs?

Solution:

As one moves from the head of the canal to the field, the water duty _____.

Solution:

The component of a diversion headwork constructed across the river to raise the water level is the:

Solution:

Calculate the depth of water required at the canal outlet, if the irrigation efficiency is 75%, conveyance losses are 10%, and the actual depth of watering is 20 cm.

Solution:

A border strip is irrigated with a discharge of 0.2 m³/s and has an average infiltration rate of 6 cm/hr. Find the maximum area of the strip that can be irrigated.

Solution:

What is the ratio of the quantity of water stored in the plant's root zone to the quantity of water delivered to the field?

Solution:

In an irrigation project, in a specific year, 50% and 60% of the cultivable command area in Rabi and Kharif, respectively, remained without water and the rest of the area got irrigation water. Find the intensity of irrigation in that year for the project

Solution:

The transplantation of rice requires 10 days and total depth of water required during transplantation is 48 cm. During transplantation, there is an effective rainfall (useful for irrigation) of 8 cm. The duty of irrigation water (in hectares/cumec) is:

Solution:

Solution:

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