Recent questions tagged irrigation / GO Civil

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1

GATE2020 CE-2-13
Superpassage is a canal cross-drainage structure in which natural stream water flows with free surface below a canal natural stream water flows under pressure below a canal canal water flows with free surface below a natural stream canal water flows under pressure below a natural stream

Superpassage is a canal cross-drainage structure in whichnatural stream water flows with free surface below a canalnatural stream water flows under pressure below a canal...

go_editor

5.3k points

go_editor asked Feb 13, 2020

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2

GATE2020 CE-2-36
Crops are grown in a field having soil, which has field capacity of $30\%$ and permanent wilting point of $13\%.$ The effective depth of root zone is $80\ cm$. Irrigation water is supplied when the average soil moisture drops to $20\%.$ ... of water for the crops is $2\ mm$, the frequency of irrigating the crops (in days), is $7$ $10$ $11$ $13$

Crops are grown in a field having soil, which has field capacity of $30\%$ and permanent wilting point of $13\%.$ The effective depth of root zone is $80\ cm$. Irrigation...

go_editor

5.3k points

go_editor asked Feb 13, 2020

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3

GATE2017 CE-2-48
The culturable command area of a canal is $10.000$ ha. The area grows only two crops - rice in the Kharif season and wheat in the Rabi season. The design discharge of the canal is based on the rice requirements, which has an irrigated area of $2500$ ha, ... The maximum permissible irrigated area (in ha) for wheat, with a base period of $120$ days and delta of $50$ cm, is __________

The culturable command area of a canal is $10.000$ ha. The area grows only two crops – rice in the Kharif season and wheat in the Rabi season. The design discharge of t...

gatecse

4.0k points

gatecse asked Aug 7, 2019

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4

GATE2019 CE-2: 15
An earthen dam of height $H$ is made of cohesive soil whose cohesion and unit weight arc $c$ and $\gamma$ respectively. If the factor of safety against cohesion is $F_c$, the Taylor’s stability number $(S_n)$ is $\dfrac{\gamma H}{cF_c} \\$ $\dfrac{cF_c}{\gamma H} \\$ $\dfrac{c}{F_c \gamma H} \\$ $\dfrac{F_c \gamma H}{c}$

An earthen dam of height $H$ is made of cohesive soil whose cohesion and unit weight arc $c$ and $\gamma$ respectively. If the factor of safety against cohesion is $F_c$,...

Arjun

13.0k points

Arjun asked Feb 12, 2019

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5

GATE2019 CE-2: 24
The command area of a canal grows only one crop, i.e., wheat. The base period of wheat is $120$ days and its total water requirement, $\Delta$, is $40 \: cm$. If the canal discharge is $2 \: m^3/s$, the area, in hectares, rounded off to the nearest integer, which could be irrigated (neglecting all losses) is _________

The command area of a canal grows only one crop, i.e., wheat. The base period of wheat is $120$ days and its total water requirement, $\Delta$, is $40 \: cm$. If the cana...

Arjun

13.0k points

Arjun asked Feb 12, 2019

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6

GATE2016-2-14
Profile of a weir on permeable foundation is shown in the figure I and an elementary profile of upstream pile only case' according to Khosla's theory is shown in the figure II. The uplift pressure heads at key points $Q, R$ and $S$ are $3.14 \: m$, $2.75 \: m$ ... (junction of floor and pile as shown in the figure I)? $2.75 \: m$ $1.25 \: m$ $0.8 \: m$ Data not sufficient

Profile of a weir on permeable foundation is shown in the figure I and an elementary profile of ‘upstream pile only case’ according to Khosla’s theory is shown in t...

Milicevic3306

11.9k points

Milicevic3306 asked Mar 27, 2018

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7

GATE2016-1-48
A sector gate is provided on a spillway as shown in the figure. Assuming $g=10 \: m/s^2$, the resultant force per meter length (expressed in kN/m) on the gate will be _____

A sector gate is provided on a spillway as shown in the figure. Assuming $g=10 \: m/s^2$, the resultant force per meter length (expressed in kN/m) on the gate will be ___...

Milicevic3306

11.9k points

Milicevic3306 asked Mar 27, 2018

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8

GATE2017 CE-1: 30
Group I contains three broad classes of irrigation supply canal outlets, Group II presents hydraulic performance attributes. ... $P - 2; \: Q - 3; \: R - 1$ $P - 1; \: Q - 3; \: R - 2$

Group I contains three broad classes of irrigation supply canal outlets, Group II presents hydraulic performance attributes.$$\begin{array}{|ll|ll|} \hline {} & \text{Gro...

Milicevic3306

11.9k points

Milicevic3306 asked Mar 26, 2018

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9

GATE2015-2-42
A field channel has cultivable commanded are 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 $18$ ... cm. The discharge (in $m^3/s$) required in the filed channel to supply water to the commanded area during the kor period is ________.

A field channel has cultivable commanded are of $2000$ hectares. The intensities of irrigation for gram and wheat are $30 \%$ and $50\%$ respectively. Gram has a kor peri...

Milicevic3306

11.9k points

Milicevic3306 asked Mar 26, 2018

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10

GATE2015-2-43
A triangular gate with a base width of $2$ m and a height of $1.5$ m lies in a vertical plane. The top vertex of the gate is $1.5$ m below the surface of a tank which contains oil of specific gravity $0.8$. Considering the density of water and acceleration due ... $9.81 m/s^2$ respectively, the hydrostatic force (in kN) exerted by the oil on the gate is _________.

A triangular gate with a base width of $2$ m and a height of $1.5$ m lies in a vertical plane. The top vertex of the gate is $1.5$ m below the surface of a tank which con...

Milicevic3306

11.9k points

Milicevic3306 asked Mar 26, 2018

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11

GATE2014-2-44
Irrigation water is to be provided to a crop in a field to bring the moisture content of the soil from the existing $18 \%$ to the field capacity of the soil at $28 \%$. The effective root zone of the crop is $70$ cm. If the densities of the soil and water ... $1.0 \: gm/cm^3$ respectively, the depth of irrigation water (in mm) required for irrigating the crop is ________

Irrigation water is to be provided to a crop in a field to bring the moisture content of the soil from the existing $18 \%$ to the field capacity of the soil at $28 \%$. ...

Milicevic3306

11.9k points

Milicevic3306 asked Mar 25, 2018

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12

GATE2014-1-40
The flow net constructed for the dam is shown in the figure below. Taking the coefficient of permeability as $3.8 \times 10^{-6}$ m/s, the quantity of flow (in $cm^3/s$) under the dam per meter of dam is __________

The flow net constructed for the dam is shown in the figure below. Taking the coefficient of permeability as $3.8 \times 10^{-6}$ m/s, the quantity of flow (in $cm^3/s$) ...

Milicevic3306

11.9k points

Milicevic3306 asked Mar 25, 2018

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13

GATE Civil 2013 | Question: 41
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 $612$ $216$ $300$ $108$

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...

Milicevic3306

11.9k points

Milicevic3306 asked Mar 25, 2018

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14

GATE Civil 2012 | Question: 41
Wheat crop requires $55$ cm of water during $120$ days of base period. The total rainfall during this period is $100$ mm. Assume the irrigation efficiency to be $60\%$. The area (in ha) of the land which can be irrigated with canal flow of $0.01 \: m^3/s$ is $13.82$ $18.85$ $23.04$ $230.40$

Wheat crop requires $55$ cm of water during $120$ days of base period. The total rainfall during this period is $100$ mm. Assume the irrigation efficiency to be $60\%$. T...

Milicevic3306

11.9k points

Milicevic3306 asked Mar 25, 2018

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15

GATE2018 CE-2: 24
The intensity of irrigation for the $\textit{kharif}$ season is $50 \%$ for an irrigation project with culturable command area of $50,000 $ hectares. The duty for the $\textit{kharif}$ season is $1000$ hectare/cumec. Assuming transmission loss of $10 \%$, the required discharge (in cumec, up to two decimal places) at the head of the canal is _____

The intensity of irrigation for the $\textit{kharif}$ season is $50 \%$ for an irrigation project with culturable command area of $50,000 $ hectares. The duty for the $\t...

gatecse

4.0k points

gatecse asked Feb 17, 2018

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16

GATE2018 CE-1: 22
A $1:50$ model of a spillway is to be tested in the laboratory. The discharge in the prototype spillway is $1000 \: m^3/s$. The corresponding discharge (in $m^3/s$, up to two decimal places) to be maintained in the model, neglecting variation in acceleration due to gravity, is _______

A $1:50$ model of a spillway is to be tested in the laboratory. The discharge in the prototype spillway is $1000 \: m^3/s$. The corresponding discharge (in $m^3/s$, up to...

gatecse

4.0k points

gatecse asked Feb 17, 2018