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Recent questions tagged irrigation
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GATE2020CE115
The data for an agricultural field for a specific month are given below: ... $mm$) to be applied to the field in that month, is $0$ $20$ $40$ $80$
asked
Feb 28
in
Irrigation
by
jothee
(
2.7k
points)
gate2020ce1
irrigation
waterresourcesengineering
0
votes
0
answers
2
GATE2020 CE213
Superpassage is a canal crossdrainage 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
asked
Feb 13
in
Irrigation
by
jothee
(
2.7k
points)
gate2020ce2
irrigation
waterresourcesengineering
crossdrainagestructures
0
votes
0
answers
3
GATE2020 CE236
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 $7$ $10$ $11$ $13$
asked
Feb 13
in
Irrigation
by
jothee
(
2.7k
points)
gate2020ce2
irrigation
waterresourcesengineering
0
votes
0
answers
4
GATE2017 CE248
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 __________
asked
Aug 7, 2019
in
Irrigation
by
gatecse
(
3.9k
points)
gate2017ce2
numericalanswers
irrigation
waterresourcesengineering
designoflinedandunlinedcanals
0
votes
0
answers
5
GATE2019 CE2: 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 $\dfrac{\gamma H}{cF_c} \\$ $\dfrac{cF_c}{\gamma H} \\$ $\dfrac{c}{F_c \gamma H} \\$ $\dfrac{F_c \gamma H}{c}$
asked
Feb 12, 2019
in
Water Resources Engineering
by
Arjun
(
2.8k
points)
gate2019ce2
waterresourcesengineering
irrigation
dams
0
votes
0
answers
6
GATE2019 CE2: 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 _________
asked
Feb 12, 2019
in
Irrigation
by
Arjun
(
2.8k
points)
gate2019ce2
numericalanswers
irrigation
waterresourcesengineering
0
votes
0
answers
7
GATE2016214
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
asked
Mar 28, 2018
in
Irrigation
by
Milicevic3306
(
11.9k
points)
gate2016ce2
irrigation
waterresourcesengineering
designofweirsonpermeablefoundation
0
votes
0
answers
8
GATE2016148
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 _____
asked
Mar 28, 2018
in
Irrigation
by
Milicevic3306
(
11.9k
points)
gate2016ce1
numericalanswers
irrigation
waterresourcesengineering
spillways
0
votes
0
answers
9
GATE2017 CE1: 30
Group I contains three broad classes of irrigation supply canal outlets, Group II presents hydraulic performance attributes. ... $P  2; \: Q  3; \: R  1$ $P  1; \: Q  3; \: R  2$
asked
Mar 26, 2018
in
Irrigation
by
Milicevic3306
(
11.9k
points)
gate2017ce1
irrigation
waterresourcesengineering
0
votes
0
answers
10
GATE2015242
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 ________.
asked
Mar 26, 2018
in
Irrigation
by
Milicevic3306
(
11.9k
points)
gate2015ce2
numericalanswers
irrigation
waterresourcesengineering
korperiod
0
votes
0
answers
11
GATE2015243
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 _________.
asked
Mar 26, 2018
in
Irrigation
by
Milicevic3306
(
11.9k
points)
gate2015ce2
numericalanswers
irrigation
waterresourcesengineering
gravity
hydrostaticforce
0
votes
0
answers
12
GATE2014244
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 ________
asked
Mar 26, 2018
in
Irrigation
by
Milicevic3306
(
11.9k
points)
gate2014ce2
numericalanswers
irrigation
waterresourcesengineering
0
votes
0
answers
13
GATE2014140
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 __________
asked
Mar 26, 2018
in
Irrigation
by
Milicevic3306
(
11.9k
points)
gate2014ce1
numericalanswers
irrigation
dams
waterresourceengineering
coefficientofpermeability
0
votes
0
answers
14
GATE201341
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 $612$ $216$ $300$ $108$
asked
Mar 26, 2018
in
Irrigation
by
Milicevic3306
(
11.9k
points)
gate2013ce
irrigation
waterresourcesengineering
transplantation
0
votes
0
answers
15
GATE201254
The drainage are of a watershed is $50 \: km^2$. The $\phi$ index is $0.5$ cm/hour and the base flow at the outlet is $10 \: m^3/s$. One hour unit hydrograph (unit depth $=1 \: cm$) of the water shed is triangular in shape with a time base of $15$ hours. The peak ordinate occurs at $5$ hours. The peak ordinate (in $m^3/s/cm$) of the unit hydrograph is $10.00$ $18.52$ $37.03$ $185.20$
asked
Mar 25, 2018
in
Irrigation
by
Milicevic3306
(
11.9k
points)
gate2012ce
irrigation
waterresourcesengineering
drainage
unithydrographs
0
votes
0
answers
16
GATE201241
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 $13.82$ $18.85$ $23.04$ $230.40$
asked
Mar 25, 2018
in
Irrigation
by
Milicevic3306
(
11.9k
points)
gate2012ce
irrigation
waterresourcesengineering
irrigationefficiency
0
votes
0
answers
17
GATE201236
Two soil specimens with identical geometric dimensions were subjected to failing head permeability tests in the laboratory under identical conditions. The fall of water head was measured after an identical time interval. The ratio of initial to final water heads for the test involving the ... final water heads in the test involving the second specimen is $3.05$ $3.80$ $4.00$ $6.25$
asked
Mar 25, 2018
in
Irrigation
by
Milicevic3306
(
11.9k
points)
gate2012ce
irrigation
waterresourcesengineering
headworks
0
votes
0
answers
18
GATE2018 CE2: 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 _____
asked
Feb 17, 2018
in
Irrigation
by
gatecse
(
3.9k
points)
gate2018ce2
numericalanswers
irrigation
waterresourcesengineering
canalregulatoryworks
0
votes
1
answer
19
GATE2018 CE1: 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 _______
asked
Feb 17, 2018
in
Irrigation
by
gatecse
(
3.9k
points)
gate2018ce1
numericalanswers
irrigation
waterresourcesengineering
spillways
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