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Recent activity in Water Resources Engineering

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GATE Civil 2026 Set 2 | Question: 45
The flow depth for a discharge of $10 \mathrm{~m}^{3} / \mathrm{s}$ in a wide rectangular channel is $2.0 \text{ m}$. Assume that the flow is uniform.If the discharge is ...
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GATE Civil 2026 Set 2 | Question: 44
A centrifugal pump is delivering water from an underground tank to an overhead reservoir against a static head of $35$ m through a $2$ km long, $250$ mm diameter pipe. Th...
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GATE Civil 2026 Set 2 | Question: 43
The cross section of a $0.5$ m wide vertical gate holding water and oil is shown in the figure. The unit weights of water and oil are $10 ~\mathrm{kN} / \mathrm{m}^{3}$ a...
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GATE Civil 2026 Set 2 | Question: 42
Width (in m) of a rectangular channel required to carry a discharge of $96 \mathrm{~m}^{3} / \mathrm{s}$ at a critical depth of $9.8 \text{ m}$ is $\_\_\_\_$ (rounded off...
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GATE Civil 2026 Set 2 | Question: 33
Types of flood routing and methods are given in the table below.\[\begin{array}{|l|l|}\hline\begin{array}{l}\text{Column 1}\\\text{Type of Flood Routing}\end{array}&\begi...
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GATE Civil 2026 Set 2 | Question: 10
Following statements are made with respect to the mass curve of rainfall:Slope at a point on the curve can be positive.Slope at a point on the curve can be zero.Which one...
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GATE Civil 2026 Set 2 | Question: 9
The Culturable Command Area (CCA) for a canal is $10000$ hectares. The base period for a crop in the CCA is $140$ days. Watering depth for the crop is $40$ cm. The outlet...
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GATE Civil 2026 Set 1 | Question: 54
The intensity-duration relationship for a rainfall on a rectangular plot $\text{ABCD}$ of area $7$ \text{ha} ($1 \mathrm{~ha}=10^{4} \mathrm{~m}^{2}$) can be modelled by ...
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GATE Civil 2026 Set 1 | Question: 45
A bridge with an expected life of $50$ years is designed for a flood of $10000 \mathrm{~m}^{3} / \mathrm{s}$ corresponding to the return period of $100$ years. The risk a...
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GATE Civil 2026 Set 1 | Question: 44
A wide unlined channel carries sediment-free water. The depth of water is $1$ m. The specific weight of water is $10 \mathrm{~kN} / \mathrm{m}^{3}$. To prevent scouring, ...
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GATE Civil 2026 Set 1 | Question: 43
A fully-penetrating well of $20$ cm diameter is provided in an unconfined aquifer. The height of the ground water table is $30$ m from the bottom of the aquifer. After a ...
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GATE Civil 2026 Set 1 | Question: 31
In a laminar flow of a Newtonian fluid through a circular pipe of radius $5 \text{ cm}$, the maximum velocity is found to be $2 \mathrm{~m} / \mathrm{s}$. The velocity (i...
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GATE Civil 2026 Set 1 | Question: 30
For a hydraulic jump formed in a rectangular horizontal channel, the sequent depth ratio is $2$. The Froude number of supercritical stream is$\sqrt{3}$$\sqrt{5}$$\sqrt{6}...
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GATE Civil 2026 Set 1 | Question: 13
Gradually Varied Flow (GVF) profiles in open channels given in Column $1$ are to be matched with the water surface slopes in Column $2$ in the table below.\[\begin{array}...
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GATE Civil 2026 Set 1 | Question: 7
An irrigation canal is to be designed to deliver $10$ cumec to meet the peak demand of $7500$ hectare of cropped area. The estimated canal losses are $50 \%$ of the head ...
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GATE Civil 2026 Set 1 | Question: 6
Two reservoirs having different water levels are connected by two long parallel pipelines of same length and same material but having diameters of $600$ mm and $400$ mm. ...
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GATE Civil 2025 Set 1 | Question: 9
​​​​​For a flowing fluid, a dimensionless combination of velocity $(V)$, length scale $(l)$, and acceleration due to gravity $(g)$ would be$\frac{V^{2}}{g l}$$\frac{V g}{...
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GATE2015-1-43
Two reservoirs are connected through a $930$ m long, $0.3$ m diameter pipe, which has a gate valve. The pipe entrance is sharp (loss coefficient $=0.5$) and the valve is ...
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GATE2015-1-47
In a catchment, there are four rain-gauge stations, $P, Q, R$, and $S$. Normal annual precipitation values at these stations are $780$ mm, $850$ mm, $920$ mm, and $980$ m...
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GATE2015-1-48
The $4$-hr unit hydrograph for a catchment is given in the table below. What would be the maximum ordinate of the S – curve (in $m^3/s$) derived from this hydrograph?$$\b...
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GATE2014-2-20
The Muskingum model of routing a flood through a stream reach is expressed as $O_2 =K_0I_2+K_1I_1+K_2O_1$, where $K_0$, $K_1$ and $K_2$ are the routing coefficients for t...
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GATE2014-2-19
An isolated $3-h$ rainfall event on a small catchment produces a hydrograph peak and point of inflection on the falling limb of the hydrograph at $7$ hours and $8.5$ hour...
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GATE2014-1-18
A conventional flow duration curve is a plot betweenFlow and percentage time flow is exceededDuration of flooding and ground level elevationDuration of water supply in a ...
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GATE Civil 2013 | Question: 55
At a station, Storm I of $5$ hour duration with intensity $2$ cm/h resulted in a runoff of $4$ cm and Storm II of $8$ hour duration resulted in a runoff of $8.4$ cm. Assu...
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GATE Civil 2013 | Question: 54
At a station, Storm I of $5$ hour duration with intensity $2$ cm/h resulted in a runoff of $4$ cm and Storm II of $8$ hour duration resulted in a runoff of $8.4$ cm. Assu...
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GATE Civil 2013 | Question: 39
A $2$ km long pipe of $0.2$ m diameter connects two reservoirs. The difference between water levels in the reservoirs is $8$ m. The Darcy-Weisbachfriction factor of the p...
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GATE Civil 2013 | Question: 19
An isohyet is a line joining points ofequal temperatureequal humidityequal rainfall depthequal evaporation
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GATE Civil 2012 | Question: 19
The ratio of actual evapo-transpiration of potential evapo-transpiration is in the range$0.0$ to $0.4$$0.6$ to $0.9$$0.0$ to $1.0$$1.0$ to $2.0$
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GATE2018 CE-2: 47
The total rainfall in a catchment of area $1000 \: km^2$, during a $6$ h storm, is $19$ cm. The surface runoff due to this storm computed from triangular direct runoff hy...
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GATE2018 CE-2: 25
A culvert is designed for a flood frequency of $100$ years and a useful life of $20$ years. The risk involved in the design of the culvert (in percentage, up to two decim...
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GATE2018 CE-1: 24
For routing of flood in a given channel using the Muskingum method, two of the routing coefficients are estimated as $C_0=-0.25$ and $C_1=0.55$. The value of the third co...
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GATE Civil 2025 Set 2 | Question: 49
The peak of flood hydrograph due to a $3$-hour duration storm in a catchment is $180 \mathrm{~m}^{3} / \mathrm{s}$. The total rainfall depth is $6.6 \: \mathrm{cm}$. It c...
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GATE Civil 2021 Set 2 | Question: 31
A rectangular open channel of $\text{6 m}$ width is carrying a discharge of $20 \text{ m$^{3}$/s}$. Consider the acceleration due to gravity as $9.81 \text{ m/s}^{2}$ and...
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GATE Civil 2021 Set 2 | Question: 48
The hyetograph in the figure corresponds to a rainfall event of $\text{3 cm}$.If the rainfall event has produced a direct runoff of $\text{1.6 cm}$, the $\phi$-index of t...
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GATE Civil 2021 Set 2 | Question: 49
A venturimeter as shown in the figure (not to scale) is connected to measure the flow of water in a vertical pipe of $\text{20 cm}$ diameter.Assume $g=9.8\text{ m/s}^{2}$...
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GATE Civil 2021 Set 2 | Question: 50
A reservoir with a live storage of $300$ million cubic metre irrigates $40000$ hectares ( $1$ hectare= $10^{4}\text{ m}^{2}$) of a crop with two fillings of the reservoir...
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GATE Civil 2024 Set 2 | Question: 31
A round-bottom triangular lined canal is to be laid at a slope of $1$ in $1500$, to carry a discharge of $25 \mathrm{~m}^{3} / \mathrm{s}$. The side slopes of the canal c...
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GATE Civil 2024 Set 2 | Question: 46
A storm with a recorded precipitation of $11.0 \mathrm{~cm}$, as shown in the table, produced a direct run-off of $6.0 \mathrm{~cm}$.Time from start (hours)$1$$2$$3$$4$$5...
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GATE Civil 2024 Set 2 | Question: 49
A rectangular channel is $4.0 \mathrm{~m}$ wide and carries a discharge of $2.0 \mathrm{~m}^{3} / \mathrm{s}$ with a depth of $0.4 \mathrm{~m}$. The channel transitions t...
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GATE Civil 2024 Set 1 | Question: 10
The number of degrees of freedom for a natural open channel flow with a mobile bed is$2$$3$$4$$5$
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GATE Civil 2025 Set 2 | Question: 38
The drag force, $F_{D}$ on a sphere due to a fluid flowing past the sphere is a function of viscosity, $\mu$, the mass density, $\rho$, the velocity of flow, $V$, and the...
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GATE Civil 2025 Set 2 | Question: 11
Consider a velocity vector, $\vec{V}$ in $(x, y, z)$ coordinates given below. Pick one or more CORRECT statements(s) from the choices given below.$$\vec{V}=u \vec{x}+v \v...
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GATE Civil 2025 Set 1 | Question: 51
A symmetrical trapezoidal canal is $100 \: \mathrm{km}$ long. The bottom width is $10 \: \mathrm{m}$ and the side slope is $1$ Horizontal : $1$ Vertical. The average flow...
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GATE Civil 2025 Set 1 | Question: 52
A $5.0 \: \mathrm{m}$ wide rectangular channel carries a discharge of $10 \mathrm{~m}^{3} / \mathrm{s}$ at a depth of $1.5 \: \mathrm{m}$ under uniform flow. To produce c...
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GATE Civil 2023 Set 2 | Question: 34
The critical flow condition in a channel is given by ____________.[Note: $\alpha$ - kinetic energy correction factor; $Q$ - discharge; $A_c$ - cross-sectional area of flo...
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GATE Civil 2025 Set 1 | Question: 10
​​​​To derive the total flood hydrograph at a catchment outlet from an isolated storm, the order in which the following methods are applied, from the first method to the ...
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GATE Civil 2025 Set 1 | Question: 20
​​​​For the Bernoulli's equation to be applicable in a fluid flow situation, which of the following conditions is/are to be satisfied:Fluid should be frictionlessFluid sh...
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GATE Civil 2021 Set 2 | Question: 22
A $12$-hour unit hydrograph (of $\text{1 cm}$ excess rainfall) of a catchment is of a triangular shape with a base width of $144$ hour and a peak discharge of $23\text{ m...
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GATE Civil 2021 Set 2 | Question: 23
A lake has a maximum depth of $\text{60 m}$. If the mean atmospheric pressure in the lake region is $\text{91 kPa}$ and the unit weight of the lake water is $\text{9790 N...
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GATE Civil 2025 Set 2 | Question: 32
Consider flow in a long and very wide rectangular open channel. Width of the channel can be considered as infinity compared to the depth of flow. Uniform flow depth is $1...
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