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Recent questions tagged waterresourcesengineering
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1
GATE2020CE117
An amount of $35.67\:mg\:HCl$ is added to distilled water and the total solution volume is made to one litre. The atomic weights of $H$ and $Cl$ are $1$ and $35.5$, respectively. Neglecting the dissociation of water, the pH of the solution, is $3.50$ $3.01$ $2.50$ $2.01$
asked
Feb 28, 2020
in
Water Resources Engineering
by
jothee
(
5.2k
points)
gate2020ce1
waterresourcesengineering
waterandwastewater
0
votes
0
answers
2
GATE2020CE136
Water flows at the rate of $12\:m^3/s$ in a $6\:m$ wide rectangular channel. A hydraulic jump is formed in the channel at a point where the upstream depth is $30\:cm$ (just before the jump). Considering acceleration due to gravity as $9.81\:m/s^2$ and density of water as $1000\:kg/m^3$, the energy loss in the jump is $114.2\:kW$ $114.2\:MW$ $141.2\:h.p.$ $141.2\:J/s$
asked
Feb 28, 2020
in
Hydraulics
by
jothee
(
5.2k
points)
gate2020ce1
hydraulics
waterresourcesengineering
flowmeasurementinchannels
0
votes
0
answers
3
GATE2020CE137
A water supply scheme transports $10\:MLD$ (MIllion Litres per Day) water through a $450\:mm$ diameter pipeline for a distance of $2.5\:km$. A chlorine dose of $3.50\:mg/litre$ is applied at the starting point of the pipeline to attain a certain level of disinfection at ... the chlorine dose (in $mg/litre$) to be applied at the starting point should be $3.95$ $4.40$ $4.75$ $5.55$
asked
Feb 28, 2020
in
Fluid Mechanics
by
jothee
(
5.2k
points)
gate2020ce1
fluidmechanics
waterresourcesengineering
flowinpipes
0
votes
0
answers
4
GATE2020 CE212
Muskingum method is used in hydrologic reservoir routing hydrologic channel routing hydraulic channel routing hydraulic reservoir routing
asked
Feb 13, 2020
in
Hydrology
by
jothee
(
5.2k
points)
gate2020ce2
hydrology
hydraulics
waterresourcesengineering
muskingummethod
0
votes
0
answers
5
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, 2020
in
Irrigation
by
jothee
(
5.2k
points)
gate2020ce2
irrigation
waterresourcesengineering
crossdrainagestructures
canals
0
votes
0
answers
6
GATE2020 CE214
A triangular direct runoff hydrograph due to a storm has a time base of $90$ hours. The peak flow of $60\: m^3/s$ occurs at $20$ hours from the start of the storm. The area of catchment is $300\: km^2$. The rainfall excess of the storm (in cm), is $2.00$ $3.24$ $5.40$ $6.48$
asked
Feb 13, 2020
in
Hydrology
by
jothee
(
5.2k
points)
gate2020ce2
hydrology
waterresourcesengineering
hydrographs
surfacerunoffmodels
0
votes
0
answers
7
GATE2020 CE215
The velocity components in the $x$ and $y$ directions for an incompressible flow are given as $u = (5 + 6x)$ and $v = (9+6y)$, respectively. The equation of the streamline is $(5+6x)(9+6y) = \text{constant}$ $\dfrac{5+6x}{9+6y}= \text{constant}$ $(5+6x)(9+6y) = \text{constant}$ $\dfrac{9+6y}{5+6x}= \text{constant}$
asked
Feb 13, 2020
in
Fluid Mechanics
by
jothee
(
5.2k
points)
gate2020ce2
waterresourcesengineering
flowinpipes
incompressibleflow
0
votes
0
answers
8
GATE2020 CE237
Alkalinity of water, in equivalent/litre (eq/litre), is given by ${\{HC{O_3}^}\} + 2{\{C{O_3}^{2}}\} + {\{OH^\}}\ \ {\{H^+\}}$ where, $\{\ \ \}$ represents concentration in $\text{mol/litre}$ ... and $H^+$ are NEGLECTED, the alkalinity of the water sample $\text{(in mg/litre as}\: CaCO_3),$ is $130.4$ $100.0$ $50.0$ $65.2$
asked
Feb 13, 2020
in
Water Resources Engineering
by
jothee
(
5.2k
points)
gate2020ce2
waterresourcesengineering
alkalinityofwatersample
0
votes
0
answers
9
GATE2017 CE27
If a centrifugal pump has an impeller speed of $N$ (in rpm), discharge $Q$ (in $m^3/s$) and the total head $H$ (in $m$), the expression for the specific speed $N_s$ of the pump is given by $N_s = \dfrac{NQ^{0.5}}{H^{0.5}} \\$ $N_s = \dfrac{NQ^{0.5}}{H}\\$ $N_s = \dfrac{NQ^{0.5}}{H^{0.75}} \\$ $N_s = \dfrac{NQ}{H^{0.5}}$
asked
Aug 7, 2019
in
Hydraulics
by
gatecse
(
4k
points)
gate2017ce2
hydraulics
waterresourcesengineering
specificspeedofpumps
0
votes
0
answers
10
GATE2017 CE223
During a storm event in a certain period, the rainfall intensity is $3.5$ cm/hour and the $\Phi$index is $1.5$ cm/hour. The intensity of effective rainfall (in cm/hour, up to one decimal place) for this period is ________
asked
Aug 7, 2019
in
Hydrology
by
gatecse
(
4k
points)
gate2017ce2
numericalanswers
waterresourcesengineering
hydrology
hydrographs
surfacerunoffmodels
0
votes
0
answers
11
GATE2017 CE224
The infiltration capacity of a soil follows the Horton's exponential model, $f=c_1+c_2e^{kt}$. During an experiment, the initial infiltration capacity was observed to be $200$ mm/h. After a long time, the infiltration capacity was reduced $25$ mm/h. If the filtration capacity ... $k$ (in $h^{1}$, up to two decimal places) is ________
asked
Aug 7, 2019
in
Hydrology
by
gatecse
(
4k
points)
gate2017ce2
numericalanswers
waterresourcesengineering
hydrology
infiltration
0
votes
0
answers
12
GATE2017 CE245
The figure shows a Utube having a $5 \: mm \times 5 mm$ square crosssection filled with mercury (specific gravity $13.6$) up to a height of $20 $ cm in each limb (open to atmosphere) If $5 \: cm^3$ of water is added to the right limb, the new height (in cm, up to two decimal places) of mercury in the LEFT limb will be ________
asked
Aug 7, 2019
in
Fluid Mechanics
by
gatecse
(
4k
points)
gate2017ce2
numericalanswers
waterresourcesengineering
fluidmechanics
fluidstatics
0
votes
0
answers
13
GATE2017 CE246
A $1$ m wide rectangular channel carries a discharge of $2 \: m^3 /s$. The specific energydepth diagram is prepared for the channel. It is observed in this diagram that corresponding to a particular specific energy, the subcritical depth is twice the supercritical depth. The subcritical depth (in meters, up to two decimal places) is equal to ________
asked
Aug 7, 2019
in
Water Resources Engineering
by
gatecse
(
4k
points)
gate2017ce2
numericalanswers
waterresourcesengineering
hydraulics
channelhydraulicsenergydepthrelationships
0
votes
0
answers
14
GATE2017 CE247
A catchment is idealized as a $25 \: km \times 25 \: km$ ... . The average precipitation (in mm, up to one decimal place) over the catchment during this month by using the Thiessen polygon method is ___________
asked
Aug 7, 2019
in
Hydrology
by
gatecse
(
4k
points)
gate2017ce2
numericalanswers
hydrology
waterresourcesengineering
precipitation
0
votes
0
answers
15
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
(
4k
points)
gate2017ce2
numericalanswers
irrigation
waterresourcesengineering
designoflinedandunlinedcanals
0
votes
0
answers
16
GATE2017 CE249
Water is pumped at a steady uniform flow rate of $0.01 \: m^3/s$ through a horizontal smooth circular pipe of $100$ mm diameter. Given that the Reynolds number is $800$ and $g$ is $9.81 \: m/s^2$, the head loss (in meters, up to one decimal place) per km length due to friction would be _______
asked
Aug 7, 2019
in
Hydraulics
by
gatecse
(
4k
points)
gate2017ce2
numericalanswers
hydraulics
waterresourcesengineering
uniformflow
0
votes
0
answers
17
GATE2017 CE253
The analysis of a water sample produces the following results: ... $CaCO_3$) of the water sample is _______
asked
Aug 7, 2019
in
Water Resources Engineering
by
gatecse
(
4k
points)
gate2017ce2
numericalanswers
waterresourcesengineering
0
votes
0
answers
18
GATE2019 CE1: 13
In a rectangular channel, the ratio of the velocity head to the flow depth for critical flow condition, is $\dfrac{1}{2}\\$ $\dfrac{2}{3} \\$ $\dfrac{3}{2} \\$ $2$
asked
Feb 14, 2019
in
Hydraulics
by
Arjun
(
8.7k
points)
gate2019ce1
flowmeasurementinchannels
hydraulics
waterresourcesengineering
0
votes
0
answers
19
GATE2019 CE1: 14
If the path of an irrigation canal is below the bed level of a natural stream, the type of crossdrainage structure provided is Aqueduct Level crossing Sluice gate Super passage
asked
Feb 14, 2019
in
Irrigation
by
Arjun
(
8.7k
points)
gate2019ce1
irrgation
waterresourcesengineering
crossdrainagestructures
canals
0
votes
0
answers
20
GATE2019 CE1: 15
A catchment may be idealised as a rectangle. There are three rain gauges located inside the catchment at arbitrary locations. The average precipitation over the catchment is estimated by two methods: Arithmetic mean $(P_A)$ Thiessen polygon $(P_T)$ Which one of the ... greater than $P_T$ $P_A$ is always equal to $P_T$ There is no definite relationship between $P_A$ and $P_T$
asked
Feb 14, 2019
in
Hydrology
by
Arjun
(
8.7k
points)
gate2019ce1
waterresourcesengineering
hydrology
precipitation
arithmeticmeanandthiessenpolygon
0
votes
0
answers
21
GATE2019 CE1: 22
A circular duct carrying water gradually contracts from a diameter of $30 \: cm$ to $15 \: cm$. The figure (not drawn to scale) shows the arrangement to differential manometer attached to the duct. When the water flows, the differential manometer shows a ... Assuming frictionless flow, the flow rate (in $m^3/s$, round off to $3$ decimal places) through the duct is ________
asked
Feb 14, 2019
in
Fluid Mechanics
by
Arjun
(
8.7k
points)
gate2019ce1
numericalanswers
waterresourcesengineering
fluidmechanics
manometer
flowinpipes
0
votes
0
answers
22
GATE2019 CE1: 28
A rectangular open channel has a width of $5 \: m$ and a bed slope of $0.001$. For a uniform flow of depth $2 \: m$, the velocity is $2 \: m/s$. The Manning’s roughness coefficient for the channel is $0.002$ $0.017$ $0.033$ $0.050$
asked
Feb 14, 2019
in
Water Resources Engineering
by
Arjun
(
8.7k
points)
gate2019ce1
waterresourcesengineering
manning'sroughnesscoefficient
0
votes
0
answers
23
GATE2019 CE1: 49
The hyetograph of a storm event of duration $140$ minutes is shown in the figure: The infiltration capacity at the start of this event $(t=0)$ is $17 \: mm/hour$, which linearly decreases to $10 \: mm/hour$ after $40$ minutes duration. As the event ... of the storm event. The value of the infiltration index, $\phi$ (in $mm/hour$ round off to $2$ decimal places), is _____________
asked
Feb 14, 2019
in
Hydrology
by
Arjun
(
8.7k
points)
gate2019ce1
numericalanswers
waterresourcesengineering
hydrology
infiltration
0
votes
0
answers
24
GATE2019 CE1: 50
Two water reservoirs are connected by a siphon (running full) of total length $5000$ m and diameter of $1.10$ m, as shown below (figure not drawn to scale). The inlet leg length of the siphon to its summit is $2000$ m. The difference in the water surface ... of the summit of siphon from the water level of upper reservoir, $h$ (in m, round off to $1$ decimal place) is ______
asked
Feb 14, 2019
in
Hydrology
by
Arjun
(
8.7k
points)
gate2019ce1
numericalanswers
hydrology
waterresourcesengineering
reservoirs
0
votes
0
answers
25
GATE2019 CE1: 51
Consider a laminar flow in the xdirection between two infinite parallel plates (Couette flow). The lower plate is stationary and the upper plate is moving with a velocity of $1 \: cm/s$ in the xdirection. The distance between the plates is $5 \: mm$ and the dynamic viscosity ... $\dfrac {\partial p}{\partial x}$, (in $N/m^2$ per $m$, round off to $1$ decimal place) is _________
asked
Feb 14, 2019
in
Fluid Mechanics
by
Arjun
(
8.7k
points)
gate2019ce1
numericalanswers
fluidmechanics
waterresourcesengineering
laminarflow
0
votes
0
answers
26
GATE2019 CE2: 12
A solid sphere of radius, $r$, and made of material with density, $\rho_s$, is moving through the atmosphere (constant pressure, $p$) with a velocity, $v$. The net force ONLY due to atmospheric pressure $(F_p)$ acting on the sphere at any time, $t$, is $\pi r^2 p$ $4 \pi r^2 p$ $\dfrac{4}{3} \pi r^3 \rho_s \dfrac{dv}{dt}$ zero
asked
Feb 12, 2019
in
Fluid Mechanics
by
Arjun
(
8.7k
points)
gate2019ce2
waterresourcesengineering
fluidmechanics
fluidstatics
0
votes
0
answers
27
GATE2019 CE2: 13
The velocity field in a flow system is given by $v=2\textbf{i}+(x+y) \textbf{j} + (xyz) \textbf{k}$. The acceleration of the fluid at $(1,1,2)$ is $2 \textbf{i}+ 10 \textbf{k}$ $4 \textbf{i}+ 12 \textbf{k}$ $ \textbf{j}+ \textbf{k}$ $4 \textbf{j}+ 10 \textbf{k}$
asked
Feb 12, 2019
in
Fluid Mechanics
by
Arjun
(
8.7k
points)
gate2019ce2
waterresourcesengineering
fluidmechanics
momentumandenergyequations
0
votes
0
answers
28
GATE2019 CE2: 14
An inflow hydrograph is routed through a reservoir to produce an outflow hydrograph. The peak flow of the inflow hydrograph is $P_I$ and the time of occurrence of the peak is $t_I$. The peak flow of the outflow hydrograph is $P_O$ and the time of occurrence of the peak is $t_O$. ... $P_I <P_O$ and $t_I > t_O$ $P_I >P_O$ and $t_I < t_O$ $P_I >P_O$ and $t_I > t_O$
asked
Feb 12, 2019
in
Hydrology
by
Arjun
(
8.7k
points)
gate2019ce2
hydrology
waterresourcesengineering
hydrographanalysis
0
votes
0
answers
29
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
Irrigation
by
Arjun
(
8.7k
points)
gate2019ce2
waterresourcesengineering
irrigation
dams
0
votes
0
answers
30
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
(
8.7k
points)
gate2019ce2
numericalanswers
irrigation
waterresourcesengineering
cropwaterrequirementsdelta
0
votes
0
answers
31
GATE2019 CE2: 27
Consider the hemispherical tank of radius $13 \: m$ as shown in the figure (not drawn to the scale). What is the valume of water (in $m^3$) when the depth of water at the centre of the tank is $6 \: m$? $78 \pi$ $156 \pi$ $396 \pi$ $468 \pi$
asked
Feb 12, 2019
in
Hydraulics
by
Arjun
(
8.7k
points)
gate2019ce2
hydraulics
waterresourcesengineering
graduallyvariedflow
hemisphericalflow
0
votes
0
answers
32
GATE2019 CE2: 47
A confined aquifer of $15 \: m$ constant thickness is sandwiched between two aquicludes as shown in the figure (not drawn to scale). The heads indicated by two piezometers P and Q are $55.2 \: m$ and $34.1 \: m$, respectively. The aquifer has a ... taken by the water to travel through the aquifer from piezometer location P to Q (in days, round off to $1$ decimal place) is ______
asked
Feb 12, 2019
in
Hydrology
by
Arjun
(
8.7k
points)
gate2019ce2
numericalanswers
hydrology
waterresourcesengineering
hydraulicsandacquifers
0
votes
0
answers
33
GATE2019 CE2: 48
At the foot of a spillway, water flows at a depth of $23 \: cm$ with a velocity of $8.1 \: m/s$, as shown in the figure. The flow enters as an $M3$ profile in the long wide rectangular channel with bed slope $= \frac{1}{1800}$ and Manning's $n=0.015$ ... $y_1$ (in $m$, round off to $2$ decimal places) is _________
asked
Feb 12, 2019
in
Hydraulics
by
Arjun
(
8.7k
points)
gate2019ce2
numericalanswers
flowmeasurementinchannels
hydraulics
waterresourcesengineering
hydraulicjump
0
votes
0
answers
34
GATE2019 CE2: 49
Two identical pipes (i.e., having the same length, same diameter, and same roughness) are used to withdraw water from a reservoir. In the first case, they are attached in series and discharge freely into the atmosphere. In the second case, they are ... ratio of the discharge in the parallel arrangement to that in the series arrangement (round off to $2$ decimal places) is ________
asked
Feb 12, 2019
in
Fluid Mechanics
by
Arjun
(
8.7k
points)
gate2019ce2
numericalanswers
fluidmechanics
waterresourcesengineering
pipes
reservoirs
0
votes
0
answers
35
GATE2019 CE2: 50
The ordinates, $u$, of a $2$hour unit hydrograph (i.e., for $1$ ... base flow is constant at $5 \: m^3/s$, the peak flow due to this storm (in $m^3/s$, round off to $1$ decimal place) will be __________
asked
Feb 12, 2019
in
Hydrology
by
Arjun
(
8.7k
points)
gate2019ce2
numericalanswers
hydrology
waterresourcesengineering
hydrographs
surfacerunoffmodels
0
votes
0
answers
36
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
37
GATE2016215
Water table of an aquifer drops by $100$ cm over an area of $1000 \: km^2$. The porosity and specific retention of the aquifer material are $25 \%$ and $5\%$ respectively. The amount of water (expressed in $km^3$) drained out from the area is ________
asked
Mar 28, 2018
in
Hydrology
by
Milicevic3306
(
11.9k
points)
gate2016ce2
numericalanswers
waterresourcesengineering
hydrology
aquifers
0
votes
0
answers
38
GATE2016216
Group I contains the types of fluids while group II contains the shear stress  rate of shear relationship of different types of fluids, as shown in the figure. ... $P2, Q5, R4, S1$ $P2, Q4, R5, S3$ $P2, Q1, R3, S4$
asked
Mar 28, 2018
in
Fluid Mechanics
by
Milicevic3306
(
11.9k
points)
gate2016ce2
waterresourcesengineering
fluidmechanics
fluidstatics
0
votes
0
answers
39
GATE2016246
The ordinates of a onehour unit hydrograph at sixty minute interval are $0, 3, 12, 8, 6, 3$ and $0 \: m^3/s$. A twohour storm of $4$ cm excess rainfall occurred in the basin from $10$ AM. Considering constant base flow of $20 \: m^3/s$, the flow of the river (expressed in $m^3/s$) at $1$ PM is ________
asked
Mar 28, 2018
in
Hydrology
by
Milicevic3306
(
11.9k
points)
gate2016ce2
numericalanswers
hydrology
waterresourcesengineering
hydrographs
0
votes
0
answers
40
GATE2016248
A penstock of $1 \: m$ diameter and $5 \: km$ length is used to supply water from a reservoir to an impulse turbine. A nozzle of $15 \: cm$ diameter is fixed at the end of penstock. The elevation difference between the turbine and water level in the ... $80\%$, power generated (expressed in $kW$ and rounded to nearest integer) is _________
asked
Mar 28, 2018
in
Hydrology
by
Milicevic3306
(
11.9k
points)
gate2016ce2
numericalanswers
waterresourcesengineering
hydrology
reservoircapacity
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