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Recent questions and answers in Fluid Mechanics
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1
GATE Civil 2021 Set 2  Question: 12
The ratio of the momentum correction factor to the energy correction factor for a laminar flow in a pipe is $\frac{1}{2}$ $\frac{2}{3}$ $1$ $\frac{3}{2}$
asked
Mar 1
in
Fluid Mechanics
by
jothee
(
5.2k
points)
gatecivil2021set2
flowinpipes
laminarflow
0
votes
0
answers
2
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 $\text{9790 N/m}^{3}$, the absolute pressure (in $\text{kPa}, \textit{round off to two decimal places}$) at the maximum depth of the lake is ___________________
asked
Mar 1
in
Fluid Mechanics
by
jothee
(
5.2k
points)
gatecivil2021set2
numericalanswers
momentumandenergyequations
fluidstatics
0
votes
0
answers
3
GATE Civil 2021 Set 2  Question: 40
A fire hose nozzle directs a steady stream of water of velocity $\text{50 m/s}$ at an angle of $45^{\circ}$ above the horizontal. The stream rises initially but then eventually falls to the ground. Assume water as incompressible and ... ) reached by the stream above the hose nozzle will then be __________
asked
Mar 1
in
Fluid Mechanics
by
jothee
(
5.2k
points)
gatecivil2021set2
numericalanswers
propertiesoffluids
fluidstatics
0
votes
0
answers
4
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 $g=9.8\text{ m/s}^{2}$ ... $\text{lps}$, round off to two decimal places) considering no loss in the venturimeter is ______________________
asked
Mar 1
in
Fluid Mechanics
by
jothee
(
5.2k
points)
gatecivil2021set2
numericalanswers
flowinpipes
0
votes
0
answers
5
GATE Civil 2021 Set 1  Question: 10
‘Kinematic viscosity’ is dimensionally represented as $\frac{M}{LT}$ $\frac{M}{L^{2}T}$ $\frac{T^{2}}{L}$ $\frac{L^{2}}{T}$
asked
Feb 20
in
Fluid Mechanics
by
Arjun
(
8.7k
points)
gatecivil2021set1
kinematicviscosity
0
votes
0
answers
6
GATE Civil 2021 Set 1  Question: 49
A cylinder $\text{(2.0 m diameter, 3.0 m long and 25 kN weight)}$ is acted upon by water on one side and oil $\text{(specific gravity=0.8)}$ on other side as shown in the figure. The absolute ratio of the net magnitude of vertical forces to the net magnitude of horizontal forces ($\textit{round off to two decimal places}$) is _____________________
asked
Feb 20
in
Fluid Mechanics
by
Arjun
(
8.7k
points)
gatecivil2021set1
numericalanswers
propertiesoffluids
fluidstatics
0
votes
0
answers
7
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
8
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
9
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
10
GATE2017 CE1: 12
For a steady incompressible laminar flow between two infinite parallel stationary plates, the shear stress variation is linear with zero value at the plates linear with zero value at the center quadratic with zero value at the plates quadratic with zero value at the center
asked
Mar 26, 2018
in
Fluid Mechanics
by
Milicevic3306
(
11.9k
points)
gate2017ce1
fluidmechanics
waterresourcesengineering
laminarflow
shearstress
0
votes
0
answers
11
GATE2017 CE1: 23
A triangular pipe network is shown in the figure. The head loss in each pipe is given by $h_f = rQ^{1.8}$, with the variables expressed in a consistent set of units. The value of $r$ for the pipe $AB$ is $1$ and for the pipe $BC$ is $2$. If the ... is equally divided between the pipes $AB$ and $AC$, the value of $r$ (up to two decimal places) for the pipe $AC$ should be _______
asked
Mar 26, 2018
in
Fluid Mechanics
by
Milicevic3306
(
11.9k
points)
gate2017ce1
numericalanswers
fluidmechanics
waterresourcesengineering
flowinpipes
0
votes
0
answers
12
GATE2017 CE1: 49
Water flows through a $90^{\circ}$ bend in a horizontal plane as depicted in the figure. A pressure of $140$ kPa is measured at Section $11$. The inlet diameter marked at Section $11$ is $\frac{27}{\sqrt{\pi}}$ cm, while the nozzle ... bend is negligible. The magnitude of the force (in kN, up to two decimal places) that would be required to hold the pipe section is __________
asked
Mar 26, 2018
in
Fluid Mechanics
by
Milicevic3306
(
11.9k
points)
gate2017ce1
numericalanswers
flowinpipes
fluidmechanics
waterresourcesengineering
0
votes
0
answers
13
GATE2017 CE1: 53
The spherical grit particles, having a radius of $0.01$ mm and specific gravity of $3.0$, need to be separated in a settling chamber. It is given that $g=9.81 \: m/s^2$ the density of the liquid in the settling chamber $=1000 \: kg/m^3$ the ... settling chamber $=10^{6} \: m^2/s$ Assuming laminar conditions, the settling velocity (in mm/s, up to one decimal place) is __________
asked
Mar 26, 2018
in
Fluid Mechanics
by
Milicevic3306
(
11.9k
points)
gate2017ce1
numericalanswers
fluidmechanics
laminarconditions
environmentalengineering
0
votes
0
answers
14
GATE2014242
A venturimeter having a throat diameter of $0.1$ m is used to estimate the flow rate of a horizontal pipe having a diameter of $0.2$ m. For an observed pressure difference of $2$ m of water head and coefficient of discharge equal to unity, assuming that the energy losses are ... the flow rate (in $m^3/s$) through the pipe is approximately equal to $0.500$ $0.150$ $0.050$ $0.015$
asked
Mar 26, 2018
in
Fluid Mechanics
by
Milicevic3306
(
11.9k
points)
gate2014ce2
fluidmechanics
waterresourcesengineering
flowinpipes
0
votes
0
answers
15
GATE2014146
$16$ MLD of water is flowing through a $2.5$ km long pipe of diameter $45$ cm. The chlorine at the rate of $32$ kg/d is applied at the entry of this pipe so that disinfected water is obtained at the exit. There is a proposal to increase the flow through this ... per day) to be applied to achieve the same degree of disinfection for the enhanced flow is $60.50$ $44.00$ $38.00$ $23.27$
asked
Mar 26, 2018
in
Fluid Mechanics
by
Milicevic3306
(
11.9k
points)
gate2014ce1
fluidmechanics
waterresourcesengineering
flowinpipes
0
votes
0
answers
16
GATE2014145
An incompressible fluid is flowing at a steady rate in a horizontal pipe. From a section, the pipe divides into two horizontal parallel pipes of diameters $d_1$ and $d_2$ (where $d_1 =4d_2$) that run for a distance of $L$ each and then ... only and the DarcyWeisbach friction factor to be the same. The velocity ratio between the bigger and the smaller branched pipes is ____________
asked
Mar 26, 2018
in
Fluid Mechanics
by
Milicevic3306
(
11.9k
points)
gate2014ce1
numericalanswers
fluidmechanics
flowinpipes
waterresourcesengineering
0
votes
0
answers
17
GATE2014142
A venturimeter, having a diameter of $7.5$ cm at the throat an $15$ cm at the enlarged end, is installed in a horizontal pipeline of $15$ cm diameter. The pipe carries an incompressible fluid at a steady rate of $30$ litres per second, The difference of ... as $9.81 \: m/s^2$, the coefficient of discharge of the venturimeter (correct up to two places of decimal) is ____________
asked
Mar 26, 2018
in
Fluid Mechanics
by
Milicevic3306
(
11.9k
points)
gate2014ce1
numericalanswers
fluidmechanics
waterresourcesengineering
flowinpipes
steadyrate
0
votes
0
answers
18
GATE2014117
An incompressible homogeneous fluid is flowing steadily in a variable diameter pipe having the large and small diameters as $15$ cm and $5$ cm, respectively. If the velocity at a section at the $15$ cm diameter portion of the pipe is $2.5$ m/s, the velocity of the fluid (in m/s) at a section falling in $5$ cm portion of the pipe is _______
asked
Mar 26, 2018
in
Fluid Mechanics
by
Milicevic3306
(
11.9k
points)
gate2014ce1
numericalanswers
fluidmechanics
waterresourcesengineering
0
votes
0
answers
19
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 DarcyWeisbachfriction factor of the pipe is $0.04$. Accounting for frictional, entry exit losses, the velocity in the pipe (in m/s) is $0.63$ $0.35$ $2.52$ $1.25$
asked
Mar 26, 2018
in
Fluid Mechanics
by
Milicevic3306
(
11.9k
points)
gate2013ce
fluidmechanics
waterresourcesengineering
reservoirs
pipes
0
votes
0
answers
20
GATE Civil 2012  Question: 18
The circular water pipes shown in the sketch are flowing full. The velocity of flow (in m/s) in the branch pipe “R” is $3$ $4$ $5$ $6$
asked
Mar 25, 2018
in
Fluid Mechanics
by
Milicevic3306
(
11.9k
points)
gate2012ce
fluidmechanics
waterresourcesengineering
flowinpipes
0
votes
1
answer
21
GATE2018 CE2: 48
A rough pipe of $0.5$ m diameter, $300$ m length and roughness height of $0.25$ mm, carries water (kinematic viscosity $= 0.9 \times 10^{6} \: m^2/s$) with velocity of $3$ m/s. Friction factor $(f)$ for laminar flow is given by $f=64/R_e$, and for ... k=roughness height and $g=9.81 \: m/s^2$. The head loss (in m, up to three decimal places) in the pipe due to friction is _______
answered
Feb 17, 2018
in
Fluid Mechanics
by
Pushpendra Tiwari
gate2018ce2
numericalanswers
fluidmechanics
waterresourcesengineering
laminarflow
flowinpipes
0
votes
0
answers
22
GATE2018 CE2: 46
A threefluid system (immiscible) is connected to a vacuum pump. The specific gravity values of the fluids ($S_1, \: S_2$) are given in the figure. The gauge pressure value (in $kN/m^2$, up to two decimal places), of $p_1$ is _______
asked
Feb 17, 2018
in
Fluid Mechanics
by
gatecse
(
4k
points)
gate2018ce2
numericalanswers
fluidmechanics
waterresourcesengineering
gaugepressure
0
votes
0
answers
23
GATE2018 CE1: 12
Bernoulli's equation is applicable for viscous and compressible fluid flow inviscid and compressible fluid flow inviscid and incompressible fluid flow viscous and incompressible fluid flow
asked
Feb 17, 2018
in
Fluid Mechanics
by
gatecse
(
4k
points)
gate2018ce1
fluidmechanics
waterresourcesengineering
bernoulli'sequation
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