In order to measure the flow with a Venturimeter, it is installed in
Horizontal line
Inclined line with flow upwards
Inclined line with flow downwards
Any direction and in any location
Correct Answer :
D. Any direction and in any location
Related Questions
The magnitude of water hammer depends upon the
Elastic properties of the pipe material
Elastic properties of the liquid flowing through the pipe
Speed at which the valve is closed
All of the above
A pitot tube is used to measure the
Velocity of flow at the required point in a pipe
Pressure difference between two points in a pipe
Total pressure of liquid flowing in a pipe
Discharge through a pipe
The unit of dynamic viscosity in S.I. units is
N-m/s2
N-s/m2
Poise
Stoke
The flow of water through the hole in the bottom of a wash basin is an example of
Steady flow
Uniform flow
Free vortex
Forced vortex
A vertical wall is subjected to a pressure due to one kind of liquid, on one of its sides. The total pressure on the wall acts at a distance __________ from the liquid surface.
H/3
H/2
2H/3
3H/4
The pressure at a point 4 m below the free surface of water is
19.24 kPa
29.24 kPa
39.24 kPa
49.24 kPa
Which of the following is the unit of kinematic viscosity?
Pascal
Poise
Stoke
Faraday
The power absorbed (in watts) in overcoming the viscous resistance of a footstep bearing is
μ π³ N² R² /1800 t
μ π³ N² R⁴ /1800 t
μ π³ N² R² /3600 t
μ π³ N² R⁴ /3600 t
A flow whose streamline is represented by a curve, is called
One-dimensional flow
Two-dimensional flow
Three-dimensional flow
Four-dimensional flow
The total pressure on the top of a closed cylindrical vessel completely filled up with a liquid is
Directly proportional to (radius)2
Inversely proportional to (radius)2
Directly proportional to (radius)4
Inversely proportional to (radius)4
The celerity (velocity) of a pressure wave in a fluid is given by (where K = Bulk modulus, and ρ = Density of the fluid)
K.ρ
K/ρ
ρ/K
None of these
One litre of water occupies a volume of
100 cm3
250 cm3
500 cm3
1000 cm3
The total energy of each particle at various places in the case of perfect incompressible fluid flowing in continuous stream
Keeps on increasing
Keeps on decreasing
Remain constant
May increase/decrease
The normal stress in a fluid will be constant in all directions at a point only if
It is incompressible
It has uniform viscosity
It has zero viscosity
It is at rest
A structure used to dam up a stream or river over which the water flows is called
Orifice
Notch
Weir
Dam
Reynold's number is the ratio of inertia force to
Pressure force
Elastic force
Gravity force
Viscous force
Bulk modulus of a fluid is the ratio of
Shear stress to shear strain
Increase in volume to the viscosity of fluid
Increase in pressure to the volumetric strain
Critical velocity to the viscosity of fluid
The factional resistance of a pipe varies approximately with __________ of the liquid.
Pressure
Velocity
Square of velocity
Cube of velocity
The torque required to overcome viscous resistance of a collar bearing is (where R1 andR2 = External and internal radius of collar)
(μπ²N/60t) × (R₁ - R₂)
(μπ²N/60t) × (R₁² - R₂²)
(μπ²N/60t) × (R₁³ - R₂³)
(μπ²N/60t) × (R₁⁴ - R₂⁴)
Which of the following statement is wrong?
A flow whose streamline is represented by a curve is called two dimensional flow.
The total energy of a liquid particle is the sum of potential energy, kinetic energy and pressure energy.
The length of divergent portion in a Venturimeter is equal to the convergent portion.
A pitot tube is used to measure the velocity of flow at the required point in a pipe.
Choose the wrong statement
Fluids are capable of flowing
Fluids conform to the shape of the containing vessels
When in equilibrium, fluids cannot sustain tangential forces
When in equilibrium, fluids can sustain shear forces
At the center line of a pipe flowing under pressure where the velocity gradient is zero, the shear stress will be
Minimum
Maximum
Zero
Could be any value
When a cylindrical vessel of radius (r) containing liquid is revolved about its vertical axis ω rad/s, then depth of parabola which the liquid assumes is
ω.r/2g
ω².r²/2g
ω.r/4g
ω².r²/4g
A pressure of 25 m of head of water is equal to
25 kN/ m²
245 kN/ m²
2500 kN/m²
2.5 kN/ m²
In order to avoid tendency of separation at throat in a Venturimeter, the ratio of the diameter at throat to the diameter of pipe should be
1/16 to 1/8
1/8 to 1/4
1/4 to 1/3
1/3 to 1/2
The angle of contact in case of a liquid depends upon
The nature of the liquid and the solid
The material which exists above the free surface of the liquid
Both of die above
Any one of the above
The Bernoulli's equation is based on the assumption that
There is no loss of energy of the liquid flowing
The velocity of flow is uniform across any cross-section of the pipe
No force except gravity acts on the fluid
All of the above
The flow in a pipe or channel is said to be uniform when
The liquid particles at all sections have the same velocities
The liquid particles at different sections have different velocities
The quantity of liquid flowing per second is constant
Each liquid particle has a definite path
A square surface 3 m × 3 m lies in a vertical line in water pipe its upper edge at water surface. The hydrostatic force on square surface is
9,000 kg
13,500 kg
18,000 kg
27,000 kg
A one dimensional flow is one which
Is uniform flow
Is steady uniform flow
Takes place in straight lines
Involves zero transverse component of flow