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Introducing new Paper mode
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20 questions
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- Multiple ChoicePlease save your changes before editing any questions.
One litre of water occupies a volume of
100 cm3
250 cm3
500 cm3
1000 cm3
- Multiple ChoicePlease save your changes before editing any questions.
The value of bulk modulus of a fluid is required to determine
Reynold's number
Froude's number
Mach number
Euler's number
- Multiple ChoicePlease save your changes before editing any questions.
In one dimensional flow, the flow
is steady and uniform
takes place in straight line
takes place in curve
takes place in one direction
- Multiple ChoicePlease save your changes before editing any questions.
The kinematic viscosity is the
ratio of absolute viscosity to the density of the liquid
ratio of density of the liquid to the absolute viscosity
product of absolute viscosity and density of the liquid
product of absolute viscosity and mass of the liquid
- Multiple ChoicePlease save your changes before editing any questions.
The pressure less than atmospheric pressure is known as
suction pressure
vacuum pressure
negative gauge pressure
all of these
- Multiple ChoicePlease save your changes before editing any questions.
The total energy line lies over the hydraulic gradient line by an amount equal to the
pressure head
velocity head
pressure head + velocity head
pressure head - velocity head
- Multiple ChoicePlease save your changes before editing any questions.
If a body floating in a liquid returns back to its original position, when given a small angular displacement, the body is said to be in
neutral equilibrium
stable equilibrium
unstable equilibrium
none of these
- Multiple ChoicePlease save your changes before editing any questions.
The power transmitted through a pipe is (where w = Specific weight in N/m3, and Q = Discharge in m3/s)
w x Q x H
w x Q x hf
w x Q (H - hf)
w x Q (H + hf)
- Multiple ChoicePlease save your changes before editing any questions.
According to Archimede's principle, if a body is immersed partially or fully in a fluid then the buoyancy force is _______ the weight of fluid displaced by the body.
equal to
less than
more than
unpredictable
- Multiple ChoicePlease save your changes before editing any questions.
The component of the total force exerted by fluid on a body in the direction parallel to the direction of motion is called as
lift
drag
both a. and b.
none of the above
- Multiple ChoicePlease save your changes before editing any questions.
The fluid will rise in capillary when the capillary is placed in fluid, if
the adhesion force between molecules of fluid and tube is less than the cohesion between liquid molecules
the adhesion force between molecules of fluid and tube is more than the cohesion between liquid molecules
the adhesion force between molecules of fluid and tube is equal to the cohesion between liquid molecules
None of the above
- Multiple ChoicePlease save your changes before editing any questions.
What is an ideal fluid?
A fluid which has no viscosity
A fluid which is incompressible
A fluid which has no surface tension
All of the above
- Multiple ChoicePlease save your changes before editing any questions.
The hydraulic mean depth or the hydraulic radius is the ratio of
area of flow and wetted perimeter
wetted perimeter and diameter of pipe
velocity of flow and area of flow
none of these
- Multiple ChoicePlease save your changes before editing any questions.
When a body is placed over a liquid, it will float if
gravitational force is equal to the upthrust of the liquid
gravitational force is less than the upthrust of the liquid
gravitational force is more than the upthrust of the liquid
none of the above
- Multiple ChoicePlease save your changes before editing any questions.
The discharge through a channel of trapezoidal section is maximum when
width of channel at the top is equal to twice the width at the bottom
depth of channel is equal to the width at the bottom
the sloping side is equal to half the width at the top
the sloping side is equal to the width at the bottom
- Multiple ChoicePlease save your changes before editing any questions.
The tangential velocity of the water element having a free vortex is
directly proportional to its distance from the centre
inversely proportional to its distance from the centre
directly proportional to its (distance)2 from the centre
inversely proportional to its (distance)2 from the centre
- Multiple ChoicePlease save your changes before editing any questions.
A venturiflume is used to measure
pressure of liquid
discharge of liquid
pressure difference between two points in a channel
pressure difference between two points in a pipe
- Multiple ChoicePlease save your changes before editing any questions.
The metacentric height is the distance between the
centre of gravity of the floating body and the centre of buoyancy
centre of gravity of the floating body and the metacentre
metacentre and centre of buoyancy
original centre of buoyancy and new centre of buoyancy
- Multiple ChoicePlease save your changes before editing any questions.
The coefficient of discharge for an external mouthpiece depends upon
velocity of liquid
pressure of liquid
area of mouthpiece
length of mouthpiece
- Multiple ChoicePlease save your changes before editing any questions.
Select the wrong statement
An equivalent pipe is treated as an ordinary pipe for all calculations
The length of an equivalent pipe is equal to that of a compound pipe
The discharge through an equivalent pipe is equal to that of a compound pipe
The diameter of an equivalent pipe is equal to that of a compound pipe