Related Questions

For one dimensional flow of an incompressible fluid in unsteady state in x-direction, the continuity equation is given by
A $$\frac{{\partial {\text{u}}}}{{\partial {\text{x}}}} = 0$$
B $$\frac{{\partial \left( {\rho {\text{u}}} \right)}}{{\partial {\text{x}}}} = 0$$
C $$\frac{{\partial {\text{u}}}}{{\partial {\text{x}}}} = - \frac{{\partial \rho }}{{\partial {\text{t}}}}$$
D $$\frac{{\partial \rho }}{{\partial {\text{t}}}} = 0$$
In which type of fluid flow, the velocity of flow of fluid changes from point to point in the fluid at any instant?
A Rotational
B Unsteady
C Turbulent
D Non-uniform
For steady ideal fluid flow, the Bernoulli's equation states that the
A Velocity is constant along a stream line
B Energy is constant throughout the fluid
C Energy is constant along a stream line, but may vary across stream lines
D None of these
The continuity equation of fluid mechanics utilises the principle of conservation of
A Momentum
B Mass
C Energy
D Both B & C
The equation of continuity holds good when the flow
A Is steady
B Is one dimensional
C Velocity is uniform at all the cross sections
D All of the above
According to Bernoulli's equation for steady ideal fluid flow
A Principle of conservation of mass holds
B Velocity and pressure are inversely proportional
C Total energy is constant throughout
D The energy is constant along a streamline but may vary across streamlines
According to Bernoulli’s equation for steady ideal fluid flow
A principle of conservation of mass holds
B velocity and pressure are inversely proportional
C total energy is constant throughout
D the energy is constant along a stream-line but may vary across streamlines
Pressure-enthalpy chart is useful in refrigeration. The change in internal energy of an ideal fluid used in ideal refrigeration cycle is
A Positive
B Negative
C Zero
D Infinity
An ideal plastic substance indicates no deformation, when stressed upto yield stress, but behaves like a Newtonion fluid beyond yield stress. Which of the following is an ideal plastic?
A Sewage sludge
B Rubber latex
C Blood
D Sugar solution
The continuity equation is connected with
A Open channel/pipe flow
B Compressibility of fluids
C Conservation of mass
D Steady/unsteady flow

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