# The fluid forces considered in the Navier Stokes equation is

1.  Gravity, pressure and viscous

2.  Gravity, pressure and turbulent

3.  Pressure, viscous and turbulent

4.  Gravity, viscous and turbulent

4

Gravity, pressure and viscous

Explanation :
No Explanation available for this question

# A streamline is defined as the line

1.  Parallel to central axis flow

2.  Parallel to outer surface to pipe

3.  Of equal velocity in a flow

4.  Along which the pressure drop is uniform

4

Of equal velocity in a flow

Explanation :
No Explanation available for this question

# For an irrotational flow the equation  ∂2/∂x2+∂2?/∂y2 is known as

1.  Bernoulis equation

2.  Cauchy Riemann’s equation

3.  Euler’s equation

4.  Laplace equation

4

Laplace equation

Explanation :
No Explanation available for this question

# Hydraulic grade line as compared to the centre line of conduct

1.  Should always above

2.  Should always below

3.  Should always the parallel

4.  May be above or below

4

Should always above

Explanation :
No Explanation available for this question

# Continuity equation for an incompressible fluid is

1.  A1V1=A2V2

2.  ρ1A1V1=ρ2A2V2

3.  A1V1/ ρ1=A2V2/ ρ2

4.    ρ1A1 /V1=ρ2A2 /V2 where V= velocity, ρ=density and A=area

4

A1V1=A2V2

Explanation :
No Explanation available for this question

# The rate of change of linear momentum is equals to

1.  Active force

2.  Reactive force

3.  Torque

4.  Work done

4

Active force

Explanation :
No Explanation available for this question

# The rate of change of moment of momentum represents the

1.  Force extremely by fluid

2.  Torque applied by the fluid

3.  Workdone by the fluid

4.  Power developed by the fluid

4

Torque applied by the fluid

Explanation :
No Explanation available for this question

# Navier -stokes equation is useful in the analysis of

1.  Viscous flow

2.  Non viscous flow

3.  Rotational flow

4.  Turbulent flow

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Viscous flow

Explanation :
No Explanation available for this question

# Bernoulli’s equation cannot be applied when the flow is

1.  Rotational

2.  Turbulent

4.  All of the above

4

All of the above

Explanation :
No Explanation available for this question

# Euler’s equation in the differential form of motion of liquids isgiven by

1.  (dp/ρ)-gdz+vdv=0

2.  (dp/ρ)+gdz- vdv=0

3.  (dp/ρ)+gdz+vdv=0

4.  (dp/ρ)+g dz +v dv=0

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