The momentum correction factor for the velocity distribution of laminar flow is____________________?

Related Mcqs:

1. The kinetic energy correction factor for velocity distribution of laminar flow is_________________?

   A. 0.5
   B. 1.66
   C. 1
   D. 2

2. Momentum correction factor used in fluid flow problems accounts for the__________________?

   A. Change in direction of flow
   B. Change in total energy
   C. Change in pressure
   D. Non uniform direction of velocities at inlet & outlet sections

3. The velocity profile exhibited by laminar flow of Newtonian fluids is such that the velocity distribution w.r.t. radius of the circular pipe is a/an ______________ with the apex at the centre line of the pipe?

   A. Hyperbola
   B. Parabola
   C. Semi-circle
   D. Semi-ellipse

4. Applying a pressure drop across a capillary results in a volumetric flow rate ‘Q’ under laminar flow conditions. The flow rate for the same pressure drop, in a capillary of the same length but half the radius is____________________?

   A. Q/2
   B. Q/4
   C. Q/8
   D. Q/16

5. Fanning friction factor for laminar flow of fluid in a circular pipe is____________________?

   A. Not a function of the roughness of pipe wall
   B. Inversely proportional to Reynolds number
   C. Both A. & B.
   D. Neither A. nor B.

6. Momentum transfer in laminar flow of fluids results due to the_________________?

   A. Viscosity
   B. Density
   C. Velocity gradient
   D. None of these

7. The ratio of average fluid velocity to the maximum velocity in case of laminar flow of a Newtonian fluid in a circular pipe is_____________________?

   A. 0.5
   B. 1
   C. 2
   D. 0.66

8. For laminar flow of Newtonian fluid in a circular pipe, the velocity distribution is a function of the distance ‘d’ measured from the centre line of the pipe, and it follows a ______________ relationship?

   A. Logarithmic
   B. Parabolic
   C. Hyperbolic
   D. Linear

9. For laminar flow of a shear thinning liquid in a pipe, if the volumetric flow rate is doubled, the pressure gradient will increase by a factor of_________________?

   A. 2
   B. 2
   D. 1/2

10. Cd, Cc and Cv are related (for flow through an orifice) as (where, Cd = discharge co-efficient, Cc = co-efficient of contraction = (area of jet at vena-contracta/area of opening), Cv = co-efficient of velocity = (actual velocity at vena-contracta/theoretical velocity)?

    A. Cd = Cc/Cv
    B. Cd = Cc.Cv
    C. Cd = Cv/ Cc
    D. None of these