Froude number is not a factor__________________?

Related Mcqs:

1. Froude number is the ratio of__________________?

   A. Shear stress to gravitational stress
   B. Drag stress to shear stress
   C. Inertial stress to shear stress
   D. Inertial stress to gravitational stress

2. In a free vortex, the_____________________?

   A. Velocity changes linearly with radial distance
   B. Flow is necessarily rotational
   C. Radial component of velocity is same everywhere
   D. Stream lines are not circular

3. Discharge in laminar flow through a pipe varies________________?

   A. As the square of the radius
   B. Inversely as the pressure drop
   C. Inversely as the viscosity
   D. As the square of the diameter

4. The ratio of the depth of flow to the diameter of the channel for maximum discharge in a circular channel in open channel flow is________________?

   A. 0.1
   B. 0.55
   C. 0.95
   D. 1.85

5. Toothpaste is a__________________?

   A. Bingham plastic
   B. Pseudo-plastic
   C. Newtonian liquid
   D. Dilatent

6. 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

7. For turbulent fluid flow in pipe, the expression for Prandtl one seventh power law is (where, r = pipe radius, x = distance) ?

   A. V/Vmax = (x/r)1/7
   B. V/Vmax = (r/x)1/7
   C. V/Vmax = (x.r)1/7
   D. None of these

8. The most serious disadvantage of an orificemeter is that________________?

   A. It is not very accurate
   B. It is very costly
   C. Most of the pressure drop is not recoverable
   D. It is not suitable for measuring gas flow

9. Pick out the correct statement?

   A. Human blood is a Newtonian fluid
   B. A Newtonian fluid obeys Newton’s law of cooling
   C. For a non-Newtonian fluid, a straight line passes through the origin in a plot between shear
   stress and shear gradient
   D. Thin lubricating oil is an example of a non-Newtonian fluid

10. Disc compensators are provided in large diameter fuel gas carrying pipelines to_________________?

    A. Keep the pipe in proper orientation
    B. Make the pipe joint leak-proof
    C. Account for contraction/expansion of pipe due to temperature changes of the surroundings
    D. Account for the pressure variation side the pipeline