Related Mcqs:

1. The equation relating friction factor to Reynold number, f-0.5 = 4 loge (NRe/√f)-0.4, is called the _____________ equation?

   A. Nikuradse
   B. Von-Karman
   C. Blasius
   D. Colebrook

2. Colebrook equation for friction factor in turbulent flow is given by, f-0.5 = -4 loge [(ε/D) + (1.26/NRe √F). It reduces to Nikuradse equation for a value of (ϵ/D) equal to __________________?

   A. 0
   B. 1
   C. ∞
   D. 0.5

3. Bernoulli’s equation for fluid flow is derived following certain assumptions. Out of the assumptions listed below, which set of assumptions is used in derivation of Bernoulli’s equation? A. Fluid flow is frictionless & irrotational. B. Fluid flow is steady. C. Fluid flow is uniform & turbulent. D. Fluid is compressible. E. Fluid is incompressible ?

   A. A, C, D
   B. B, D, E
   C. A, B, E
   D. A, D, E

4. The energy loss over a length of pipeline according to Darcy-Weisbach equation for pipe flow is _______________ the mean velocity of flow?

   A. Directly proportional to
   B. Directly proportional to square of
   C. Inversely proportional to
   D. Inversely proportional to square of

5. Stoke’s equation is valid in the Reynolds number range__________________?

   A. 0.01 to 0.1
   B. 0.1 to 2
   C. 2 to 10
   D. 10 to 100

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. Bernoulli’s equation for steady, frictionless, continuous flow states that the ______________ at all sections is same?

   A. Total pressure
   B. Total energy
   C. Velocity head
   D. None of these

8. The equation f-0.5 = 4.07 loge (NRe √f)-0.6 is called the ____________?

   A. Colebrook formula
   B. Von-Karman equation
   C. Fanning equation
   D. None of these

9. Bernoulli‟s equation does not apply to the functioning of a/an__________________?

   A. Venturimeter
   B. Orificemeter
   C. pitot tube
   D. None of these

10. For the laminar flow of a fluid in a circular pipe of radius R, the Hagen-Poisseule equation predicts the volumetric flow rate to be proportional to____________________?

    A. R
    B. R2
    C. R4
    D. R0.5