The component of acceleration resulting due to unsteady nature of flow is called ____________ acceleration?

Related Mcqs:

1. In case of unsteady fluid flow, conditions & flow pattern change with the passage of time at a position in a flow situation. Which of the following is an example of unsteady flow ?

   A. Discharge of water by a centrifugal pump being run at a constant rpm
   B. Water flow in the suction and discharge pipe of a reciprocating pump
   C. Water discharge from a vertical vessel in which constant level is maintained
   D. Low velocity flow of a highly viscous liquid through a hydraulically smooth pipe

2. Unsteady non-uniform flow is represented by flow through a/an_________________?

   A. Long pipe at constant rate
   B. Long pipe at decreasing rate
   C. Expanding tube at increasing rate
   D. Expanding tube at constant rate

3. Unsteady uniform flow is represented by flow through a/an_________________?

   A. Long pipe at constant rate
   B. Long pipe at decreasing rate
   C. Expanding tube at increasing rate
   D. Expanding tube at constant rate

4. For one dimensional flow of an incompressible fluid in unsteady state in x-direction, the continuity equation is given by_______________?

   A. ∂u/∂x = 0
   B. ∂(ρu)/∂x = 0
   C. (∂u/∂x) = – (∂ρ/∂t)
   D. ∂ρ/∂t = 0

5. 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

6. What causes convective acceleration in fluid flow ?

   A. Steep slope in flow
   B. Unsteady nature of flow
   C. Non-uniformity of flow
   D. Turbulence in flow

7. The energy loss in flow through Venturimeter is less than that through flow nozzle, because in case of a flow nozzle, the ?

   A. Length is shorter
   B. Throat diameter is more
   C. Sudden expansion of flow in the downstream occurs
   D. Distance between the throat and the inlet is more

8. 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

9. A fluid which has a linear relationship between the magnitude of applied shear-stress and the resulting rate of deformation is called a/an _____________ fluid?

   A. Newtonian
   B. Non-Newtonian
   C. Ideal
   D. Incompressible

10. ____________ flow means the flow of incompressible fluid with no shear ?

    A. Potential
    B. Streamline
    C. Creep
    D. Boundary layer