For an incompressible fluid, the bulk modulus of elasticity is____________________?

Related Mcqs:

1. 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

2. The unit of bulk modulus of elasticity for a liquid in S.I. unit is____________________?

   A. N
   B. N/m
   C. N/m2
   D. N/m3

3. The bulk modulus of elasticity of a liquid__________________?

   A. Is zero for incompressible liquid
   B. Decreases with pressure
   C. Is independent of temperature & pressure
   D. Increases with pressure

4. In an incompressible fluid, the density is____________________?

   A. Greatly affected by moderate changes in pressure
   B. Greatly affected only by moderate changes in temperature
   C. Not affected with moderate change in temperature & pressure
   D. Sensible to changes in both temperature & pressure

5. In an incompressible flow of fluid, the fluid ________________?

   A. Temperature remains constant
   B. Compressibility is greater than zero
   C. Density does not change with pressure & temperature
   D. Is frictionless

6. For turbulent flow of an incompressible fluid through a pipe, the flow rate „Q‟ is proportional to (Δ P)n, where ΔP is the pressure drop. The value of exponent ‘n’ is_________________?

   A. 1
   B. 0
   C. < 1
   D. > 1

7. Where does the maximum stress occur in case of laminar flow of incompressible fluid in a closed conduit of diameter ‘d’ ?

   A. At the centre
   B. At d/4 from the wall
   C. At the wall
   D. At d/8 from the wall

8. Upto what value of ‘Mach number’, a fluid may be considered as incompressible ?

   A. 0.03
   B. 0.3
   C. 3
   D. 10

9. Select the wrong statement pertaining to flow of an incompressible fluid through a Venturimeter ?

   A. For frictionless flow, the fluid pressure entering the venturi meter will be exactly equal to that
   leaving the Venturimeter
   B. Discharge of fluid through a Venturimeter depends upon the gage difference irrespective of
   the orientation of Venturimeter
   C. Venturimeter occupies less space than an orificemeter
   D. Venturimeter incurs less power loss compared to an equivalent orificemeter

10. 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