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
Related Mcqs:
- 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 - The momentum correction factor for the velocity distribution of laminar flow is____________________?
A. 1.3
B. 1.66
C. 2.5
D. None of these - In which type of fluid flow, the velocity of flow of fluid changes from point to point in the fluid at any instant ?
A. Rotational
B. Unsteady
C. Turbulent
D. Non-uniform - When the momentum of one fluid is used for moving another fluid, such a device is called a/an______________?
A. Jet pump
B. Blower
C. Acid egg
D. None of these - 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 - The kinetic energy correction factor for velocity distribution of laminar flow is_________________?
A. 0.5
B. 1.66
C. 1
D. 2 - The pressure drop per unit length of pipe incurred by a fluid ‘X’ flowing through pipe is Δp. If another fluid ‘Y’ having both the specific gravity & density just double of that of fluid ‘X’, flows through the same pipe at the same flow rate/average velocity, then the pressure drop in this case will be__________________?
A. Δp
B. 2Δp
C. Δp2
D. Δp/2 - In case of laminar flow of fluid through a circular pipe, the__________________?
A. Shear stress over the cross-section is proportional to the distance from the surface of the pipe
B. Surface of velocity distribution is a paraboloid of revolution, whose volume equals half the
volume of circumscribing cylinder
C. Velocity profile varies hyperbolically and the shear stress remains constant over the crosssection
D. Average flow occurs at a radial distance of 0.5 r from the centre of the pipe (r = pipe radius) - The rate of change of moment of momentum represents the ______________ by the fluid?
A. Torque applied
B. Force exerted
C. Work done
D. Power developed - Navier-Stokes equation is useful in the analysis of _____________ fluid flow problems?
A. Non-viscous
B. Viscous
C. Turbulent
D. Rotational
