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
Related Mcqs:
- Bernoulli’s equation accounts for the_____________________?
A. Various momentums
B. Various masses
C. Different forms of mechanical energy
D. None of these - The terminal velocity of a solid spherical particle falling through a stationary fluid mass in the Stoke’s law range is proportional to the_____________________?
A. Inverse of fluid viscosity
B. Square of particle size
C. Difference in the densities of the particle & fluid
D. All A., B. and C. - The most important factor, which determines the maximum height to which water can be lifted by a pump at standard temperature is the_____________________?
A. Barometric pressure
B. Speed of the impeller
C. Diameter of the impeller
D. Both B. and C. - A rectangular surface 3′ × 4′, has the lower 3 edge horizontal and 6′ below a free oil surface (sp. gr. 0.8). The surface inclination is 300 with the horizontal. The force on one side of the surface is (where, y = specific weight of water) ?
A. 39.6y
B. 48y
C. 49.2y
D. 58y - For the free settling of a spherical particle through a fluid, the slope of, CD-log NRe, plot is____________________?
A. 1
B. -1
C. 0.5
D. -0.5 - For motion of spherical particles in a stationary fluid, the drag co-efficient in hindered settling compared to that in free settling is _______________?
A. More
B. Less
C. Equal
D. More or less, depending on the type of particle - Drag co-efficient in hindered settling is _____________ that in free settling?
A. Less than
B. Equal to
C. Not necessarily greater than
D. Always greater than - Fluid flow at increasing rate through a diverging pipe is an example of ______________ flow?
A. Steady uniform
B. Non-steady uniform
C. Steady non-uniform
D. Non-steady non-uniform - Pick out the wrong statement pertaining to fluid flow ?
A. The ratio of average velocity to the maximum velocity for turbulent flow of Newtonian fluid
in circular pipes is 0.5
B. The Newtonian fluid velocity in a circular pipe flow is maximum at the centre of the pipe
C. Navier-Stokes equation is applicable to the analysis of viscous flows
D. Hagen-Poiseuille equation is applicable to the laminar flow of Newtonian fluids - Which of the following is a dimensionless parameter ?
A. Angular velocity
B. Specific weight
C. Kinematic viscosity
D. None of these
