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 ?

Related Mcqs:

The location of centre of pressure, which defines the point of application of the total pressure force on the surface, can be calculated by applying the principle of moments according to which “sum of the moment of the resultant force about an axis is equal to the sum of the components about the same axis”. The centre of pressure of a rectangular surface (of width ‘w’) immersed vertically in a static mass of fluid is at a depth of (where, y = depth of the liquid) ?

A. 1/(y/3) B. 2y/3 C. 1/(y/4) D. 3y/4...

The boundary layer is that part of a moving fluid, in which the fluid velocity is_________________?

A. Affected by the fluid flow pressure B. Constant C. Affected by the presence of a solid boundary D. All A., B. and C....

Pick out the wrong statement?

A. The eddy viscosity is a function of the type of turbulence involved B. The eddy viscosity is a fluid property C. The viscosity of gas increases with increase in temperature D. The viscosity of a liquid increases with decrease in temperature...

Transition length for turbulent flow in smooth pipe is equal to _____________ times the pipe diameter?

A. 0.5 B. 5 C. 50 D. 500...

The distribution of shear stress in a stream of fluid in a circular tube is_____________________?

A. Linear with radius for turbulent flow only B. Linear with radius for laminar flow only C. Linear with radius for both laminar & turbulent flow D. Parabolic with radius for both laminar & turbulent flow...