Mach number is defined as the ratio of the local flow velocity to the sonic velocity in the fluid. For what value of Mach number, the gases are considered incompressible ?

Related Mcqs:

Fluid flow through a packed bed is represented by the ______________ equation?

A. Fanning’s B. Ergun’s C. Hagen-Poiseuille’s D. None of these...

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....

One poise (unit of absolute/dynamic viscosity) is equivalent to one_____________________?

A. gm/cm2. sec B. gm/cm. sec C. cm2/sec D. m2/sec...

The continuity equation of fluid mechanics utilises the principle of conservation of _________________?

A. Momentum B. Mass C. Energy D. Both B. & C....

The effect of solid boundary on the fluid flow is confined to the boundary layer, except for fluids ?

A. Having high viscosities B. Moving at low velocities C. Both A. & B. D. Neither A. nor B....