1.
In a two dimensional incompressible steady flow around an airfoil, the stream lines are 2 cm apart at a great distance from the airfoil, where the velocity is 30 m/sec. The velocity near the airfoil, where the stream lines are 1.5 cm apart, is
2.
According to the principle of buoyancy a body totally or partially immersed in a fluid will be lifted up by a force equal to
3.
The difference of pressure between the inside and outside of a liquid drop is
4.
Fluid is a substance that
5.
The line of action of the buoyant force acts through the
6.
A vertical rectangular plane surface is submerged in water such that its top and bottom surfaces are 1.5 m and 6.0 m res-pectively below the free surface. The position of center of pressure below the free surface will be at a distance of
7.
The region between the separation streamline and the boundary surface of the solid body is known as
8.
Steady flow occurs when
9.
The shear stress distribution for a fluid flowing in between the parallel plates, both at rest, is
10.
Thee horizontal component of buoyant force is