Search
.Management Sciences
Category: Fluid Mechanics
The equation of continuity holds good when the flow____________________?
A. is steady
B. is one dimensional
C. velocity is uniform at all the cross sections
D. all of the above
E. none of the above
Property of a fluid by which molecules of different kinds of fluids are attracted to each other is called________________?
A. adhesion
B. cohesion
C. viscosity
D. compressibility
E. surface tension
The centre of gravity of the volume of the liquid displaced by an immersed body is called ___________________?
A. centre of gravity
B. centre of pressure
C. metacentre
D. centre of buoyancy
E. centroid
The capillary rise at 20°C in a clean glass tube of 1 mm bore containing water is approximately____________________?
A. 1 mm
B. 5 mm
C. 10 mm
D. 20 mm
E. 30 mm
The units of kinematic viscosity are____________________?
A. metres2 per sec
B. kg sec/metre
C. newton-sec per metre
D. newton-sec per metre
E. none of the above
The flow in which each liquid particle has a definite path and their paths do not cross each other is called__________________?
A. one dimensional flow
B. uniform flow
C. steady flow
D. turbulent flow
E. streamline flow
For a floating body to be in equilibrium_____________________?
A. meta centre should be above e.g.
B. centre of buoyancy and e.g. must lie on same vertical plane
C. a righting couple should be formed
D. all of the above
E. none of the above
The total pressure force on a plane area is equal to the area multiplied by the intensity of pressure at the centriod, if___________________?
A. the area is horizontal
B. the area is vertical
C. the area is inclined
D. all of the above
E. none of the above
Gradually varied flow is__________________?
A. steady uniform
B. non-steady non-uniform
C. non-steady uniform
D. steady non-uniform
E. true one-dimensional
Recent Comments