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.Management Sciences
Category: Fluid Mechanics
The bulk modulus of elasticity___________________?
A. has the dimensions of 1/pressure
B. increases with pressure
C. is large when fluid is more compressible
D. is independent of pressure and viscosity
E. is directly proportional to flow
The point in the immersed body through which the resultant pressure of the liquid may be taken to act is known as_________________?
A. meta center
B. center of pressure
C. center of buoyancy
D. center of gravity
E. none of the above
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
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