A. pressure in pipes, channels etc.
B. atmospheric pressure
C. very low pressure
D. difference of pressure between two points
E. velocity in pipes
Related Mcqs:
- In order that flow takes place between two points in a pipeline, the differential pressure between these points must be more than_______________?
A. frictional force
B. viscosity
C. surface friction
D. all of the above
E. none of the above - The tendency of a liquid surface to contract is due to the following property_____________?
A. cohesion
B. adhesion
C. viscosity
D. surface tension
E. elasticity - A liquid would wet the solid, if adhesion forces as compared to cohesion forces are________________?
A. less
B. more
C. equal
D. less at low temperature and more at high temperature
E. there is no such criterion - Operation of McLeod gauge used for low pressure measurement is based on the principle of_________________?
A. gas law
B. Boyle’s law
C. Charle’s law
D. Pascal’s law
E. McLeod’s law - 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 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 - At the center line of a pipe flowing under pressure where the velocity gradient is zero, the shear stress will be_________________?
A. minimum
B. maximum
C. zero
D. negative value
E. could be any value - Gradually varied flow is__________________?
A. steady uniform
B. non-steady non-uniform
C. non-steady uniform
D. steady non-uniform
E. true one-dimensional - A body floats in stable equilibrium ____________________?
A. when its meatcentric height is zero
B. when the metancentre is above e.g.
C. when its e.g. is below it’s center of buoyancy
D. metacentre has nothing to do with position of e.g. for determining stability
E. none of the above - Choose the correct relationship ?
A. specific gravity = gravity x density
B. dynamicviscosity = kinematicviscosity x density
C. gravity = specific gravity x density
D. kinematicviscosity = dynamicviscosity x density
E. hydrostaticforce = surface tension x gravity
