# Home / Mechanical Engineering / Hydraulics and Fluid Mechanics in ME :: section-1

### Mechanical Engineering :: Hydraulics and Fluid Mechanics in ME

1. A flow in which the quantity of liquid flowing per second is constant, is called __________ flow.

2.  A.  Steady B.  Streamline C.  Turbulent D.  Unsteady   3. The Cipoletti weir is a __________ weir.

4.  A.  Rectangular B.  Triangular C.  Trapezoidal D.  Circular   5. A hydraulic ram is a device used to

6.  A.  Store the energy of water B.  Increase the pressure of water C.  To lift water from deep wells D.  To lift small quantity of water to a greater height when a large quantity of water is available at a smaller height   7. According to the principle of buoyancy a body totally or partially immersed in a fluid will be lifted up by a force equal to

8.  A.  The weight of the body B.  More than the weight of the body C.  Less than the weight of the body D.  Weight of the fluid displaced by the body   9. The tangential velocity of the water element having a free vortex is

10.  A.  Directly proportional to its distance from the centre B.  Inversely proportional to its distance from the centre C.  Directly proportional to its (distance)2 from the centre D.  Inversely proportional to its (distance)2 from the centre   11. The difference of pressure between the inside and outside of a liquid drop is

12.  A.  p = T × r B.  p = T/r C.  p = T/2r D.  p = 2T/r   13. When a body, floating in a liquid, is given a small angular displacement, it starts oscillating about a point known as

14.  A.  Centre of pressure B.  Centre of gravity C.  Centre of buoyancy D.  Metacentre   15. Fluid is a substance that

16.  A.  Cannot be subjected to shear forces B.  Always expands until it fills any container C.  Has the same shear stress at a point regardless of its motion D.  Cannot remain at rest under action of any shear force   17. The line of action of the buoyant force acts through the

18.  A.  Centroid of the volume of fluid vertically above the body B.  Centre of the volume of floating body C.  Center of gravity of any submerged body D.  Centroid of the displaced volume of fluid   19. If the ratios of all the corresponding linear dimensions are equal, then the model and the prototype are said to have

20.  A.  Geometric similarity B.  Kinematic similarity C.  Dynamic similarity D.  None of these   