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Mechanical Engineering Objective Questions { Hydraulic Fluid Mechanics }



71. To avoid an interruption in the flow of a syphon, an air vessel is provided
A.At the inlet
B.At the outlet
C.At the summit
D.Ay nay point between inlet and outlet
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72. The vapour pressure over the concave surface is
A.Less than the vapour pressure over the plane surface
B.Equal to the vapour pressure over the plane surface
C.Greater than the vapour pressure over the plane surface
D.Zero
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73. The peoperty by virtue of which a liquid opposes relative motion between its different layers is called
A.Surface tension
B.Co-efficient of viscosity
C.Viscosity
D.Osmosis
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74. The process of diffusion of one liquid into the other through a semi-permeable membrane is called
A.Viscosity
B.Osmosis
C.Surface tension
D.Cohesion
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75. The continuity equation is connected with
A.Viscous/unviscous fluids
B.Compressibility of fluids
C.Conservation of mass
D.Steady/unsteady flow
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76. The rise or depression of liquid in a tube due to surface tension with increase in size of tube will
A.Increase
B.Remain unaffected
C.May increase or decrease depending on the characteristics of liquid
D.Decrease
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77. Liquids transmit pressure equally in all the directions. This is according to
A.Boyle's law
B.Archimedes principle
C.Pascal's law
D.Newton's formula
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