| 1. | The point in the immersed body through which the resultant pressure of the liquid may be taken to act is known as ? | |
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meta centre
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centre of pressure
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centre of buoyancy
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centre of gravity
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Report Question| 2. | The centre of gravity of the volume of the liquid displaced by an immersed body is called ? | |
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meta-centre
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centre of pressure
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centre of buoyancy
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centre of gravity
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| 3. | Rain drops are spherical because of ? | |
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viscosity
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air resistance
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surface tension forces
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atmospheric pressure
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| 4. | The continuity equation is connected with ? | |
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viscous/unviscous fluids
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compressibility of fluids
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conservation of mass
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steady/unsteady flow
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| 5. | Newton’s law of viscosity is a relationship between ? | |
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shear stress and the rate of angular distortion
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shear stress and viscosity
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shear stress, velocity and viscosity
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pressure, velocity and viscosity
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| 6. | During the flow, the separation occurs when ? | |
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the velocity of sound is reached
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the boundary layer comes to rest
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the cross-section of a channel is reduced
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the pressure reaches a minimum
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| 7. | The continuity equation ? | |
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requires that Newton’s second law of motion be satisfied at every point in fluid
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relates the momentum per unit volume for two points on a streamline
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expresses the relation between energy and work
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relates mass rate of flow along a streamline
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| 8. | For a laminar flow ? | |
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flow occurs in a zig zag way
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Reynolds number lies between 2000 and to 3000 for pipes
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Newton’s law of viscosity is of importance
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None of these
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| 9. | The path of jet discharging from bottom opening in a tank full of water will be ? | |
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horizontal straight line
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linear downward
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approximately hyperbola
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parabola with its vertex at the opening
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| 10. | An air vessel is provided at the summit in the syphon in order to ? | |
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to maintain pressure difference
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to increase discharge
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to increase velocity
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None of these
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