| 1. | The magnitude of water hammer depends upon the ? | |
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elastic properties of the pipe material
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elastic properties of the liquid flowing through the pipe
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speed at which the valve is closed
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all of the above
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Report Question| 2. | A flow through a long pipe at constant rate is called ? | |
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steady uniform flow
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steady non-uniform flow
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unsteady uniform flow
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unsteady non-uniform flow
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| 3. | In a free nappe ? | |
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the pressure below the nappe is atmospheric
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the pressure below the nappe is negative
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the pressure above the nappe is atmospheric
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the pressure above the nappe is negative
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| 4. | For a perfect incompressible liquid, flowing in a continuous stream, the total energy of a particle remains the same, while the particle moves from one point to another. This statement is called ? | |
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continuity equation
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Bernoulli's equation
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Pascal's law
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Archimede's principle
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| 5. | In a short cylindrical external mouthpiece, the vena contracta occurs at a distance..........the diameter of the orifice from the outlet of orifice ? | |
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equal to
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one-fourth
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one-third
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one-half
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| 6. | An opening in the side of a tank or vessel such that the liquid surface with the tank is below the top edge of the opening, is called ? | |
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weir
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notch
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orifice
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none of these
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| 7. | An error of 1% in measuring head over the crest of the notch (H) will produce an error of ...... in discharge over a triangular notch ? | |
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1%
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1.5%
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2%
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2.5%
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| 8. | An internal mouthpiece is said to be running free if the length of the mouthpiece is diameter of the orifice ? | |
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less than twice
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more than twice
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less than three times
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more than three times
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| 9. | In an internal mouthpiece, if the jet after contraction does not touch the sides of the mouth piece, then the mouthpiece is said to be ? | |
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running full
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running free
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partially running full
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partially running free
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| 10. | When the flow in an open channel is gradually varied, the flow is said to be ? | |
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steady uniform flow
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steady non-uniform flow
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unsteady uniform flow
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unsteady non-uniform flow
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