| 1. | The rise of liquid along the walls of a revolving cylinder as compared to depression at the center with respect to initial level is ? | |
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same
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more
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less
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more or less depending on speed
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Report Question| 2. | The most economical section of a rectangular channel for maximum discharge is obtained when its depth is equal to ? | |
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half the breadth
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twice the breadth
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same as the breadth
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three-fourth of the breadth
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| 3. | In case of a two dimensional flow the components of velocity are given by u+ax; v=by; the point where no motion occurs, is known as ? | |
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critical point
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neutral point
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stagnation point
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None of these
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| 4. | The head loss in case of hot water flow through a pipe compared to cold water flow will be ? | |
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same
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more
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less
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more or less depending on range of temperatures
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| 5. | Maximum efficiency of transmission of power through a pipe is ? | |
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0.25
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0.3333
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0.5
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0.6667
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| 6. | In the case of turbulent flow ? | |
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it occurs in open channel
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losses are proportional to square of velocity
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velocity at boundary is zero
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shear stresses are more compared to laminar flow
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| 7. | Hydraulic grade line for any flow system as compared to energy line is ? | |
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above
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below
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at same level
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may be below or above depending upon velocity of flow
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| 8. | For maximum discharge through a circular open channel, the ratio of depth of flow to diameter of channel should be ? | |
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0.7
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0.5
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0.65
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None of these
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| 9. | A triangular section in open channel flow will be most economical when the vertex angle at the triangle base point is ? | |
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30 degree
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50 degree
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20 degree
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None of these
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| 10. | The value of coefficient of velocity depends upon ? | |
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slope of orifice
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size of orifice
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head of liquid above orifice
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friction at the orifice surface
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