| 1. | Uniform flow occurs when ? | |
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at every point the velocity vector is identical, in magnitude and direction, for any given instant
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the flow is steady
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discharge through a pipe is constant
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conditions do not change with time at any point
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Report Question| 2. | Fire hose nozzle is generally made of ? | |
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divergent shape
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convergent shape
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convergent-divergent shape
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cylindrical shape
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| 3. | Profile drag is equal to ? | |
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friction drag – pressure drag
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pressure drag – friction drag
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pressure drag + friction drag
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pressure drag x friction drag
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| 4. | Highest efficiency is obtained with following channel section ? | |
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circular
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triangular
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rectangular
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trapezoidal
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| 5. | Gate is an opening ? | |
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with closed perimeter and of regular form through which water flows
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with prolonged sides having length of 2 – 3 diameters of opening in thick wall
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with partially full flow
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in hydraulic structure with regulation provision
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| 6. | The vertical component of pressure force on a submerged curved surface is equal to ? | |
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weight of liquid vertically above the curved surface and extending upon the free surface
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the force on a vertical projection of the curved surface
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the product of pressure at centroid and surface area
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horizontal component
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| 7. | The rise of liquid along the walls of a revolving cylinder above the initial level ? | |
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is greater than the depression of the liquid at the axis of rotation
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is lesser than the depression of the liquid at the axis of rotation
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is the same as the depression of the liquid at the axis of rotation
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it depends upon the magnitude of speed
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| 8. | The component of the force of the fluid on the body (which is generally inclined to the direction of motion of the body) parallel to the direction of motion is called ? | |
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drag
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lift
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wake
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propelling force
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| 9. | The latent heat of steam at pressures greater than atmospheric in comparison to latent heat at atmospheric pressure is ? | |
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less
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more
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equal
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may be less or more depending on temperature
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| 10. | Sublimation region is the region where ? | |
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solid and vapour phases are in equilibrium
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solid and liquid phases are in equilibrium
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liquid and vapour phases are in equilibrium
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solid, liquid and vapour phases are in equilibrium
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