Mechanical Engineering : Hydraulic And Fluid Machines QUESTIONS AND ANSWERS :: part8 : 16 to 20
Following Mechanical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
16.Uniform flow occurs when |
| the direction and magnitude of the velocity at all points are identical |
| the velocity of successive fluid pai-ticles, at any point, is the same at suc�cessive periods of time |
| the magnitude and direction of the velocity do not change from point to point in the fluid |
| the fluid particles move in plane or parallel planes and the streamline pat-terns are identical in each plsr.e |
| velocity, depth, pressure, etc. change from point to point in the fluid flow. |
17.In a forced vortex, the velocity of flow everywhere within the fluid is |
| maximum |
| minimum |
| zero |
| non-zero finite |
| unpredictable. |
18.All the terms of energy in Bernoulli's equation have dimension of |
| energy |
| work |
| mass |
| length |
| time. |
19.A streamline is defined as the line |
| parallel to central axis flow |
| parallel to outer surface of pipe |
| of equal yelocity in a flow |
| along which the pressure drop is uniform |
| which occurs in all flows. |
20.The region between the separation streamline and the boundary surface of the solid body is known as |
| wake |
| drag |
| lift |
| boundary layer |
| aerofoil section. |
More Hydraulic And Fluid Machines QUESTIONS AND ANSWERS available in next pages
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