Mechanical Engineering : Hydraulic And Fluid Machines QUESTIONS AND ANSWERS :: part8 : 11 to 15
Following Mechanical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
11.A large Roynold number is indication of |
| smooth and streamline flow |
| laminar flow |
| steady flow |
| turbulent flow |
| highly turbulent flow. |
12.Reynolds number is significant in |
| supersonics, as with projectile and jet propulsion |
| full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc. |
| simultaneous motion through two fluids where there is a surface of dis-continuity, gravity forces, and wave making effect, as with ship's hulls |
| all of the above |
| none of the above. |
13.In a free vortex motion, the radial component of velocity everywhere is |
| maximum |
| minimum |
| zero |
| non-zero and finite |
| unpredictable. |
14.Two dimensional flow occurs when |
| the direction and magnitude of the velocity at all points are identical |
| the velocity of successive fluid par-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 plane |
| velocity, depth, pressure, etc. change from point to point in the fluid flow. |
15.Pitot tube is used for measurement of |
| pressure |
| flow |
| velocity |
| dsscharge |
| viscosity. |
More Hydraulic And Fluid Machines QUESTIONS AND ANSWERS available in next pages
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