Mechanical Engineering : Hydraulic And Fluid Machines QUESTIONS AND ANSWERS :: part8 : 6 to 10
Following Mechanical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
6.Mach number is significant in |
| supersonics, as with projectiles 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 force, and wave making effects, as with ship's hulls |
| all of fhe above |
| none of the above. |
7.The fluid forces considered in the Navier Stokes equation are |
| gravity, pressure and viscous |
| gravity, pressure and turbulent |
| pressure, viscous and turbulent |
| gravity, viscous and turbulent |
| none of the above. |
8.For hypersonic flow, the Mach number is |
| unity |
| greater than unity |
| greater than 2 |
| greater than 4 |
| greater than 10. |
9.A piece of wood having weight 5 kg floats in water with 60% of its volume under the liquid. The specific gravity of wood is |
| 0. |
| 0.6 |
| 0.4 |
| 0.3 |
| none of the above. |
10.Froude 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 |
More Hydraulic And Fluid Machines QUESTIONS AND ANSWERS available in next pages
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