Mechanical Engineering Questions And Answers :: Hydraulic And Fluid Machines: part8



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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