The mechanical Engineering in that the fluid mechanics is vital role for the all Competitive exams, so let's learn about Concept of Mcq on Turbulent flow to clear the concepts.So keeping these things, Lets understand the concept of Mcq on Turbulent flow.
A. True
B. False
Answer:- A
2. The flow of Turbulent is always highly irregular.
A. True
B. False
Answer:- A
3. The higher skin friction are produced in turbulent flow.
A. True
B. False
Answer:- A
4. The overall drag force is less for turbulent flow.
A. True
B. False
Answer:- A
5. The mathematical equation is used to represent the randomness of the turbulent flow is....
a) RANSb) Reynolds number
c) Parallelogram
d) DNS
Answer:- B
6. Addition of Steady velocity and Fluctuating component of velocity for Reynold's decomposition for Turbulent flow.
A. True
B. False
Answer:- A
7. Eddies are in the turbulent flows give result in...
a) high diffusion coefficientsb) low diffusion coefficients
c) high value of the sourced
d) low value source term
Answer:- A
8. Vortex stretching is method to increase in the component of vorticity in the stretching direction.
A. True
B. False
Answer:- A
9. For the larger eddie in Turbulent flow.....
a) High viscosity and linear motions conserved
b) Low viscosity conserved
c) High viscosity conserved
d) Low viscosity and angular momentum to be conserved
b) Low viscosity conserved
c) High viscosity conserved
d) Low viscosity and angular momentum to be conserved
Answer:- D
10. The surface is perturb the boundary layer and promoting the turbulence.
a) Trueb) False
Answer:- A
11. The flow over a golf ball is considered a stationary.
a) Trueb) False
Answer:- A
12. Energy content peaks at low the wavenumber.
a) True
b) False
b) False
Answer:- A
13. Which of the following is the cause of turbulence.
A. Shear flow
B. Sudden discontinuity
C. Change in velocity distribution
D. All of the above
Answer:- D
14. Shear flow causes the turbulence in fluid mechanics.
a) True
b) False
b) False
Answer:- A
15. Shear stress in turbulent flow is....
A. Laminar shear stress - turbulent shear stress
B. Laminar shear stress × turbulent shear stress
C. Laminar shear stress + turbulent shear stress
D. Laminar shear stress ÷ turbulent shear stress
Answer:- C
16. The eddy viscosity are dependent on turbulence condition of flow.
A. True
B. False
Answer:- A
17. Which of the following is true about the example of turbulent flow.
a) Smoking rises from cigaretteb) Flow on airfoil
c) Laminar flow on pipe
d) Turbulent flow on the airfoil
Answer:- A
18. The turbulence is predicted by the Reynolds number.
A. True
B. False
Answer:- A
19. Which of the following is true about the Large eddies...
a) are two-dimensional and isotropicb) are two-dimensional and isotropic
c) are three-dimensional and anisotropic
d) are two-dimensional and anisotropic
Answer:- C
20. The Smaller eddies are stretched strongly by large eddies.
A. True
B. False
Answer:- A
21. The turbulence causes by the high kinetic energy
a) Trueb) False
Answer:- A
22. The effort of laminar flow is to increase the drag and reduced the lift.
a) Trueb) False
Answer:- A
23. For an Hagen-Poiseuille equation flow is laminar.
a) True
b) False
b) False
Answer:- A
24. The larger the Reynolds number indicate the flow is turbulent.
A. True
B. False
Answer:- A
25. The velocity profile is a logarithmic for the turbulent zone.
A. True
B. False
Answer:- A
26. At the wall the value of shear stress is maximum.
A. True
B. False
Answer:- A
27. The value of Reynolds number for turbulent flow when flow is flowing through pipe.
A. 2000
B. 2000 to 4000
C. Above 4000
D. None of the above
Answer:- C
28. The value of Reynolds number for transition flow when flow is flowing through pipe.
A. 2000
B. 2000 to 4000
C. Above 4000
D. None of the above
Answer:- B
Here we concluding, If you have any queries about the topic of Mcq on Turbulent flow, then feel free to comment below.
Related articles:
0 comments:
If you have any doubt, please let me know