Mcq on laminar flow

The mechanical Engineering fluid mechanics is vital role for the all Competitive exams, so let's learn about Concept of Mcq on laminar flow  to clear the concepts.
So keeping these things in mind, Lets understand the topic of Mcq on laminar flow.

Mcq on laminar flow
Mcq on laminar flow

Objective questions MCQ on laminar flow:-

1. When the fluid flow layer parallel to each other the laminar flow occurs.
A. True
B. False

Answer:- A

2. The laminar flow is smooth, than turbulent flow.
A. True
B. False

Answer:- A

3. The flow of laminar occurs when the velocity of fluid is slow.
A. True
B. False

Answer:- A

4. The turbulent flow is a rough than the laminar flow....
A. True
B. False

Answer:- A
5. The value of critical Reynolds number for A pipe in internal flow is...
A. 1
B. 500
C. 1000
D. 2000

Answer:- D

6. The Reynolds number describe the fluid flow.
A. True
B. False

Answer:- A

7. The value at which the flow can be considered to be a laminar called as critical Reynold's number.
A. True
B. False

Answer:- A

7. The value of critical Reynolds number for an open channel flow is...
A. 1
B. 500
C. 1000
D. 2000

Answer:- B

8. The value of critical Reynolds number for the flow around a sphere is...
A. 1
B. 500
C. 1000
D. 2000

Answer:- A

9. The value of critical Reynolds number for A flow between plates is...
A. 1
B. 500
C. 1000
D. 2000

Answer:- C

10. The laminar flow use in the smooth flow of a viscous liquid through a tube.
A. True
B. False

Answer:- A

11. The Reynolds number below its critical value.
A. True
B. False

Answer:- A
12. The velocity distribution is a parabolic for laminar flow through circular pipe.
A. True
B. False

Answer:- A

13. The mean velocity of occurs at a distance of 0.707 R from centre of circular pipe.
A. True
B. False

Answer:- A

14. The mean velocity is........ of maximum velocity.
A. Double
B. Half
C. Triple
D. Equal

Answer:- B
15. The maximum velocity is.......... of the mean velocity.
A. Double
B. Half
C. Triple
D. Equal

Answer:- A

16. The Reynold's number defining the inertial force to the viscous force.
A. True
B. False

Answer:- A

17. If the value of the velocity of flow increases the Reynolds number will be....
A. Double
B. Half
C. Increase
D. Decrease

Answer:- C

18. 17. If the value of the viscous of flow increases the Reynolds number will be....
A. Double
B. Half
C. Increase
D. Decrease

Answer:- D

19. The Reynolds number is a function of...
A. Velocity
B. Discharge
C. Fluid property
D. All of the above

Answer:- D

20. The Reynolds number is directly proportional to the velocity of the fluid.
A. True
B. False

Answer:- A
21. The friction factor in laminar flow is a function of Reynolds number.
A. True
B. False

Answer:- A

22. For the flow between two stationary plates the average velocity is 2/3 of maximum velocity.
A. True
B. False

Answer:- A

23. In laminar flow through a circular pipe the head loss varies directly as the discharge.
A. True
B. False

Answer:- A

24. In laminar flow the pressure drop varies directly proportional to the mean velocity.
A. True
B. False

Answer:- A
25. The minimum value of friction factor that can occur in laminar flow when flowing in a circular pipe is...
A. 0.024
B. 0.025
C. 0.032
D. 0.023

Answer:- C


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