# 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

## Objective questions MCQ on laminar flow:-

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Here we concluding, If you have any queries about the topic of Mcq on laminar flow,  then feel free to comment below.

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