# Mcq on dimensional analysis

## In the mechanical Engineering fluid mechanics is crucial for the all Competitive exams, so let's learn about Concept of Mcq on dimensional analysis helps to modernization.So keeping these things in mind, Lets understand the topic of Mcq on dimensional analysis . (adsbygoogle = window.adsbygoogle || []).push({});

 Mcq on dimensional analysis

## Objective questions (Mcq) on dimensional analysis:-

1. Which of the following is a primary quantity.
a) Mass
b) Density
c) Speed
d) Volume

2. Speed is depending on the length and time.
A. True
B. False

3. Which is the use of dimensional analysis from following.
a) for checking the dimensional corrections.
b) To Solving the equation dimensionally
c) To get the number of constants
d) To understand the dimensional equations

4. The unit of the dimensions does not depend on any other dimensional unit, this unit called as.....
a) Fundamental dimension
b) Dependents dimension
c) Independents dimension
d) Absolute dimensions

5. The fundamental dimensions are in dimensional analysis is...
A. 5
B. 6
C. 7
D. 8

6. The dimensionless quantity of the following is....
a) Mass
b) Weight
c) Specific weight
d) Reynold’s number

7. In SI system there are seven (7) fundamental dimensions.
A. True
B. False

8. The Reynolds number used to define the flow of fluids.
A. True
B. False

9. The mass is a primary quantity in dimensional analysis.
A. True
B. False

10. The term density is depending on mass and volume.
A. True
B. False

11. The ratio of inertia force to elastic force in square root is called as....
a. Mach's Number
b. Cauchy's Number
c. Both (a) and (b)
d. None of the above

12. Dimensionless analysis is helps to convert the units of quantities from one (1) system to another system.
A. True
B. False

13. The temperature is a primary quantity in dimensional analysis.
A.True
B. False

14. Which of the following is the dimensions of force.
a. [M L T – 1 ]
b. [M L T – 2]
c. [M L  – 3 ]
d. [M L 2 ]

15. The time (T) is a primary quantity in dimensional analysis.
A.True
B. False

16. Which of the following is a dimensionless equation are used in dimensional analysis.
a. Reynold's equation
b. Euler's equation
c. Weber's equation
d. All of the above

17. The dimensional formula of coefficient of viscosity is [ML-1T -1]
A. True
B. False

18. The best method which gives relationship among the dimensionless group in Buckingham π theorem method.
A. True
B. False

19. The prototype is the full size machine.
A. True
B. False

20. The model is larger, smaller or even same size as the prototype.
A. True
B. False

21. The ratio of inertia force to the viscous force is called as.....
A. Reynold's number
B. Euler's number
C. Weber's number
D. None of the above

22. The similarities of motion is considered in kinematics similarity.
A. True
B. False

23. Catchy number is the square of a Mach number.
A. True
B. False

24. Inertia force to the surface tension force is called as.....
A. Reynold's number
B. Euler's number
C. Weber's number
D. None of the above

25. The reciprocal of Euler number is called as Newton number.
A. True
B. False

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

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