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JSSC JE (ME) :QUIZ-19 || Dimensional Analysis

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Question 1

Reynolds number for non-circular cross section is:

[V = mean velocity

v = kinematic viscosity

P = Ratio of cross sectional area to the wetter perimeter]

Question 2

For sub-critical flows, the value of Froude number is

Question 3

Dimensions of weight density (or specific weight) in terms of fundamental dimensions (M,L,T,θ) is given by

Question 4

Match the List – 1 with List – 2 and select the correct answer using the codes given below:

Question 5

Euler’s number relates:

Question 6

The dimensions of the surface tension are:

Question 7

For Aerodynamic testing application which of the following dimensionless number is used

Question 8

Reynolds number is significant in ____.

Question 9

If ‘n’ variables in a physical phenomenon contained ‘m’ fundamental dimensions. Then the variable can be arranged into:

Question 10

Using the Buckingham Pi (π) theorem, the relevant parameters are density, viscosity, bulk modulus, rotational speed. The number of independent non-dimensional groups are________?

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AE & JE Exams Mechanical Engineering

Jun 14AE & JE Exams