Introduction To Engineering Calculations

Question 1

What are the two types o variable?

Answer 1

Substantial variable and natural variable

Question 2

Substantial variable expressed

Answer 2

Physical standards called units

Question 3

Natural variable expressed___

Answer 3

Phenomena such as Re number, peclet number etc

Question 4

Difference between dimensional homogeneity and heterogeneity ?

Answer 4

In homogeneity we have the same unity in both sides but in heterogeneity We don’t have the same unity

Question 5

Methods for checking and Estimating results

Answer 5

1. Answer reasonable and make sense
2. Simplify calculation/ obtain estimation
3. Substitute calculated answer back
4. Repeat form the beginning
5. Units uniformity / unit that you are looking for