UPSC Civil Service Exam Questions - Civil Engineering Questions and Answers

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With 'n' variables and 'm' fundamental dimensions in a system, which one of the following statements relating to the application of the Buckingham's Pi Theorem is incorrect ?

With experience, pi terms can be written simply by inspection of variables in a flow system

Buckingham's pi theorem is not directly applicable in compressible flow problem

Buckingham's pi theorem yields dimensionless pi terms given by the difference between the number of variables and the number of fundamental dimensions

Buckingham's pi theorem reduces the number of variables by the number of fundamental dimensions involved.

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