need help answering the question below in the picture Requir

need help answering the question below in the picture. Requires knowledge of SolidWorks

is it true or false and why?
please explain
thanks

Unit consistency in FEA is guaranteed as long as I only use Si units Select one: True False

Solution

False.
Unit consistency : Consistency itself means they are consistant in using everywhere.

In FEA we consider units quite generally, for example:

Here depending upon what primary units we substitute , the corresponding secondary units will change. If I substitute leng in meters, it becomes SI and if I keep foot, it becomes FPS. There are no such constrainsts that only SI units should be used.

1 force unit = 1 mass unit * 1 acceleration unit

1 acceleration unit = 1 length unit / (1 time unit)^2

1 density unit = 1 mass unit / (1 length unit)^3