From the above form i want to know can one a touch score values to the dimension questions in the form such that when a person selects a particular option its respective score is captured and then the total score for all the questions is then summed .
It is straightforward. Just use as name the related value and then you can sum in a calculate question. Perhaps you need to include either coalesce or number function.
@Alexander_Torrado gave a great tip - and you can get an easily-calculated score using that method.
If it's helpful, here's another way to do it using the calculation column with if statements - it's a video I made a few years ago - but hopefully helpful!