how to recoganise if a graph or flow chart is relevant from exam point of view?

While reading economic survey, i came across many graphs. Should the relevant ones be included in our notes? If so, how, since while using them in exam one may not remember their scale, also it will be difficult to draw on scale.

In addition, please guide as how to recoganise if a graph or flow chart etc. is relevant from exam point of view.

The graphs are the easiest representation of data. So taking the topic and picking the relevant ones will help.

Including the graphs are always better - for a clear understanding. While using them in exam, the scale doesn’t matter. But the concept - whether you have understood the subject, concept or not is what that matters. So no problem. You shall pick the graph and use them.