Where do you find adjustments made on a gift or pledge and if you want to exclude them on a query, how do you do that?

We need a bit more information. What are you trying to achieve?

If you open a Gift and click Gift from the Menu bar at the top of the window it will give you an option to do an adjustment. Once the adjustment is done, the changes are reflected in the actual Gift.

Example:

Gift Amount : $50.00

Adjustment: Gift Amount from $50.00 to $35.00

Gift Amount: is now $35.00