A Delegated Approver is more like a substitute or alternate approver, who could just approve or reject approval requests. They cannot reassign approval requests as they lack that ability, and only the original approver has that in Salesforce. Excited to learn more about Salesforce? Read our comprehensive Salesforce tutorial, and if you wish to get trained and certified in Salesforce, you could enroll in a good Salesforce course like the one being offered by Intellipaat. To get started, I suggest you watch the following video on Introduction to Salesforce.