If you fail the DE Driving Exam, you will not receive your DE Driver's License. You will be able to retake the exam after ten days have passed, however, you should not rush retaking it after you have failed. You should pay attention to what your examiner indicates as your weaknesses, and you should work upon improving your driving skills before retaking your DE Driving Exam.
Click here to ask your driving related question.
What happens if I fail my DE Driving Exam?