Question If in the vicinity of a school where students are present and a helper is not available, a driver: Answers May back the vehicle. May back the vehicle, but only if the path looks clear. May back the vehicle, but at a speed no faster than 10 mph. May not back the vehicle. Explanation A bus must not be backed at a school while students are in the vicinity unless a responsible person is present to guide the driver. This questions appears in the following tests: Illinois Charter Illinois Charter