Question After an emergency vehicle passes you with its siren on, you must: Answers Drive closely behind the emergency vehicle. Drive as quickly as the emergency vehicle. Avoid driving closer than 500 feet behind the emergency vehicle. Drive very slowly near the curb. Explanation When you resume driving again after being passed by an emergency vehicle, you must remain at least 500 feet behind it. Take a FREE Practice Test Now This questions appears in the following tests: Pennsylvania Practice Test