Quillivant XR is an oral suspension (a liquid). It contains about 20 percent immediate release and 80 percent extended-release methylphenidate. After a dose is taken, the medicine begins to work in about 45 minutes and continues working for up to 12 hours.
There are a total of 36 questions on Californiaâs written knowledge test. You must answer a minimum of 30 questions to pass the test. To prepare for the written test, you should study the California Driverâs Manual. You should also take multiple practice exams â this is a good way to determine your knowledge level and identify any weak areas.
The written test examines knowledge of the road signs, rules of the road, safe driving techniques and the laws about alcohol and drug use while driving. To pass the written test, you must correctly answer at least 14 of the 20 questions asked, but you must correctly answer two of the four questions about road signs.