Do you currently have car insurance? Insurance is mandatory to drive in California Yes I have insurance. But please show me your best quotes. No, please help me find the best insurance. Question Rough acceleration: Answers Can damage parts of a vehicle. Is necessary to warm up parts of a vehicle. Is encouraged to improve a vehicle's gas mileage. Explanation Always speed up smoothly and gradually so that your vehicle does not jerk. Rough acceleration can cause mechanical damage. Take a FREE Practice Test Now This questions appears in the following tests: Iowa Knowledge Test Class B , Missouri Passenger , Vermont Passenger ,