Rough acceleration: 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. This questions appears in the following tests: Connecticut Class B Knowledge Test Idaho Passenger Kentucky Class A Knowledge Test Louisiana Class B Knowledge Test Minnesota Class A Knowledge Test Mississippi HazMat Virginia Class B Knowledge Test
