Question The heavier the vehicle: Answers The less important the brakes become. The harder the brakes need to work. The quieter the brakes will sound. Explanation The heavier a vehicle is, the more the brakes will need to work to bring the vehicle to a complete stop. This questions appears in the following tests: Alaska Class B Knowledge Test California Double Connecticut Tank Delaware Class B Knowledge Test Hawaii Passenger Iowa Class B Knowledge Test Louisiana Class A Knowledge Test Maine Double Maine Passenger Michigan Class A Knowledge Test Nebraska Class B Knowledge Test Nebraska Passenger New Hampshire Tank