Practice Quiz

Commercial Driver's License

Category - Standard Driving

Start a Study Session Sign up for Question of the Day
Some commercial vehicles have retarders installed on them. These are used for what purpose?
  1. To help the vehicle pick up speed.
  2. To help the vehicle maintain a constant speed.
  3. To help the vehicle slow down.
  4. To help blow dirty air out of the exhaust system.
Explanation
Answer: C - Not all commercial vehicles have retarders installed on them, but many do. Retarders are used to help slow the vehicle down, which, in turn, helps reduce the need for using the brakes. Because these devices create a loud noise, their use is restricted in certain areas, such as near hospitals or in residential neighborhoods. Any restrictions on retarder use are normally posted.
Was this helpful? Upvote!
Login to contribute your own answer or details
Start a Study Session Sign up for Question of the Day

Top questions

Related questions

Most popular on PracticeQuiz