76/480.
5.
To avoid carbon monoxide poisoning, drivers should:
Have their exhaust system checked regularly to be sure it does not leak.
Keep their car turned off when it is enclosed in a garage.
Close vents when following closely behind another car.
All of the above.
44 58913 DMV 75 D "" 0

Answer correctly : 0   |   Wrong : 0

Answer Sheet :

Refresh

Refresh this page and redo the question

Restart

Restart this set of tests