|
Watch for vehicles that must stop at all railroad crossings (school buses, trucks carrying hazardous materials, etc.).
|
|
|
Watch for multiple trains.
|
|
|
Both of the above.
|
32/50.
21.
At a railroad crossing, you must:
Answer correctly : 0 | Wrong : 0
Answer Sheet :
Refresh
Refresh this page and redo the question
Restart
Restart this set of tests