|
Every day
|
|
|
Once a week
|
|
|
Once a month
|
|
|
Once every 3,000 miles
|
15/50.
15.
If using air tanks with manually operated drains, how often should you drain the tanks?
Answer correctly : 0 | Wrong : 0
Answer Sheet :
Refresh
Refresh this page and redo the question
Restart
Restart this set of tests