By opening the air tank petcock
|
|
By releasing the supply valve
|
|
By closing the supply valve
|
|
By turning off the retarder
|
By opening the air tank petcock
|
|
By releasing the supply valve
|
|
By closing the supply valve
|
|
By turning off the retarder
|
Answer correctly : 0 | Wrong : 0
Answer Sheet :
Refresh this page and redo the question
Restart this set of tests