Your engine runs a pump when you are delivering compressed gas. When should you turn off your engine?
a) Turn it off on arrival; use other power to run the pump
b) Leave it on the entire time
c) Turn it off before unhooking the hose
d) Turn it off after unhooking the hose
Answer: c) Turn it off before unhooking the hose
If the answers is incorrect or not given, you can answer the above question in the comment box. If the answers is incorrect or not given, you can answer the above question in the comment box.