Question

motorhome and catering truck tanks are used to supply propane appliances, therefore, appliance pilots and electronic ignition systems must be ____________ before beginning the filling operation. choose the correct answer to fill in the blank. turned on turned off

Explanation:

Propane is a flammable gas. To prevent ignition and potential explosion during the filling operation, appliance pilots and electronic ignition systems must be de - activated. So they should be turned off.

Answer:

turned off