Question

post-test
when setting up an airless plastic welder, all of these are true except:
a. the work area must be free of excess clutter and water on the floor.
b. adjust heat settings based on shop temperature and humidity.
c. perform test welds prior to performing the repair.
d. allow adequate time for the unit to heat up before welding.

Explanation:

To determine the false statement about setting up an airless plastic welder:

• Option A: A clutter - free, dry work area is a basic safety and operational requirement for welding (to avoid tripping, slipping, or hazards), so this is true.
• Option B: Airless plastic welding heat settings are typically based on plastic type, thickness, etc., not shop temperature/humidity (these factors don’t directly influence plastic welding heat needs as they do for some other processes like paint spraying). So this is false.
• Option C: Test welds ensure the setup works and the weld quality is good before actual repair, so this is true.
• Option D: Allowing the unit to heat up to the correct temperature is necessary for proper welding, so this is true.

Answer:

B. Adjust heat settings based on shop temperature and humidity.