Question

post-test
all of the following are true except:
a. some plastic welders combine both hot air and airless equipment.
b. hot staples help stabilize the damaged area of a torn plastic part.
c. plastic welders melt only the welding rod.
d. plastic welding rod comes in different shapes, sizes, and types of plastic.

Explanation:

To solve this, we analyze each option:

• Option A: Some plastic welders do combine hot air and airless equipment, so this is true.
• Option B: Hot staples are used to stabilize damaged plastic areas, so this is true.
• Option C: Plastic welders typically melt both the welding rod and the base plastic (the part being welded) to create a bond, so saying they melt only the welding rod is false.
• Option D: Plastic welding rods come in various shapes, sizes, and plastic types, so this is true.

Answer:

C. Plastic welders melt only the welding rod.