Question

post-test
which of the following is the quickest way to cool a thermoplastic part?
a. air dry
b. compressed air
c. fans
d. water

Explanation:

To determine the quickest way to cool a thermoplastic part, we analyze the heat transfer efficiency of each option. Water has a higher heat capacity and thermal conductivity compared to air (including air dry, compressed air, or fans). This means water can absorb heat from the thermoplastic part more rapidly, leading to faster cooling. Air - based methods (air dry, compressed air, fans) rely on convective heat transfer with air, which has a lower heat - carrying capacity than water. So, water is the quickest way to cool the thermoplastic part.

Answer:

D. Water