Question

1. nuts (a type of fastener) used in this class usually included a small part with sharp teeth or a piece of deformable (nylon) plastic. the reason for the parts is to

a. make it easier to tighten the fastener
b. make it easier to loosen the fastener
c. make it more difficult to loosen the fastener
d. make it more difficult to tighten the fastener

Explanation:

The small part with sharp teeth or deformable plastic in nuts acts as a locking - mechanism. It prevents the nut from coming loose due to vibrations or other forces, making it more difficult to loosen the fastener.

Answer:

C. make it more difficult to loosen the fastener